T2613 2 _250 12 Shear_ Manual T26132

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Piranha ¼-12 Operators/Owner’s Manual

Piranha
P.O. Box 457
Hutchinson, Ks 67504
Voice (800) 338-5471
Fax (620) 669-8964
Web Site www.piranhafab.com

No part of this manual may be stored in a retrieval system, transmitted, or, reproduced in any way. Including but not limited to photocopy,
photograph, and magnetic or other record without the prior agreement and written permission of Mega Manufacturing Inc.

PN: T2613-2
Programmable CNC/Goto

Piranha ¼-12 Operators/Owner’s Manual

Table of Contents
1.

Safety ............................................................................................................................................ 6
1.1. Warning Labels ...................................................................................................................... 6
1.2. Safety...................................................................................................................................... 9
1.3. Safety Standards & Specifications ....................................................................................... 10
2. Introduction ................................................................................................................................ 11
3. Installation .................................................................................................................................. 11
3.1. Unpacking ............................................................................................................................ 12
3.2. Placement ............................................................................................................................. 13
3.2.1. Initial leveling ................................................................................................................. 13
3.3. Cleaning ............................................................................................................................... 13
3.4. Precision Leveling................................................................................................................ 13
3.5. Electrical .............................................................................................................................. 14
3.6. Hydraulic.............................................................................................................................. 15
4. Operator Controls ....................................................................................................................... 17
4.1. Main Control Panel Programmable CNC............................................................................. 17
4.1.1. Start................................................................................................................................. 17
4.1.2. Stop ................................................................................................................................. 17
4.1.3. E-Stop ............................................................................................................................. 17
4.1.4. Up Button........................................................................................................................ 18
4.1.5. Cut Length Selector Switch ............................................................................................ 18
4.1.6. Mode Selector Switch..................................................................................................... 18
4.1.7. Shadow Light Switch...................................................................................................... 18
4.2. Backgauge Control-Programmable CNC............................................................................. 19
4.2.1 Keypad Functions ........................................................................................................... 19
4.2.2 Calibration / Re-calibration ............................................................................................ 19
4.2.3 Programming A Job ........................................................................................................ 19
4.2.3.1 Go-To Function .............................................................................................................. 20
4.2.3.2 Programming Jobs .......................................................................................................... 21
4.2.4 Recalling and Running an Existing Job .......................................................................... 22
4.2.5 Editing a Job ................................................................................................................... 22
4.2.8 Stroke Counter ................................................................................................................ 23
4.2.9 Hour Meter...................................................................................................................... 23
4.2.10 Protected Access Screens................................................................................................ 23
4.3. Main Control Panel Programmable GOTO.......................................................................... 24
4.3.1. Start................................................................................................................................. 24
4.3.2. Stop ................................................................................................................................. 24
4.3.3. Up Button........................................................................................................................ 24
4.3.4. Mode Selector Switch..................................................................................................... 24
4.4. Backgauge Control-Programmable GOTO .......................................................................... 25
4.4.1. Programming and Data Entry Keys ................................................................................ 25
4.4.2. Programming Functions.................................................................................................. 25
5. Shear Operation .......................................................................................................................... 27
5.1. Setting the Shear Blades / Ram Gib Check And Adjustment Procedure: ............................ 27
6. Maintenance Procedures............................................................................................................. 29
6.1. Maintenance Schedule.......................................................................................................... 29
6.2. Hydraulic Power Unit........................................................................................................... 30

Piranha ¼-12 Operators/Owner’s Manual
6.2.1. Oil Filter Replacement.................................................................................................... 30
7. Hydraulic & Electrical Schematics............................................................................................. 31
7.1. Electrical Schematic-Programmable CNC........................................................................... 31
7.1.1. Electrical Schematic – Programmable GOTO ................................................................ 43
7.2. Hydraulic Schematic- 20 HP Motor..................................................................................... 49
7.2.1. Hydraulic Schematic-15 HP Motor ................................................................................ 50
8. Parts ............................................................................................................................................ 51
8.1. Finger Guard ........................................................................................................................ 51
8.2. Ram & Linkage .................................................................................................................... 52
8.3. Back Gauge Assembly-Programmable CNC ....................................................................... 53
8.3.1. Back Gauge Assembly Programmable GOTO ............................................................... 54
8.4. Back Gauge & Bar Adjustment............................................................................................ 55
8.5. .............................................................................................................................................. 55
8.6. Bed Components .................................................................................................................. 56
8.7. Hydraulic Assemblies-20 HP Motor .................................................................................... 57
8.7.1. Hydraulic Assemblies-15 HP Motor............................................................................... 58
8.7.2. Valve Body Assembly 20 HP ......................................................................................... 60
8.8. Oil Filter Assembly .............................................................................................................. 63
8.9. Main Operator Control Panel-Programmable CNC ............................................................. 64
8.10. Blade Adjust Components.................................................................................................... 65
8.11. Ram Slides ........................................................................................................................... 66
8.12. Back Gauge Motor Assembly .............................................................................................. 67
9. Glossary ...................................................................................................................................... 69
10. Index ........................................................................................................................................... 73
11. Addendums................................................................................................................................. 75

Piranha ¼-12 Operators/Owner’s Manual

Table of Figures
Figure 1: Lifting Lug Location .............................................................................................................. 12
Figure 2: Fuse Size Chart ...................................................................................................................... 15
Figure 3: Oil Level & Temperature Sight Gauge .................................................................................. 15
Figure 4: Main Control Panel-Programmable CNC .............................................................................. 17
Figure 5: Oil Filter Assembly Exploded View ...................................................................................... 30
Figure 6: Electrical Diagram 1 of 10 ..................................................................................................... 31
Figure 7: Electrical Diagram 2 of 10 ..................................................................................................... 32
Figure 8: Electrical Diagram 5 of 10 ..................................................................................................... 35
Figure 9: Electrical Diagram 7 of 10 ..................................................................................................... 37
Figure 10: Hydraulic Diagram 1 of 1..................................................................................................... 49
Figure 11: Finger Guard ........................................................................................................................ 51
Figure 12: Ram & Linkage .................................................................................................................... 52
Figure 13: Back Gauge Assembly ......................................................................................................... 53
Figure 14: Back Gauge & Bar Adjustment............................................................................................ 55
Figure 15: Bed Components .................................................................................................................. 56
Figure 16: Hydraulic Power Unit........................................................................................................... 57
Figure 17: Hydraulic Fittings................................................................................................................. 59
Figure 18: Valve Body Assembly Top View......................................................................................... 60
Figure 19: Valve Body Assembly Front View ...................................................................................... 60
Figure 20: Valve Body Assembly Left Side View ................................................................................ 61
Figure 21: Oil Filter Assembly (PN-0591550) Exploded View ............................................................ 63
Figure 22: Piranha 1/4-10 Shear Electrical Panel ......................................................................................
Figure 23: Piranha 1/4-10 Shear Operator Control Panel..........................................................................
Figure 24: Electrical Panel T04081 ...........................................................................................................
Figure 25: Blade Adjust Components.................................................................................................... 65
Figure 26: Gib Parts............................................................................................................................... 66
Figure 27: Back Gauge Motor Assembly .............................................................................................. 67

Piranha ¼-12 Operators/Owner’s Manual

1. Safety
Safety must be a primary concern. When operating or performing maintenance procedures, follow
all standard safety guidelines. Do not wear loose fitting clothing or any articles that may be pulled
into any moving parts.
Be sure that when operating the equipment, all safety devices operate properly. Never under any
circumstances disable, remove, or alter the original configuration of the safety system.
Should any component of the safety system become inoperable, immediately discontinue
operation, and notify a supervisor.

!
!
!

NEVER place fingers, hands, or any other body part in or under the blade area
or other moving mechanisms.
Proper eye protection must be worn at all times when operating the machine.
Always insure that the machine is turned OFF before servicing the machine.

Read and understand this manual prior to operating the machine.
The area around the Piranha 1/4-12 Shear should be well lighted, dry, and free of obstacles.
The Piranha 1/4-12 Shear is designed for single person operation only.
When servicing the machine always practice standard lockout/tag-out procedures to avoid
personal injury.
Qualified maintenance personnel only should perform service operations on the Piranha 1/4-12
Shear.

1.1. Warning Labels
Located around the Piranha 1/4-12 Shear are labels warning the operator of various dangers and
precautions to be aware of when operating or servicing the machine.
Do not go near leaks
High-pressure oil easily punctures
skin causing injury, gangrene and
even death. If injured, seek
emergency medical help.
Immediate surgery is required to
remove oil. Do not use finger or
hand to check for leaks. Lower
load or relieve pressure before
loosening fittings.

Part – T0067

Piranha ¼-12 Operators/Owner’s Manual

Keep hands clear of moving parts.

Part – T0068

To prevent serious bodily injury do
not remove throat guard except
when slitting. Replace for normal
operation. It is the employer’s
responsibility to implement the
above and also to provide proper
devices or means that may be
necessary or required for any
particular use, operation set-up or
service.

Part – T0379
To prevent serious bodily injury;
Never place any part of your body
under the hold down or ram (slide)
mechanisms; or within the knife
blade area.
Never operate, install knife blades,
or maintain this machine without
first reading and understanding
the operators or machine manual.
Never operate without the finger
guard properly installed.
Never have main motor “on”
during removal, installation, or
adjustment of knife blades; scrap
cleanout; or, for any
servicing/maintenance
whatsoever.
It is the employer’s responsibility
to implement the above and also
to provide proper devices or
means that may be necessary or
required for any particular use,
operation set-up or service.

Part – T0380
7

Piranha ¼-12 Operators/Owner’s Manual

To insure proper operation of
shear back gauge;
Never ram material against back
gauge.
Never use back gauge drive to
move material being cut on table.
Never pass material being cut
over or under back gauge.
Always use disappearing feature
cutting parts larger than normal
back gauge range.
Failure to follow these instructions
may result in damage to back
gauge. Always refer to operation
manual for proper use of machine

Part – T0381
Moving part; do not obstruct.

Part – T0382

To prevent serious bodily injury;
Do not enter rear area of machine
while in operation.
It is the employer’s responsibility
to implement the above and also
to provide proper devices or
means that may be necessary or
required for any particular use,
operation set-up or service.

Part – T0383

Piranha ¼-12 Operators/Owner’s Manual

Both ends of the bed are to be
leveled within 0.0005 inch/foot for
proper operation. Running the
machine out of level will cause
damage and void the warranty.

Part – T0384

Maximum allowable clearance
under finger guard is ½”.

Part – T0936

1.2. Safety
1. Immediately report any questionable operation, unusual action, unsafe condition or
improper maintenance to the proper personnel.
2. When working with other people insure that all persons are clear of the shear prior to
machine operation.
3. Insure that the proper safe material handling equipment (tongs, pliers, vacuum lifters or
other mechanical devices) available to the shear operator.
4. When changing the settings of shear controls, insure that the controls are properly
adjusted and test cycle the machine to verify correct operation.
5. Insure that all devices are in proper working order.

6. Anytime that the machine has been left unattended or inoperative for even a brief time,
verify the correct position of all controls and proper shear operation.

7. Develop a sense of safety for yourself and any persons around you as well as your
surrounding area.

Piranha ¼-12 Operators/Owner’s Manual

1.3. Safety Standards & Specifications
Electrical System Design/Manufacture:
The machines manufactured in Hutchinson, KS, are furnished with electrical/electronic
products that are UL (Underwriter’s Laboratory) approved. These components have the UL
numbers printed or stamped on them and can be easily traced to the point of manufacture.

Hydraulic System Design/Manufacture:
Hydraulic components used in Piranha machines are approved by NFPA (National Fluid
Power Association), and those approval numbers can be traced through the manufacturer’s
part numbers.

ANSI/OSHA Compliance:
Mega Manufacturing meets the current ANSI construction standards for manufacturing of
ironworkers, press brakes, and shears:
ANSI B11.4—Shears, Construction, Care, and Use
The ANSI B11 standards were developed to establish levels of responsibility for
manufacturing safe products, installation, training, and use of these products. The levels of
responsibility are fairly evenly distributed between the manufacturer, the owner/end user of
the equipment, and the operator. Specific guarding requirements are in general assigned to the
owner/end user of the equipment.
Please understand that this ruling places the primary burden of responsibility for maintenance
of guarding on the owner /end user of the equipment. Inherent in this requirement is the
responsibility of the owner/end user of the equipment to develop and maintain guarding
specific to their application for the equipment. These ANSI safety requirements may be
acquired from:
American National Standard Institute
254 West 43rd Street
New York, New York 10036
Telephone (212) 302-1286
www.ansi.org

PO Box 457
Hutchinson, KS 67504-0457
Phone: (800) 338-5471
Fax: (620) 669-8964

Piranha ¼-12 Operators/Owner’s Manual

2. Introduction
The Piranha Maxi Shear is a heavy steel constructed, high performance hydraulic powered
machine that provides you several important advantages surpassing most other shears in today’s
market. The Piranha’s single hydraulic cylinder and mechanical linkage system provides the
following advantages: 1. The upper shear blade moves parallel to the lower blade thus providing
maximum blade life, 2. Full length gibbs guide the ram laterally and front-to-back at all times
during the shearing process thus increasing rigidity, shearing accuracy, and blade life, 3. The
straight-line shearing action improves shearing accuracy in all metal thickness.
The machine arrives fully assembled requiring only hydraulic oil and electrical power to become
fully operational. The heavy steel “C” frames, interlocking cross members, ram, and bed provide
the rigidity and resistance to deflection that is necessary for accurate performance. State-of-theart, maintenance-free, aerospace bearings provide high load capacity and low friction in the form
of a thin walled sleeve. They are completely non-metallic and require no lubrication.
Other standard features include: Full length hardened slides with non-metallic ways, variable cut
length adjustment, hydraulic hold downs with replaceable polyurethane shoes, heavy duty,
inch/mm motorized, disappearing back gauge with Go-To features and .100” retract feature on
each stroke. A 53" squaring arm with recessed inch/mm scale, four-edge high chrome, high
carbon shear blades top and bottom.
Proper understanding and application of the information and procedures given in this manual will
aid in establishing a preventative maintenance program and provide assistance for correcting
malfunctions that may occur in the machine. The repair parts list provides information for part
procurement and assembly breakdowns to aid in disassembly and re-assembly for repair parts
installation. Please have machine serial number available when contacting the factory for service
or repair parts.

Warranty
Mega Mfg. will replace or repair with like parts, either new or rebuilt, F.O.B. the factory, or
refund the purchase price for any parts on ironworkers, pressbrakes, or shears, which are
defective in materials and workmanship within (12) months of the date of purchase. Provided the
buyer returns the warranty registration within (30 days) of the purchase date, and, at the seller’s
option, returns the defective materials freight and delivery prepaid to the seller, which shall be the
buyer’s sole remedy for the defective materials. A 5 year warranty against defects in materials
and workmanship applies to major structural components on pressbrakes and shears. Seller shall
not be liable to purchaser or any other person for consequential or incidental damages. Hydraulic
and electrical components are subject to their respective manufacturer’s warranties. This warranty
does not apply to machines and/or components which have been altered in any way, or subjected
to abusive or abnormal use, inadequate maintenance and lubrication, or to use beyond seller
recommended capacities and specifications. Seller shall not be liable under any circumstances for
labor costs expended on such goods or consequential damages. Seller shall not be liable to
purchaser or any other person for loss or damage directly or indirectly arising from the use of the
goods or any other cause. No employee, agent, officer, or seller is authorized to make oral
representations or warranty of fitness or to waive any of the foregoing terms of sale and none
shall be binding on the seller.

Piranha ¼-12 Operators/Owner’s Manual

3. Installation
BEFORE INSTALLING THIS SHEAR, READ AND UNDERSTAND THE SHEAR
MANUAL WITH PARTICULAR ATTENTION TO “SAFETY TIPS FOR MAINTENANCE
PERSONNEL” THE CURRENT ANSI B11.4 STANDARD-“SAFETY REQUIREMENTS
FOR THE CONSTRUCTION, CARE AND USE OF SHEARS.” Copies can be ordered
from: American National Standards Institute, 1430 Broadway, New York, New York
10018

3.1. Unpacking
CAUTION: THE SHEAR IS HEAVY IN FRONT. GUARD AGAINST TIPPING UNTIL
ANCHOR BOLTS ARE SECURED.
This machine was carefully packaged at the factory to avoid damage during shipment, should
any accidental damage occur contact the responsible freight company immediately and report
the damage. Indicate any damage on the Bill of Lading. All Warranty information included
in this packet must be returned to the factory.

Figure 1: Lifting Lug Location
The Piranha 1/4-12 Shear must only be lifted using a crane, and the lifting lugs located in
front of the hydraulic oil tank on top of the machine. Do not lift the machine from the bottom
(forklift or jack) as the machine is top and front heavy and can tip resulting in serious bodily
harm or death. Lifting the machine from the bottom can also result in machine damage.

WARNING: CHECK BLADE GAP BEFORE CYCLING MACHINE.
FAILURE TO DO SO MAY CAUSE BLADE DAMAGE

Piranha ¼-12 Operators/Owner’s Manual

3.2. Placement
Piranha recommends that the machine be placed on a reasonably level concrete foundation
suitable to support the shear’s total weight and in accordance with local building codes. The
machine should be placed on a single concrete pad free of cracks and seams. Prior to
anchoring or setting, the shear should be leveled and shimmed. Section 3.4 of this manual
discusses leveling the machine. Anchoring can be accomplished using suitable masonry
anchors. Use the machine as a template for anchoring hole locations. Placement of the
machine should allow easy access around the machine for the operator and maintenance
personnel. For safe operation placement should allow tooling to be installed onto the bed
from the end of the machine.
It is recommended that a minimum four-foot area around the Piranha 1/4-12 Shear be
provided.

3.2.1. Initial leveling
CAUTION: THE SHEAR IS HEAVY IN FRONT. GUARD AGAINST TIPPING
BEFORE AND DURING LEVELING.
Level adjusting screws are only provided on the rear feet. The Piranha 1/4-12 Shear
must be placed on four steel pads: 2 each 6" x 6" x ¾" for the front feet and 2 each 6"
x 6" x ½" for the rear feet. These pads are provided with the shear.

3.3. Cleaning
Clean the bed surface, with a mild solvent so as not to damage the paint finish on the
machine. The main cylinder rod must also be free of contaminants. Any contaminants left on
the cylinder rod may damage the chrome finish and related hydraulic seals. The cylinder rod
must be clean and dry. Wipe down the rest of the shear with a mild cleaning solution.

3.4. Precision Leveling
The Piranha 1/4-12 Shear must be leveled precisely prior to operation. The following steps
represent the typical leveling procedure. These instructions must be followed to avoid
damaging the machine.
Using a machinist level, having an accuracy of one-half thousandths of an inch per foot, place
the level facing front to back on the left side of the shear squaring arm. Adjust the rear
leveling bolt until the bubble on the level is centered. Then, repeat for the right side, placing
the level on the outside of the table. It’s very important that the sides of the table be parallel
to each other with no crosscorner binding of the table. Once the machine is level, place
shims having a thickness equal to the gap, between the base plate and the bottom of the shear
foot. After your shim stock is in place release the adjusting bolts and recheck the level to
ensure that the left and right side of the machine have remained parallel. Tighten the
anchoring bolts and recheck the level of the shear. If necessary, re-adjust the shim pack
height if the shear has moved during anchoring. Do not cycle machine before it’s leveled, or
you may damage the shear blades!
NOTE:
Re-check machine level after the first 200 hours of operation, and at regular intervals.
Consult the Maintenance section for additional information.

Piranha ¼-12 Operators/Owner’s Manual

3.5. Electrical
CAUTION: ELECTRICIANS CHECKING DIRECTION OF ROTATION SHOULD BE
CAUTIONED NOT TO OPERATE THE SHEAR UNTIL IT HAS BEEN
THOROUGHLY CHECKED, CLEANED, LEVELED AND LUBRICATED. A WIRING
DIAGRAM IS FURNISHED IN THIS MANUAL. SHEAR OPERATING MODE
SWITCH MUST BE IN THE OFF POSITION WHEN CHECKING MOTOR
ROTATION.
BEFORE DRILLING ANY HOLES IN THE ELECTRICAL ENCLOSURE, BE SURE
THAT THE ELECTRONIC CIRCUIT BOARDS/EQUIPMENT ARE PROTECTED
FROM METAL CHIPS CONTACTING THE CIRCUIT BOARD(S). DO NOT USE
COMPRESSED AIR TO BLOW METAL DEBRIS FROM THE ENCLOSURE. USE A
VACUUM TO REMOVE ANY METAL PARTICLES.
Voltage requirements may be verified by comparing the fuse part number to the chart located
on the inner door panel of the main electrical box. (See Figure 2)

Piranha ¼-12 Operators/Owner’s Manual

SHORT CIRCUIT AND OVERLOAD FUSE PROTECTION
F1-F2-F3
15 HP MOTOR
20 HP MOTOR
VOLTAGE

TYPE

AMP

VOLTAGE

TYPE

AMP

208 VOLT

230 VOLT

460 VOLT

575 VOLT

17.5

575 VOLT

Figure 2: Fuse Size Chart

3.5.1 Motor Rotation
Electrical connection of the 3-phase systems requires proper phasing. When connecting the
press to a 3-phase power source, the rotational direction of the pump drive motor must be
correct. The rotational direction may be observed by removing the orange cover plate located
on the pump/motor adapter. The motor must rotate in the direction of the arrow on the motor.
Before operating the machine insure the cover is securely in place.
A licensed electrician should perform all electrical connections.

Warning - The control transformer is for machine operation only. Do not use the
machine transformer to power any secondary devices.

3.6. Hydraulic
Before applying power to the Piranha 1/4-12 Shear, the hydraulic reservoir must be filled
with oil. To fill the reservoir, locate and remove the filler/breather cap on top of the reservoir.
Fill the reservoir with Mobil DTE-13 or ISO32 equivalent, filtered to an ISO 17/15/13cleanliness level. The proper oil level is between the red and black lines of the sight gauge
found on the rear of the reservoir (See Figure 3). Do not over fill the reservoir. Replace the
filler/breather cap.

Figure 3: Oil Level & Temperature Sight Gauge

Piranha ¼-12 Operators/Owner’s Manual
Upon initial start-up of the hydraulic unit visually inspect around the machine for any
possible leaks. Do not search for hydraulic oil leaks using exposed flesh; hydraulic
pressure can puncture the skin.

3.6.1 Rear Safety Guards
Reposition the yellow machine safety guards, so they protrude past the rear of the side frames. The
guards must be positioned to prevent a person from entering the backgauge bar travel area.

Piranha ¼-12 Operators/Owner’s Manual

4. Operator Controls
Operator selectable controls are provided on the Pedestal Control and on the Main Control Panel.
Functionality of both stations is described in the following subsections.

4.1. Main Control Panel Programmable CNC
The main control panel is located on the left hand side of the Piranha 1/4-12 Shear. The
following subsections describe the controls located on this panel.

Figure 4: Main Control Panel-Programmable CNC

4.1.1. Start
Depressing the green Start pushbutton will apply power to the electric motor that
drives the Piranha 1/4-12 Shear hydraulic power unit.

4.1.2. Stop
Depressing the stop button will stop the pump motor, but will maintain electrical
power to the backgague control. Re-calibration of the backgague is not required when
the Stop button is depressed.

4.1.3. E-Stop
When you depress the emergency stop, electrical power will be removed from the
drive motor and all base machine control circuits, stopping all machine movement.
Twist the button clockwise to reset it. The machine cannot start until the E-Stop
button has been reset. The backgauge must go through its calibration sequence when
the machine is powered up again.

Piranha ¼-12 Operators/Owner’s Manual

4.1.4. Up Button
The up button will raise the ram from any position to the full up position

4.1.5. Cut Length Selector Switch
The cut length selector switch controls the stroke depth of the ram. Shortening the
ram stroke permits rapid shearing of shorter material.

4.1.6. Mode Selector Switch
The run mode selector switch permits three operating modes:
Single: The ram will descend when the footswitch is depressed and will pause when
the footswitch is released at any point during the down stroke. The shear ram will
complete only one cycle in this mode. The footswitch must be reactivated to begin a
new shearing cycle.
Jog: During a shear cycle, the ram will stop when the footswitch is released.
Continuous: The ram will cycle continuously when the footswitch is depressed.
Releasing the footswitch during the down stroke will cause the ram to stop, releasing
the footswitch during the upstroke will not affect the return stroke of the ram.

4.1.7. Shadow Light Switch
The shadow light switch will turn on lights that cast a shadow line onto the material
being sheared.

Piranha ¼-12 Operators/Owner’s Manual

4.2. Backgauge Control-Programmable CNC
4.2.1 Keypad Functions

MAIN BACKGAUGE CONTROL CONSOLE
4.2.2

Calibration / Re-calibration
On initial power up or when the E-Stop button has been depressed, the backgauge
/controller must be calibrated. The controller will sequence through a start routine
and ask for the calibration button to be depressed. Simply depress the “CAL” (F2)
button and the backgauge will automatically perform the calibration sequence.

CALIBRATION SCREEN
4.2.3

Programming A Job
When the calibration sequence has been performed, the controller will display the
“MAIN SCREEN”. See Figure #3.
19

Piranha ¼-12 Operators/Owner’s Manual

MAIN SCREEN
IN/MM: Depress the IN/MM button to toggle between Inch and MM modes.
Programming may be done in either mode.
RETR: Depressing the RETR button will cause the backgague to position in the fully
retracted mode, i.e.: the backstop bar will be positioned at the furthest dimension and
parked in the “disappearing position.
Two options are available for programming a job, a single “Go-To” dimension, or a
multi step job.
4.2.3.1

Go-To Function
Depress the “Go-To” button, enter the desired dimension (must be between .250 &
36.00”) and press enter. The control will display an “Entry accepted” message and
the backgauge will move to the programmed position. Position the material against
the backstop bar, operate the footswitch to initiate the shear cycle.

GO-TO SCREEN
20

Piranha ¼-12 Operators/Owner’s Manual
4.2.3.2
1.
2.
3.
4.
5.

6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.

Programming Jobs
To program a multi step job, perform the following steps:
Depress the “JOBS” button (F1)
Use the up or down arrow keys to select a blank job field.
Depress the “MODIFY” button.
Depress the “NEW” button.
Enter a job name. The entry may be all alphas, numeric or alphanumeric. To use the
alpha characters, depress the “SHIFT” button which is located on the lower left corner
of the keypad.
Note: If you make an error entering the job title, use the left/right arrow button to
move the cursor under the incorrect digit, press the “DEL” button, and continue
entering the correct information.
When the job title is programmed, depress the “ENTER” button.
Depress the “EDIT” button
Enter the target backgauge dimension and depress the “ENTER” button.
Enter the number of cuts (or cycles) in the “Reps” field; depress the “ENTER” button.
To enter additional steps or cycles, depress the “ADD” (F1) button and repeat steps 8
& 9.
If one of the steps requires the backgauge to retract fully, depress the “RTRCT”
button (F5) in the “Length” field.
When the job is programmed, depress the: DONE” (F6) button.
To run the job, depress the “DONE” button.
Depress the “RUN” button.
Depress the “ENTER” button, and the backgauge will advance to the position
programmed in step 1.
When the complete job has been cycled, the screen will display “JOB COMPLETE”.
Depress the “OK” (F5) button and the screen will revert to the “MAIN SCREEN”
display.

MULTI-STEP JOB SCREEN

Piranha ¼-12 Operators/Owner’s Manual
4.2.4

Recalling and Running an Existing Job

1. From the Main screen, depress the “JOBS” button (F1)
2. Using the up/down arrow buttons, maneuver the desired job to the
highlighted field and depress “RUN” (F2).
3. Enter the number of cycles required to run this job.
4. The screen will display a confirmation of the job number to run, depress the
“ENTER” button to run the job.
4.2.5

Editing a Job

1. From the Main screen, depress the “JOBS” button (F1)
2. Using the up/down arrow buttons, maneuver the job list to the highlighted
field and depress “MODIFY” (F4).
3. The “JOB ENTRY” screen will display.
4. Depress the “EDIT” (F3) button.
5. The parameters of each step will display. Using the up/down arrow buttons, move
the field to the step to edit and depress the “EDIT” (F2) button.
6. Edit the firs field or press the “ENTER” button to advance to the next field to be
changed. Make the desired changes and depress the “ENTER” button to accept the
changes.
7. Depress the DONE” (F6) button to complete the sequence.
8. Depress the DONE” (F6) button again to enter the “JOBS” screen.
4.2.6

Renaming a Job

1. From the Main screen, depress the “JOBS” (F1) button
2. Using the up/down arrow buttons, maneuver the job list to the highlighted
field and depress “MODIFY” (F4).
3.
4.
5.
6.
7.
4.2.7

The “JOB ENTRY” screen will display.
Depress the “RENAM” (F2) button.
Enter the new name for the job,
Depress the “ENTER” button to accept the changes.
Depress the DONE” (F6) button to complete the sequence.

Copying a Job

1. From the Main screen, depress the “JOBS” (F1) button
2. Using the up/down arrow buttons, maneuver the job list to the highlighted
field and depress “MODIFY” (F4).
3. The “JOB ENTRY” screen will display.
4. Depress the “COPY” (F4) button.
5. The COPY screen will display information stating the “copy from XXX and the
New Job will be XXX (2)”
6. Depress the “OK” (F2) button.
7. The job will be copied and renamed XXX (2).
8. To rename the job, use the up/down arrow buttons, maneuver the job to the

highlighted field.
8. Depress the “RENAM” (F2) button.
9. Enter the new name for the job,
10. Depress the “ENTER” button to accept the changes.
11. Depress the DONE” (F6) button to complete the sequence.

Piranha ¼-12 Operators/Owner’s Manual
4.2.8

Stroke Counter
1. From the Main screen, depress the “RESET” (F3) button
2. To reset the stroke counter, depress the “STRKS” (F4) button.
3. Depress “DONE” (F6) button.

4.2.9

Hour Meter
1. From the Main screen, depress the “RESET” (F3) button
2. To reset the hour meter, depress the “HOURS” (F2) button.
3. Depress “DONE” (F6) button.

4.2.10 Protected Access Screens
F7, - F9 are dedicated function pushbuttons.
F9 will return an operator to the “MAIN SCREEN”
F7 is a protected access screen for supervisor entry. This screen permits the resetting
of service-required messages and other machine tuning functions. A temporary access
code (9999) is programmed, permitting initial access to the protected screen. This
enables a supervisor to enter preferred access code. The following section describes
the functions available in the Supervisor Screen.
Delay Time: Permits programming a “global” time delay between shearing cycles in
Continuous Mode.
Zero Offset: Permits electronic tuning of the backgauge calibration position. This is a
“global” adjustment.
Service Notes: At predetermined intervals, a *Srvc. Req’d message will appear in the
upper left corner of the display. This function reminds the operator or maintenance
department that scheduled preventative maintenance is due. Depressing the “SERVICE
NOTES” (F3) pushbutton will display the maintenance requirements for this service cycle.
Piranha highly recommends that this schedule is followed. Failure to do so may result in
unscheduled maintenance requirements.
To clear the service reminder, press F7 and enter the Supervisor password (Factory default
password is 9999) and press Enter. Press F3 – Clear – Done.
Reset: Supervisor Hours & Supervisor Strokes
New Password: Permits supervisor(s) to change password at their discretion.
F8: is a Mega protected screen and is only accessible through a password supplied by the
factory. This section contains vital machine operational codes and settings and must not be
accessed without authorization and supervision from a Piranha service engineer.

Piranha ¼-12 Operators/Owner’s Manual

4.3. Main Control Panel Programmable GOTO
The main control panel is located on the left hand side of the Piranha 1/4-12 Shear. The
following subsections describe the controls located on this panel.

Figure 5: Main Control Panel-Programmable GOTO

4.3.1. Start
Depressing the green Start pushbutton will apply power to the electric motor that
drives the Piranha 1/4-12 Shear hydraulic power unit.

4.3.2. Stop
Depressing the stop button will stop the pump motor.

4.3.3. Up Button
The up button will raise the ram from any position to the full up position

4.3.4. Mode Selector Switch
The run mode selector switch permits the operator to select between three operating
modes:
Single: The ram will descend when the footswitch is depressed and will pause when
the footswitch is released at any point during the down stroke. The shear ram will
complete only one cycle in this mode. The footswitch must be reactivated to begin a
new shearing cycle.
Jog: During a shear cycle, the ram will stop when the footswitch is released.

Piranha ¼-12 Operators/Owner’s Manual
Continuous: The ram will cycle continuously when the footswitch is depressed.
Releasing the footswitch during the down stroke will cause the ram to stop, releasing
the footswitch during the upstroke will not affect the return stroke of the ram.

4.4. Backgauge Control-Programmable GOTO
4.4.1. Programming and Data Entry Keys
0-9

Use the number keys to input numerical values, or to perform special
functions when used in conjunction with the Function (FCN) key.

IN/MM Select measurement unit (inch or metric).
between the two modes.

Depress this key to toggle

FCN Function key is used in conjunction with other data entry keys to enable
special functions.
CAL Used to enable calibrate the backgauge.
GO

Used to initiate backgauge movement to a programmed position.

CLR Clears data entry, zeros display, cancels preset mode.
Decimal Used to enter decimal during data entry. Restores display to target after
GO has been depressed.
Decimal Blinking Target dimension is being displayed, to view actual dimension,
momentarily depress CAL button.
Decimal Solid Actual position is being displayed, to view target dimension,
depress decimal point button.

4.4.2. Programming Functions
4.4.2.1.

Backgague Positioning
Enter desired dimension using keypad and depress GO button. Backgague
will position to programmed dimension.

4.4.2.2.

Presets
This control will store 9 preset dimensions (1-9).
To program a preset dimension, (1) enter the dimension using the keypad,
(2) press FCN, the letter “P” will show on the left side of the display.
(3) press and hold the preset number the dimension is to be stored with until
the flashing stops. For example, if a dimension of 12.375” is to be stored in
preset #7, use the following procedure. On the keypad enter (1) (2) (,) (3) (7)
(5) (FCN) Press and hold (7) until the flashing stops. 12.375 has been stored
in preset #7.
To recall a stored preset, press the FCN key, press the desired stored preset
number (1-9), when the GO button is depressed, the backgauge will position
to the preset dimension. For example, to recall preset #7 (which has a
dimension of 12.375” stored), Press FCN, press #7 (on the keypad), 12.375

Piranha ¼-12 Operators/Owner’s Manual
will display on the LED readout. Depress the GO button to position the
backgague to 12.375”
WARNING: DO NOT USE PRESET STATION #0 for programming
preset stations.

4.4.2.3.

Calibration / Re-calibration
To calibrate the backgague to an actual position, use the following
procedure:
1. Measure the actual distance from the lower blade edge to the
backgauge bar. (Example 20 inches) Press (CLR), (2) (0)(.) (0) (0)
Press and hold (CAL) until flashing stops. The display will show the
calibrated value (20.000”)
2. Enter a short distance, (i.e. 3”), press GO button, backgauge will
position to 3”.
3. Shear a piece of metal and measure the sheared part with a caliper.
Enter the measured dimension onto the keypad, press and hold CAL
until the flashing stops. Verify the accuracy by shearing another
part. Repeat step # 3 if minor adjustments are required.
IMPORTANT:
DO NOT DEPRESS THE STOP BUTTON WHEN THE SHEAR
BACKGAUGE IS IN MOTION. This will cause the backgague to loose
calibration and will require recalibration.
ENSURE SHEAR BLADE/RAM IS AT THE TOP OF STROKE before
turning machine off. Failure to do so will require backgague recalibration.

NOTE: If the backgauge begins “Hunting” for position (continuously goes past the target position),
either the drive chain (FIG 25A & B) is too loose or the “Drag Block” (Fig 25C & E) has become
loose. To adjust the drag block, loosen the jam nut (FIG 25E) and tighten the adjusting screw
clockwise in 1/16 rotations until the “Hunting” stops.
WARNING: Over adjusting the tightness on the drag block will cause premature motor failure or
electrical over current which will result in a blown fuse.

Piranha ¼-12 Operators/Owner’s Manual

5. Shear Operation
BEFORE OPERATING THE SHEAR, READ AND UNDERSTAND THE CURRENT
ANSI B11.4 STANDARD. CAUTION: READ AND UNDERSTAND THIS ENTIRE
MANUAL BEFORE PLACING SHEAR IN OPERATION.

WARNING: CHECK BLADE GAP BEFORE CYCLING MACHINE.
FAILURE TO DO SO MAY CAUSE BLADE DAMAGE

!
!

Always review the instructions provided in this manual and observe shearing safety rules!
Insure that no tools, bolts or other obstructions are in the knife area prior to operating the
shear.

Locate any available safety handling tools required.

Keep the floor and surrounding area clean and free of obstruction, debris and oil.

5.1. Setting the Shear Blades / Ram Gib Check And Adjustment Procedure:
The following procedure for blade adjustment is recommended:
1. Verify that the shear is level.
2. ALWAYS check gib clearance before adjusting blade clearance.
Checking gib clearance:
3. Position the shear ram at the top of stroke so the slides are in full contact with the gibs.
4. Remove Side Cover Guards from gib area.
5. Ensure clearance exists between the Blades to prevent blade clash when the blades cross.
6. When checking slide clearances, it is easiest to perform the checks from the rear of the
machine. When checking the bottom gib clearances, the low side (left side) and the high side
(right side) should be checked 3” from the bottom of the gib assembly. When checking the
clearances at the top of the gibs, the low (left side) should be checked from the top gib
assembly. The high side (right side) should be checked from the top gib assembly:
7. With a feeler gauge, check the clearance at the bottom of the slide. The feeler gauge must fit
between the bearing material and the front side of the ram slide. Acceptable clearance is .003.004”
8. Repeat this measuring procedure for the other side of the machine.
Adjusting gib clearance:
9. To tighten clearances, loosen the 3/8” jam nut located at the bottom of the slide assembly.
Using an Allen wrench rotate the setscrew clockwise until correct clearance is achieved. Lock
jam nut on setscrew.
10. Repeat this procedure for the other side of the machine if adjustment is required.
11. To check the clearance on the top of the slide, insert a feeler gauge between the bearing
surface on the rear side of the ram slide. Acceptable clearance is .003”-.004”
12. To tighten clearances, loosen the 3/8” jam nut located at the top of the slide assembly. Using
an Allen wrench rotate the setscrew clockwise until correct clearance is achieved. Lock jam
nut on setscrew.

Piranha ¼-12 Operators/Owner’s Manual
13. Repeat this procedure for the other side of the machine if adjustment is required.
14. Re-adjust the remaining setscrews by tightening the screws with a firm “snug”. Tighten the
jam nuts.
15. After all the adjustments have been made, re-check the clearances to ensure that they have not
moved during the adjustment process.

ADJUSTING SIDE THRUST BEARINGS:
1. To set the clearance, loosen the top and bottom jam nuts. Using an Allen wrench rotate the
top setscrew clockwise until the set screws stops firmly. Back off setscrew and re-tighten to a
light stop. Lock jam nut on setscrew.
2. Repeat this procedure for the bottom adjusting screw.
3. Re-adjust the remaining setscrews by tightening the screws to a light “snug”. Tighten the jam
nuts.
4. Repeat this procedure for the other side of the machine.
5. Grease the gibs after adjustments are complete. Cycle the ram while greasing the gibs.

CHECKING AND ADJUSTING SHEAR BLADE CLEARANCE:

1.
2.
3.

5.
6.

Nominal knife clearance is typically .004” at the ends and .002” in the center of the shear.
The feeler gauge should have a slight resistance or “drag” as it is slid across the blade intersect
point.
Jog the ram down until the knives intersect before reaching the first hold down.
Check clearance at this point and then jog ram down and check clearance at the center of the
machine and then at the far end or (high side) of the machine.
To adjust blade gap clearance at each end of the blade, loosen top 4 bed bolts, two on each end
of the table, and four table stabilizer bolts. Two bolts are located at the bottom of the vertical
table stiffener on the inside of the side frame. The second set of stabilizer bolts are located on
the outside bottom middle of the side frame. Adjust table in or out by adjusting the
“push/pull” table adjusting bolts located in a machined pocket on the table ends.
Be sure that the blade gap in the center of the shear will not interfere when adjusting the end
clearance. When correct blade clearance is achieved, re-tighten the four table bolts to 300 ft.
lbs. Tighten the stabilizing bolts on the outside of the side frame to 300 ft. lbs.
If blade gap adjustment is required for the center of the shear, use the stiffener adjustment
bolts located at the rear of the stiffener.
To close the gap in the center of the shear, loosen one inside bolt and tighten the outside bolt.
When correct blade clearance is achieved, tighten the counter locking bolts securely. Recheck
blade gap before cycling the shear.
NOTE: When rotating the blades, clean and lightly oil blade and seat before
installing blade. Tighten blade bolts firmly. Set clearance adjustment to maximum
before overlapping, blades: Follow procedure in section 5.1. When grinding blades,
grind top and bottom of blade only. Shim lower blade, flush with bed top surface.
Clean and lightly oil blade and seat. Tighten blade bolts firmly; again, set clearance
to maximum before adjusting to avoid damage to blades; proceed as directed in
section 5.1.

Piranha ¼-12 Operators/Owner’s Manual

6. Maintenance Procedures
BEFORE MAINTAINING OR REPAIRING THE SHEAR, READ AND UNDERSTAND
THE CURRENT ANSI B11.4 STANDARD.
This section describes the procedures and requirements for maintaining and repairing the major
components of the Piranha 1/4-12 Shear.

6.1. Maintenance Schedule
This section outlines the suggested points and intervals for regular scheduled maintenance.
The hydraulic power unit is very sensitive to dirt and other contaminants, but will provide
many years of reliable service with a minimum amount of service. The operating temperature
and the cleanliness of the oil directly effect the life of the hydraulic oil. Regular oil and filter
changes will keep the system clean and free of sticking and clogged valves. Because
hydraulic cylinders are lubricated with every stroke, keeping them clean and free of scratches
and dings that may damage the cylinder rod seals is most important.
The Piranha 1/4-12 Shear is shipped with an extra hydraulic oil filter. It is important that after
the first forty hours of operation the oil filter be replaced. Upon using the included extra oil
filter it is suggested that a replacement filter be ordered for the next scheduled filter change.
See parts list for correct filter part number.
1. After First 40 hours:
• Change hydraulic filter
• Check fluid level
• Check gib clearances
• Grease ram slides
• Check fittings, bolts, nuts for tightness
2. Every 40 hours (weekly) thereafter:
• Grease ram slides.
• Check fittings, bolts, nuts for tightness
3. Every 3 months:
• Change hydraulic filter
The hydraulic filter element should be changed every 3 months depending on
workload and environmental conditions. See repair parts section for re-ordering
instructions and part numbers.
• Check hydraulic fluid level
• Check machine level & gib clearances
4. Every Year:
• Grease electric motor
• Check machine level
5. Every Two (2) years:
• Change hydraulic fluid

Piranha ¼-12 Operators/Owner’s Manual

6.2. Hydraulic Power Unit
The hydraulic power unit is a sophisticated and complex system. Only trained personnel
should attempt to perform adjustment procedures on the unit. The power unit generates very
high pressures. Never check for leaks using hands.
Before servicing the hydraulic system, block the ram and turn power off.

6.2.1. Oil Filter Replacement
Verify the exact element number prior to ordering the replacement element.

Figure 6: Oil Filter Assembly Exploded View
Item
1
2
3
4

Description
Filter Body
Filter Element
Fitting - inlet
Filter Bowl
Table 1: Oil Filter Assembly Descriptions

The following steps represent a typical filter element replacement.
1. Insure the main electric power is locked out at the safety
disconnect.
2. Place a small container (½-gallon) under the filter bowl.
3. Remove the filter bowl by turning in a counterclockwise
direction.
4. Remove the filter element by pulling and turning at the same
time.
5. Lubricate the O-ring on the new filter with hydraulic oil and slide
into place.
6. Wipe the inside of the filter element bowl and replace.
When changing the hydraulic oil, a new oil filter should also be installed.
30

Piranha ¼-12 Operators/Owner’s Manual

7. Hydraulic & Electrical Schematics
7.1. Electrical Schematic-Programmable CNC

Figure 7: Electrical Diagram 1 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure 8: Electrical Diagram 2 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure 9 Electrical Diagram 3 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure 10: Electrical Diagram 4 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure 11 Electrical Diagram 5 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure 12: Electrical Diagram 6 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure 13: Electrical Diagram 7 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure: 14: Electrical Diagram 8 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure: 15: Electrical Diagram 9 of 10

Piranha ¼-12 Operators/Owner’s Manual

Figure: 16: Electrical Diagram 10 of 10

Piranha ¼-12 Operators/Owner’s Manual

Electrical Component List - Programmable CNC
FIG

DESCRIPTION

QTY

VOLTAGE

PART #

1
2
2
2
2
3
4
5
5
5
5
6
6
6
6
7
8
8
8
9
10
10
10
10
11
12
13
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
FIG

Transformer 208/230/460/575 Volt
Transformer Primary Fuse F4-F5
Transformer Primary Fuse F4-F5
Transformer Primary Fuse F4-F5
Transformer Primary Fuse F4-F5
Transformer Primary/Secondary Fuse Holder
Transformer Secondary Fuse F10-F11 Servo
Fuse, Motor Short Circuit Protection AJT-90
Fuse, Motor Short Circuit Protection AJT-80
Fuse, Motor Short Circuit Protection AJT-40
Fuse, Motor Short Circuit Protection AJT-30
Fuse Holder, "
"
"
208 Volt
Fuse Holder, "
"
"
230 Volt
Fuse Holder, "
"
"
460 Volt
Fuse Holder, "
"
"
575 Volt
Fuse Holder, Control Circuits
Fuse, Control Circuits
F7
Fuse, Control Circuits
F8
Fuse, Control Circuits
F9
Starter, Motor
Starter Overload Heaters
CC-103
Starter Overload Heaters
CC-87.7
Starter Overload Heaters
CC-39.6
Starter Overload Heaters
CC-33.0
Starter Aux Contact
Starter Overload Reset Button
Starter Overload Reset Button Shaft
Disconnect Operator
Disconnect
Disconnect Shaft
Stop Button, Red Extd.
Stop Button, Contact Block W/Base, NC
Start Button, Green Flush
Start Button Contact Block W/Base, NO
E Stop Button
E Stop Button Contact Block W/Base N/C
Up Button - Yellow
Up Button Contact Block W/Base, NO
Shadow Light Selecta Switch
2 Pos
Shadow Light Selecta Contact Block W/Base, NO
Mode Selecta Switch
3 Pos
Mode Selecta, Contact Block W/Base
NO
Mode Selecta, Contact Block
N/O
DESCRIPTION

1
2
2
2
2
2
2
3
3
3
3
1
1
1
1
3
1
1
1
1
3
3
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
QTY

208 - 575 Volt
208 Volt
230 Volt
460 Volt
575 Volt

T1868
T0770
T0770
T1138
T1138
T1866
T1867
T0781
T0780
T0777
T1869
T0784
T0784
T0784
T0784
T0733
T0734
T0736
T1870
T0729
T0786
T0788
T0785
T0787
T1303
531686
5316861
531604
531602
T0727
5316111
5316121
5316101
531696
T0737
5316121
T1668
531696
531695
531696
5316451
531696
5316781
PART #

208 Volt
230 Volt
460 Volt
575 Volt
208 Volt
230 Volt
460 Volt
575 Volt
8 Amp
5 Amp
3 Amp
208 Volt
230 Volt
460 Volt
575 Volt

VOLTAGE

Piranha ¼-12 Operators/Owner’s Manual

30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.

Mode Selecta, Contact Block
N/C
Potentiometer, Stroke Control, 2 K 2 Watt
Potentiometer, Top Stroke Trimmer
5K
Potentiometer, Bottom Stroke Trimmer 10K
Potentiometer, Knob
Potentiometer, Linear Stroke Control
Fan
Fan Grills, Filter
Prox, Top - N/O
Prox, Bottom - N/C
Suppressor, Motor
Foot Switch Recp
Foot Switch
Servo Amp
Servo Amp Regen Module
Servo Amp Motor
Resistor
150 OHM 5 Watt
Relay Socket
Relay Socket Clips
Relay, 120Vac 4 Pole, Silver Flashed
Hyd. Valve Din Cables
A/C
Suppressor, Mov
Shadow Lamps
PLC, CPU Base
PLC, Power Supply
PLC,Relay Module
PLC,Motion Module
PLC,Aux.Term,Block
Eason
Eason, E-Prom -Programmed
PLC, EE Prom
Suppressor, A/C Line Filter
Relay - Solid State
Toggle Switch
Timer - 5 Sec.
Timer Socket - 8 Pin Octal
Shadow Light Sockets - Double Contact
Diode, Zener - 10 Volt 5 Watt
Decal, Control Legend
Decal, Elect. Enclosure
Servo Motor Harness
AC Harness (parts within the harness include)
Backgauge Harness Assembly, PLC
Linear Pot Harness
Prox Switch Assembly

2
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
4
8
4
2
2
8
1
1
1
1
1
1
1
1
1
1
1
1
1
8
1
1
1

591596
T1871
T1414
T1678
T0762
T1252
T0726
T0725
T1674
T1675
591604
531618
T0748
T0927
T0927
T0926
591629
T1306
T1304
T0739
591531
591619
T0467-1
5916073
5916072
T0924
T0925
T0930
T0933
T1775 Rev#
T1774 Rev#
T1861
T1862
531619
T1863
T1864
T0466
10 Volt 5 Watt T1865
T1251
T1848
T1465
T1464
T1459
T1463
T1667

Piranha ¼-12 Operators/Owner’s Manual

7.1.1. Electrical Schematic – Programmable GOTO
15HP
VOLT J 60 AMP
VOLT J 60 AMP
VOLT CC 30 AMP
VOLT CC 25 AMP

208
230
460
575
L1

20HP
J 90 AMP
J 80 AMP
J 40 AMP
J35 AMP

M1
HYD MOTOR
15 OR 20 HP
3/0

0/L

F3
HEATERS

F4 & F5
208
230
460
575

EQUIPMENT
GROUND

VOLT
VOLT
VOLT
VOLT

1KVA
CC8
CC7
CC4
CC4

312

5 AMP

E STOP

START

313

OPTIONAL
SHADOW LIGHTS

M1
AUX
6

TO PC BACK
GUAGE BOARD
TERM.# LINE

7
4

M1
AUX

TOP

TOP
COM

N/O
HELD
CLOSED
AT
TOP

M1
O/L

F8
8 AMP

CC103
CC87.7
CC39.6
CC33.3

B70
B70
B32
B25

MOV

3 AMP
F7

20 HP

VOLT
VOLT
VOLT
VOLT

WHITE

3
M1
AUX

312

15HP
208
230
460
575

20 HP A/C
UP
SOL

11
NOTE*

JOG
SINGLE
4

BLK

2GRN

DI
C

OOX

XOO S

FOOT
SWITCH
WHT 12
1+
1RED

CONT

OXO J

SINGLE
CYCLE

DI
XOO S

T
XOO S

SC
12
18
BACK GUAGE
ENABLE

DI
19

13
RLY1

20HP A/C
DOWN
SOL

SC
20

RLY2

NOTE*

BYPASS
DIRECTION

B
4

DI
BOTTOM

B
W

BOTTOM
LIMIT
COM
N/C

NOTE*

PIRANHA

15 HP OPTION ARE D/C RECTIFIED HYD. DIN CONNECTORS

Figure: 17: Electrical Diagram 1 of 4

TITLE
DRAWING
DATE
REV.#
DRAWN BY
PAGE#

BASE SHEAR GOTO B/G
T1970_1
8-15-01
BOB RILEY
1 OF 4

Piranha ¼-12 Operators/Owner’s Manual

26
REAR
BACK GUAGE
LIMIT

ENCODER

REAR LIMIT

COM
26

N/C
FRONT
BACK GUAGE
LIMIT
COM
N/C

COMMON

6
5
RJ11
TERMINAL 4
3
P3
2
1

FRONT LIMIT

DRAIN
GRND
INDEX
+5 VOLTS
B CHANNEL
A CHANNEL

BLK
GRN
RED
BRN
WHT

T
29

PIN # 1
# 2
# 3
# 4
# 5

RETRACT

HL1M

GROUND
INDEX
A CHANNEL
+5VDC
B CHANNEL

BACK GUAGE PC BOARD
REF
PAGE 1

REF
PAGE 1

GRN

REF
PAGE 1

RLY1

RLY2

GRND

LINE

REF
PAGE 1

NEUTRAL

MOT1
BACK GUAGE
MOTOR
90V
D/C

MOT2

8
25
TRAIC
TECCOR Q6040P

PIRANHA
TITLE
BASE SHEAR GOTO B/G
T1970_2
DRAWING
8-15-01
DATE
REV.#
BOB
RILEY
DRAWN BY
2 OF 4
PAGE#

Figure: 18: Electrical Diagram 2 of 4

Piranha ¼-12 Operators/Owner’s Manual

BACK PLATE

RIGHT SIDE
43
20

17
4

11
T
12

B
5
SC
39

DI
8

13
44

PIRANHA
TITLE

T1970_3

DATE

8-15-01

REV#

Figure: 19: Electrical Diagram 3 of 4

BASE SHEAR GOTO B/G

DRAWING

DRAWN BY

BOB RILEY

PAGE#

3 OF 4

Piranha ¼-12 Operators/Owner’s Manual

FRONT VIEW OF ELECTRICAL ENCLOSURE
24

21
ON
OFF

FOOT SWITCH
41
40

VIEW OF CONTROL ENCLOSURE
45
25

FRONT VIEW OF DOOR
UP

INTERIOR VIEW OF DOOR
26

MODE

START

E STOP

IN
MM

CAL

STOP

START
37

CLR GO

PIRANHA
TITLE
DRAWING
DATE
REV#

8-15-01

DRAWN BY

BOB RILEY

PAGE#

4 OF 4

Figure: 20: Electrical Diagram 4 of 4

BASE SHEAR GOTO B/G
T1970_4

Piranha ¼-12 Operators/Owner’s Manual

Electrical Component List – Programmable GOTO
FIG
1
1
2
3
3
3
3
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
6
6
6
6
7
8
8
8
9
10
10
10
11
12
13
14
15
16
17
FIG

DESCRIPTION
DISCONNECT
20HP
DISCONNECT
15HP
DISCONNECT SHAFT
FUSES, MOTOR SHORT CIRCUIT
15HP
FUSES, MOTOR SHORT CIRCUIT
15HP
FUSES, MOTOR SHORT CIRCUIT
15HP
FUSES, MOTOR SHORT CIRCUIT
15HP
FUSES, MOTOR SHORT CIRCUIT
20HP
FUSES, MOTOR SHORT CIRCUIT
20HP
FUSES, MOTOR SHORT CIRCUIT
20HP
FUSES, MOTOR SHORT CIRCUIT
20HP
FUSE BLOCK, SHORT CIRCUIT 15HP
FUSE BLOCK, SHORT CIRCUIT 15HP
FUSE BLOCK, SHORT CIRCUIT 15HP
FUSE BLOCK, SHORT CIRCUIT
20hP
STARTER, M1
20HP
STARTER, M1
15HP
STARTER, M1
20HP
STARTER, M1
20HP
HEATERS, M1 OVERLOAD
15HP B70
HEATERS, M1 OVERLOAD
15HP B70
HEATERS, M1 OVERLOAD
15HP B32
HEATERS, M1 OVERLOAD
15HP B25
HEATERS, M1 OVERLOAD
20HP CC103
HEATERS, M1 OVERLOAD
20HP CC87.7
HEATERS, M1 OVERLOAD
20HP CC39.6
HEATERS, M1 OVERLOAD
20HP CC33.0
SUPPRESSOR, MOTOR M1
TRANSFORMER
TRANSFORMER
TRANSFORMER
FUSE HOLDER, TRANSFORMER PRIMARY
FUSE, TRANSFORMER PRIMARY
FUSE, TRANSFORMER PRIMARY
FUSE, TRANSFORMER PRIMARY
RELAY, 4 POLE 120V A/C
RELAY SOCKETS
TRIAC, D/C BACK GAUGE MOTOR
PRINTED CIRCUIT BOARD, BACK GAUGE
FUSE HOLDER, PANEL MOUNT
FUSE, CONTROL CIRCUIT
FUSE, SHADOW LIGHT
DESCRIPTION

FUSE, BACK GAUGE CIRCUIT

QTY
1
1
1
3
3
3
3
3
3
3
3
1
1
1
1
1
1
1
1
3
3
3
3
3
3
3
3
1
1
1
1
1
3
3
3
4
4
1
1
3
1
1
QTY

VOLTAGE
208/230
480/575
ALL
208
230
460
575
208
230
460
575
208/230
460/575
208/230
460/575
208/230
460/575
208/230
460/575
208
230
460
575
208
230
460
575
ALL
208
230/460
575
ALL
208
230
460/575
ALL
ALL
ALL
ALL
ALL
ALL
ALL
VOLTAGE

ALL

PART #
0591602
0531605
T0727
T0779
T0779
T0775
T0774
T0781
T0780
T0777
T2256
T0782
T0783
T0784
T0782
0541641
0531641
T0729
T2257
0541642
0541642
0541643
0521616
T0786
T0788
0531638
T2258
0501604
T2244
T2245
T2246
T1302
T2247
T2248
T2249
T0739
T1306
T2250
T2114
T0733
T0736
T2251
PART #
T2252

Piranha ¼-12 Operators/Owner’s Manual
20
21
22
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

43
44
45

DECAL, CONTROL FUSES
DISCONNECT OPERATOR
RESET BUTTON W/ SHAFT
DECAL, MOTOR SHORT CIRCUIT/TRANSFORMER
BACK GAUGE DISPLAY MODULE
KEYPAD, BACKGAUGE
SELECTA SWITCH, 3 POS,MODE
EMEG. STOP OPERATOR, RED MUSHROOM
PUSH BUTTON OPERATOR, YELLOW EXTED.
PUSH BUTTON OPERATOR, GREEN FLUSH
CONTACT BLOCK W/ BASE 1N/O
CONTACT BLOCK 1 N/O
CONTACT BLOCK 1 N/C
CONTACT BLOCK W/ BASE 1N/O
CONTACT BLOCK 1 N/C
CONTACT BLOCK W/ BASE 1 N/C
CONTACT BLOCK W/BASE 1 N/O
STARTER AUX. CONTACT, 1 N/O
STARTER AUX. CONTACT, 2 N/O
FOOT SWITCH
FOOT SWITCH PLUG
FOOT SWITCH RECP.
SHADOW LIGHT LAMPS
SHADOW LIGHT LAMP SOCKETS
TOGGLE SWITCH
SUPPRESSOR, MOV
DECAL, CONTROL PANEL
RECTIFIED HYD. PLUGS
ENCODER

1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
8
8
1
2
1
2
1

ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL
ALL

T2200
0531604
0531686-1
T2201
T2113
T2018
T1670-1
T0737-1
T1668-1
05316101-1
0531696-1
05316781-1
0591596-1
0531696-1
0591596-1
05316121-1
0531696-1
T01303
T2253
T0748
0531617
0531618
T0467-1
T0466
0531619
0591619
T1964
0531529
T2159

Piranha ¼-12 Operators/Owner’s Manual

7.2. Hydraulic Schematic- 20 HP Motor

Figure 21: Hydraulic Diagram 1 of 1

Piranha ¼-12 Operators/Owner’s Manual

7.2.1. Hydraulic Schematic-15 HP Motor

Figure: 22: Hydraulic Schematic 1 of 1

Piranha ¼-12 Operators/Owner’s Manual

8. Parts
Diagrams are provided for the major assemblies of the shear. The accompanying parts lists
provide item references and descriptions. Part numbers and quantities are provided only where
applicable.
Repair parts are available for the Piranha 1/4-10 Shear from the manufacturer. Always provide the
model and complete serial number of the press brake along with the part number description and
quantity of the desired parts.

8.1. Finger Guard & Hold downs

Figure 23: Finger Guard
Item
1
2
*3
*3
*3
3
4

Description
Finger Guard Mounting Bolts
Hold Down Mounting Bolts
Hold Down Cylinder
Hold Down Cylinder-LHS
Hold Down Cylinder-RHS
Hold Down Cylinder (STD)
Finger Guard

Supplied with “Enhancement Package”

Part #

Qty.

T2606
T2607
T2608
T0425
T3344

26
11
1
1
13
1

Piranha ¼-12 Operators/Owner’s Manual

8.2. Ram & Linkage

Figure 24: Ram & Linkage
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

Qty.
1
1
2
2
2
1
2
4
4
1
1
1
2
2
2
1
1
1

Description
Cylinder Pin
Cylinder Lever Pin
Fiberglide Liner 1.5 x 2.5
C-Rod Pin
Fiberglide Liner 1.75 x 2
Main Hinge Pin
Fiberglide Liner 3 x 2.5
Link Pin
Fiberglide Liner
C-Rod
Lever, Long
Lever, Short
Link
Link
Fiberglide Liner 1.5 x 2.5
Hydraulic Cylinder
Ram
Bed

Part #
T2460-1
T2456
T270
T2457
T271
T2458
T273
T8212
T272
T3276-1
T2652
T2648
T8214
T8214
T270
T0603-1
T32821-1
T3360(Base)
T3281(EHP)

Piranha ¼-12 Operators/Owner’s Manual

8.3. Back Gauge Assembly-Programmable CNC

Figure 25: Back Gauge Assembly
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

Description
Back Gauge Track
Back Stop-Machined
Timing Belt Sprocket
Bushing, 5/8” Bore
Motor Mount Bracket
Motor / Encoder Assembly
Timing Belt

T33551
T457-10
T469
T0625

Qty.
2
1
1
1
1

T468

T2172
T0698

1
2

Sensor Bracket Assembly
Prox Switch
5/8” Taper Nut Assembly

T14-925
T04085
T1242

1
1
1

Traveling Arm
Servo Motor Guard

T0592
T22204

1
1

Transmission Shaft
Bearing, Pillow Block, 5/8” Cast Housing

Part #

Piranha ¼-12 Operators/Owner’s Manual

8.3.1. Back Gauge Assembly Programmable GOTO

FIG #

25A

Chain Drive

25D

Encoder Assy

Front Power Cut Off Back Gauge Limit Switch
Rear Power Cut Off Back Gauge Limit Switch

25B

25E

Chain Tension Idler Assy
Back Gauge Drag Block Adjustment Nut

25C

25F

Back Gauge Drag Block

Back Gauge Lead Screw Spanner Nut

Piranha ¼-12 Operators/Owner’s Manual

8.4. Back Gauge & Bar Adjustment

Figure 26: Back Gauge & Bar Adjustment
Item
1
2
3

Qty.
3
2
8

Description
Back Stop Straightener Assy
Back Stop Machined ¼-12
1” –14 NF ND Hex Nut GR8

8.5.

Part #
T33551
0531260

Piranha ¼-12 Operators/Owner’s Manual

8.6. Bed Components

Figure 27: Bed Components
Item
1
2
2
3
4
5

Qty.
4
4
4
6
1
1

Description
Bed Adjustment Bolts
¾” x 2 SHCS
¾” Lock Washer
½” x 1-1/4” SHCS
Control End Scale 72 (2-Pcs)
Far End Scale 24”

Part #
T0469
0591601
0531314
0531081
T0504
T1196

Piranha ¼-12 Operators/Owner’s Manual

8.7. Hydraulic Assemblies-20 HP Motor

Figure 28: Hydraulic Power Unit
Item
1
2

3
4
5
6
7
7
8
8
9
10

Description
Part #
Qty.
Motor Power Harness
T04088
1
Motor
20 HP - 220/440 Volt
0571660
1
20 HP – 440 Volt
0571662
1
20 HP – 575 Volt
0571665
1
Pump
05915701
1
Hose, Filter Valve Pack P
T1065
1
Fitting, Filter Outlet
0531538
1
Filter Assembly
0591550
1
Fitting, Inlet Filter 6400-12-12
0551211
1
Fitting, Outlet /Pump 6400-12-16
0591506
1
Fitting, Inlet Pump 6400-16
R539504
1
Suction Tube
T0434
1
Fitting, P Port 6801-12
0531531
1
Valvepack
T0271-1
1
Table 2: Hydraulic Power Unit Descriptions

Piranha ¼-12 Operators/Owner’s Manual

8.7.1. Hydraulic Assemblies-15 HP Motor

Piranha ¼-12 Operators/Owner’s Manual

Figure 29: Hydraulic Fittings
Figure-Item
1
2
3
4
5
6
7
8

Description
Pump Adapter
Filter Assembly
Fitting A-Port 6802-10
Hose A-Port to Cylinder 34” #10
Cylinder
Hose, B-Port to Cylinder 19” #12
Fitting, Cylinder B-Port 6400-12
2-Bolt Flange

Part #
0551571
0591550
0531509
T0433
T0603-1
T0029
R639576
T0029

Piranha ¼-12 Operators/Owner’s Manual

8.7.2. Valve Body Assembly 20 HP

Figure 30: Valve Body Assembly Top View

Figure 31: Valve Body Assembly Front View

Piranha ¼-12 Operators/Owner’s Manual

Figure 32: Valve Body Assembly Left Side View
Item
1
2
3
4
5
6
7
8
*9
*10
11
13

Qty.
1
1
1
1
2
1
1
2
4
1
1
1 set of 4
1

Description
Valve Pack Body
PO Relief Valve RPEC-LAN
Vented CB Valve CAE-LHN
Check Valve PTO CKGB-XCN
Check Valve CXDA-XAN
Check Valve CXED-XCN
Directional Control Valve
Directional Control Valve Coils
¼”-20 x 1-3/4” SHCS
Reducing Valve PBDB-LAN-EBP
Valve, Flow D03 Sandwich
M5 x 140 SHCS
CB Valve CAEA-LHN

* Optional

Cartridge
T1016
T1067
T1069
T0232
T1070
T1071
T1072
n/a
0581145
T1273
n/a
T1076
T0231

Coil
n/a
n/a
n/a
n/a
n/a
n/a
n/a
0571586
n/a
n/a
n/a
n/a
n/a

Seal Kit
n/a
T1079
T0866
T0869
T1079
T0867
T1081
n/a
n/a
T0870
T1079
n/a
T0866

Piranha ¼-12 Operators/Owner’s Manual

Item

Qty.

1
2
3
4
5
6
7

1
1
1
1
2
1
1
2
4

8
9
10
11
13

Description

Cartridge

Valve Pack Body
PO Relief Valve RPEC-LAN
Vented CB Valve CAE-LHN
Check Valve PTO CKGB-XCN
Check Valve CXDA-XAN
Check Valve CXED-XCN
Directional Control Valve
Directional Control Valve Coils
¼”-20 x 1-3/4” SHCS

T1067
T1069
T0232
T1070
0531574
0581145
n/a

1 set of 4 M5 x 140 SHCS
1
CB Valve CAEA-LHN

T0231

Coil

Seal Kit

n/a
n/a
n/a
n/a
n/a
n/a
n/a
0531583
n/a
n/a
n/a
n/a
n/a

n/a
T1079
T0866
T0869
T1079
T0873
n/a
n/a

n/a
T0866

Piranha ¼-12 Operators/Owner’s Manual

8.8. Oil Filter Assembly

Figure 33: Oil Filter Assembly (PN-0591550) Exploded View
Figure-Item
1
2

Description
Filter Element
Fitting – inlet

Part #
0591551
T0913

Piranha ¼-12 Operators/Owner’s Manual

8.9. Main Operator Control Panel-Programmable CNC
Refer to Section 7 for detailed electrical component list

Piranha ¼-12 Operators/Owner’s Manual

8.10.

Blade Adjust Components

Figure 34: Blade Adjust Components
Item
1
2
3
4
5
6
7
6
9
10
11
12
13

Description
¼-12 Ram
Gib Supports
3/8”-16 SSS 2-1/4” Flat Point
3/8”-16 FIN Hex Nut Plain
¼-12 Knife 12’ Shear
¼-12 Shear Knife Bolt (Ram)
¼-12 Shear Knife Nut
¼-12 Shear Knife Bolt (Table)
Blade Straightness Adjustment Nut
Ram Tension Nut
Bed Locking Bolts
Blade Clearance Adjustment Bolts
Bed Locking Bolts

Qty
1
2

2
16
32
16

Part Number
T32821-1
T9850
T0078
0531210
T3283
T0456
T055
T1405

Piranha ¼-12 Operators/Owner’s Manual

8.11.

Ram Slides

Figure 35: Gib Parts
Item
1
1
2
2
3
4
4
5
5
6
6
7
8
8

Description
Elbow
Lubrication Fitting
Slide Bearing Phenolic
Slide Bearing
3/8” x 2-1/4” SSS Flat Point
Shadow Line Adjustment Screw
Shadow Line Adjustment Nut
3/8” Hex Nut
3/8” x 1-3/4” SSS Flat Point
Tie Bar Left
Tie Bar Right
Gibs
Slide Left
Slide Right

Part #
T0445
T0446
T0398
T0397
T0078
T0319
0581198
0531210
0581121
T03171
T03161
T9850
T5828
T5637

Qty
2
2
4
4
14
1
1
28
14
1
1
1
1
1

Piranha ¼-12 Operators/Owner’s Manual

8.12.

Back Gauge Motor Assembly

Figure 36: Back Gauge Motor Assembly
Item
1
2

Description
Servo Motor
Servomotor Harness

Part #

Qty

T0567
T04087

1
1

Piranha ¼-12 Operators/Owner’s Manual
This page is intentionally left blank.

Piranha ¼-12 Operators/Owner’s Manual

9. Glossary
AC Motor

An electric motor designed to operate using
AC power.

Accuracy

The deviation of a value from its theoretical
value after the device has been correctly
calibrated.

Ambient Condition

The surrounding atmosphere and
environment.

ANSI

American National Standards Institute. A
national, nonprofit organization. Its principle
function is to establish industry-wide
standards that are put in place through a
process of consensus among qualified
participants.

Backlash

Mechanical clearances that exists or may
develop through wear between a driven
component and a drive source.

Ball Bushing/Linear Bearing

A tubular shaped ball bearing assembly
designed for linear movement on a shaft.

Bed
Circuit Breaker

A device used with electrical equipment to
provide overload protection.

Coupling (Shaft)

A mechanical device used to join a motor
output shaft to a machine part, typically a
roller.

Cycle

A series of events or operations that recur
regularly and usually lead back to the start.

Cylinder

A piston-type actuator.

DC Power Supply

An electrical device used to convert incoming
AC power to regulated DC power.

Electrical Spike

An unpredictable and infrequent momentary
high electrical voltage which can harm
electrical/electronic devices.

Encoder

A device typically electromechanical, that
translates motion into electrical pulses. See
also Resolver, Tachometer, or Transducer.

Piranha ¼-12 Operators/Owner’s Manual

Feedback

The return to an input of a part of the output
of a machine or control system, or process.

Fuse

Electrical overload protection device.

Fuse Block

A holder for a fuse or fuses including wire
termination.

Gauge

A stop against which the material or
workpiece is placed to locate it within the
point of operation.

Gibs

The machine members used for guiding the
ram.

Grease zerk

Fitting designed to accept grease for
lubricating components.

Hydraulics

The branch of mechanics, which uses
controlled hydraulic oil flow, and pressure to
provide force to an actuator.

Inertia

A property of matter by which it stays at rest
or in uniform motion in the same straight line
unless acted on by an external force.

Lifting lugs

Steel plates with large holes that are
attached to the press brake to assist in lifting
the machine.

Limit Switch

Typically, an electrical device that provides
position information to a control system.

Low Voltage

A voltage reading that is lower than the
required or expected voltage.

Machinist Square Level

Machinists level having four sides. Permits’
measuring vertical surfaces as well as
horizontal surfaces.

Motor Starter

A relay capable of withstanding inductive
load generated when starting an electric
motor (AC or DC).

Open Loop

A control concept in which feedback is not
used to modify the characteristics of the
output.

Operator Interface

Typically, a control or control panel provided
for an operator to modify or monitor system
variables.

Piranha ¼-12 Operators/Owner’s Manual

Photo Sensor

An electronic sensor that uses light
wavelengths to detect the position or
presence of an object.

Point of Operation

The location in the shear where the material
or a workpiece is positioned and work is
performed.

Pressure Reducer

Typically, a hydraulic component that senses
secondary pressure to maintain that output
pressure regardless of the incoming
pressure.

Pressure Relief

Typically, a hydraulic component that uses a
spring to hold an orifice closed until system
pressure overcomes the spring and allows
flow to the reservoir.

Proximity Sensor

An electrical device capable of detecting the
presence of an object.

PSI

Acronym. Available Force expressed in
Pounds per Square Inch

Pushbutton

A small button or knob actuated by pushing,
provided for operator control, electrical,
pneumatic, or mechanical.

Relay

An electromechanical device for remote or
automatic control that is actuated in variation
of conditions of an electrical circuit and that
operates other devices in an electrical circuit.

Repeatability

The closeness of agreement among multiple
measurements of an output, for the same
value of the measured signal under the same
operating conditions, approaching from the
same direction for full range traverses.

Reset

To restart or arm a control or safety system.

RPM

Acronym. Rotational speed expressed as
Revolutions per Minute.

Safeguarding

A method for protection of personnel from
hazards using guards, safety devices, or safe
work procedures.

Selector Switch

A small button or knob actuated by turning,
provided for operator control, electrical,
pneumatic, or mechanical.

Piranha ¼-12 Operators/Owner’s Manual

Service (Safety) Disconnect

Typically, a large mechanical switch that is
provided to completely remove incoming
power for the purpose of storage or service
of a machine.

Setup

The process of adjusting the press brake and
the installation and adjustment of work
holding devices or tooling and appropriate
safeguarding to ensure proper and safe
operation of the press brake.

Shield (foil or braided)

Typically, a metallic encasement surrounding
wiring or components to avoid interference
from RF signals.

Solenoid Valve

Typically, a pneumatic or hydraulic valve
actuated by an electromagnetic coil.

Throat

An opening or recess in the ram (housing) to
permit the positioning of material or
workpieces.

Transducer

A device typically electromechanical, that
translates motion into electrical pulses.

Transformer

An electrical device that employs the
principle of mutual induction to convert
variations of current in a primary circuit into
variations of voltage and current in a
secondary circuit.

Valve

Any of numerous mechanical devices by
which the flow of liquid, gas, or loose
material in bulk may be started, stopped, or
regulated by a moveable part that opens,
shuts, or partially obstructs one or more ports
or passageways.

Piranha ¼-12 Operators/Owner’s Manual

10.

Index

O
adjusting screws, 10
Anchoring, 9
anchoring hole locations, 9
ANSI, 9

Oil Filter Assembly Descriptions, 18, 31
Oil Filter Replacement, 18
Oil Level & Temperature Sight Gauge, 12
Operator Control, 13

pads, 10
Parts, 23
Placement, 9
Precision Leveling, 11
Press Brake Operation, 15

bed, 9

C
Cleaning, 10

Ram Linkage, 23
Ram Slides, 31
rotational direction, 11; Rotation arrow, 11

Electrical, 11
E-Stop, 14

F
foundation, 9
Fuse Size Chart, 11

S
Safety, 1
sight gauge, 12
Start, 14
steel pads, 10

H
Hydraulic, 12
Hydraulic Assemblies, 24
Hydraulic Power Unit, 18, 24

T
Temperature Sight Gauge, 12
test cycle, 4
Tooling Installation Safety, 4

I
Initial leveling, 10
Installation, 9
Introduction, 7

U
Unpacking, 9

L
Level adjusting screws, 10
Lifting, 9
Lifting Lugs, 9

V
Valve Body Assembly, 26

W
M

Warning Labels, 1
Main Control Panel, 13
Maintenance Procedures, 17
masonry anchors., 9

Warranty, 8

Piranha ¼-12 Operators/Owner’s Manual
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Piranha ¼-12 Operators/Owner’s Manual

11.

Addendums

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Title                           : Microsoft Word - T2613-2 _250-12 Shear_ Manual.doc
Creator                         : rgiesbrecht
Author                          : rgiesbrecht

EXIF Metadata provided by EXIF.tools

T2613 2 _250 12 Shear_ Manual T26132

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