Manual For The 62552 4 In. Air Angle Grinder

User Manual: Manual for the 62552 4 in. Air Angle Grinder 4 in. Air Angle Grinder

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Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly,

operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the
back of the manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference.

REV 14k

Grinding wheel sold separately.
Visit our website at: http://www.harborfreight.com
Email our technical support at: productsupport@harborfreight.com

When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2014 by Harbor Freight Tools®. All rights reserved.
No portion of this manual or any artwork contained herein may be reproduced in
any shape or form without the express written consent of Harbor Freight Tools.
Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein.
Tools required for assembly and service may not be included.

Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.

Table of Contents

Safety

Safetye�������������������������������������������������7
Specifications.......................................
Setup....................................................
Operationa���������������������������������������������

Maintenancei����������������������������������������
Parts List and Diagram.......................14
Warranty.............................................16

WARNING SYMBOLS AND DEFINITIONS
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
Setup

Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.

Operation

IMPORTANT SAFETY INSTRUCTIONS
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
WARNING – When using tools, basic precautions should always be followed, including the following:

Maintenance

General
To reduce the risks of electric shock,
fire, and injury to persons, read all the
instructions before using the tool.

Page 2

For technical questions, please call 1-888-866-5797.

Item 62552

Work Area
3. Keep bystanders, children, and
visitors away while operating the
tool. Distractions are able to result
in the loss of control of the tool.

Safety

1. Keep the work area clean and well
lighted. Cluttered benches and dark
areas increase the risks of electric
shock, fire, and injury to persons.
2. Do not operate the tool in explosive
atmospheres, such as in the presence
of flammable liquids, gases, or dust.
The tool is able to create sparks resulting
in the ignition of the dust or fumes.

Personal Safety

2. Dress properly. Do not wear loose
clothing or jewelry. Contain long
hair. Keep hair, clothing, and gloves
away from moving parts. Loose
clothes, jewelry, or long hair increases
the risk of injury to persons as a result
of being caught in moving parts.
3. Avoid unintentional starting. Be sure
the switch is off before connecting to
the air supply. Do not carry the tool with
your finger on the switch or connect the
tool to the air supply with the switch on.
4. Remove adjusting keys and wrenches
before turning the tool on. A wrench or a
key that is left attached to a rotating part of
the tool increases the risk of personal injury.

Setup

5. Do not overreach.
Keep proper footing and balance at
all times. Proper footing and balance
enables better control of the tool
in unexpected situations.
6.

Use safety equipment.
A dust mask, non‑skid safety
shoes and a hard hat must be
used for the applicable
conditions.

7.

Always wear eye protection.
Wear ANSIapproved safety goggles.

8.

Always wear hearing
protection when using the tool.
Prolonged exposure to high
intensity noise is able to cause
hearing loss.

Operation

1. Stay alert. Watch what you are doing
and use common sense when operating
the tool. Do not use the tool while
tired or under the influence of drugs,
alcohol, or medication. A moment
of inattention while operating the tool
increases the risk of injury to persons.

Tool Use and Care

Item 62552

2. Do not force the tool. Use the correct
tool for the application. The correct tool
will do the job better and safer at the
rate for which the tool is designed.

Maintenance

1. Use clamps or another practical way
to secure and support the workpiece
to a stable platform. Holding the work
by hand or against the body is unstable
and is able to lead to loss of control.

3. Do not use the tool if the switch does
not turn the tool on or off. Any tool
that cannot be controlled with the switch
is dangerous and must be repaired.

For technical questions, please call 1-888-866-5797.

Page 3

Safety

4. Disconnect the tool from the air source
before making any adjustments, changing
accessories, or storing the tool. Such
preventive safety measures reduce the risk
of starting the tool unintentionally. Turn off
and detach the air supply, safely discharge
any residual air pressure, and release
the throttle and/or turn the switch to its off
position before leaving the work area.
5. Store the tool when it is idle out of
reach of children and other untrained
persons. A tool is dangerous in
the hands of untrained users.

Setup

6. Maintain the tool with care. Keep
a cutting tool sharp and clean. A
properly maintained tool, with sharp
cutting edges reduces the risk of
binding and is easier to control.

7. Check for misalignment or binding
of moving parts, breakage of parts,
and any other condition that affects
the tool’s operation. If damaged,
have the tool serviced before using.
Many accidents are caused by poorly
maintained tools. There is a risk of
bursting if the tool is damaged.
8. Use only accessories that are identified
by the manufacturer for the specific
tool model. Use of an accessory not
intended for use with the specific tool model,
increases the risk of injury to persons.
9. Always use proper guard with
grinding wheel. A guard reduces
the risk of injury to persons from
broken wheel fragments.
10. Accessories must be rated for at least
the speed of the tool marked on the
tool label. Wheels and other accessories
running over rated speed can fly apart
and result in a risk of injury to persons.

Service
1. Tool service must be performed only
by qualified repair personnel.

3. Use only the lubricants supplied with the
tool or specified by the manufacturer.

Operation

2. When servicing a tool, use only
identical replacement parts.
Use only authorized parts.

Air Source
1.

Maintenance

Never connect to an air source 2. Never use oxygen, carbon dioxide,
that is capable of exceeding
combustible gases or any bottled
200 psi. Over pressurizing the
gas as an air source for the tool.
tool may cause bursting,
Such gases are capable of explosion
abnormal operation, breakage of the tool or
and serious injury to persons.
serious injury to persons. Use only clean,
dry, regulated compressed air at the rated
pressure or within the rated pressure range
as marked on the tool. Always verify prior to
using the tool that the air source has been
adjusted to the rated air pressure or within
the rated air‑pressure range.

SAVE THESE INSTRUCTIONS.
Page 4

For technical questions, please call 1-888-866-5797.

Item 62552

Symbol

no
.../min

Property or statement

Symbol

Property or statement

No-load speed

NPT

National pipe thread, tapered

Revolutions or reciprocation
per minute

NPS

National pipe thread, straight

PSI

Pounds per square
inch of pressure

ft-lb

Foot-pounds of torque

BPM

Blows per minute

CFM

Cubic Feet per Minute flow

SCFM

Cubic Feet per Minute flow
at standard conditions

WARNING marking
concerning Risk of Eye
Injury. Wear ANSI‑approved
eye protection.
WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.
WARNING marking concerning
Risk of Respiratory Injury.
Wear NIOSH‑approved
dust mask/respirator.

Setup

Symbol Definitions

Safety

Symbols and Specific Safety Instructions

WARNING marking concerning
Risk of Explosion.

depending on how often you do this type
of work. To reduce your exposure to
these chemicals: work in a well ventilated
area, and work with approved safety
equipment, such as those dust masks
that are specially designed to filter out
microscopic particles. (California Health
& Safety Code § 25249.5, et seq.)

2. WARNING: Some dust created by power
sanding, sawing, grinding, drilling, and other
3. WARNING: The brass components of
construction activities, contains chemicals
this product contain lead, a chemical
known to the State of California to cause
known to the State of California to
cancer and birth defects or other reproductive
cause cancer and birth defects or other
harm. Some examples of these chemicals
reproductive harm. (California Health
are:
& Safety Code § 25249.5, et seq.)
• Lead from lead-based paints
• Crystalline silica from bricks and cement or 4. WARNING: This product contains
di (2-ethylhexyl) phthalate (DEHP), a
other masonry products
chemical known to the State of California
• Arsenic and chromium from chemically
to cause cancer and birth defects or other
treated lumber
reproductive harm. (California Health
Your risk from these exposures varies,
& Safety Code § 25249.5, et seq.)

Item 62552

For technical questions, please call 1-888-866-5797.

Page 5

Maintenance

1. The warnings and precautions discussed
in this manual cannot cover all possible
conditions and situations that may occur. It
must be understood by the operator that
common sense and caution are factors
which cannot be built into this product,
but must be supplied by the operator.

Operation

Specific Safety Instructions

5. Only use with accessories rated to
handle the forces exerted by this tool
during operation. Other accessories not
designed for the forces generated may
break and forcefully launch pieces.
Safety

6. Attach all accessories properly to
the tool before connecting the air
supply. A loose accessory may
detach or break during operation.
7. Do not depress the spindle lock when
starting or during operation.

8. Obey the manual for the air compressor
used to power this tool.
9. Install an in-line shutoff valve to allow
immediate control over the air supply in an
emergency, even if a hose is ruptured.
10. Use this tool with both hands only.
Using tools with only one hand
can result in loss of control.
11. Do not lay the tool down until it has come to
a complete stop. Moving parts can grab the
surface and pull the tool out of your control.

Vibration Precautions
Setup

This tool vibrates during use. Repeated or
long-term exposure to vibration may cause
temporary or permanent physical injury,
particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury:

Operation

1. Anyone using vibrating tools regularly or for
an extended period should first be examined
by a doctor and then have regular medical
check-ups to ensure medical problems are
not being caused or worsened from use.
Pregnant women or people who have
impaired blood circulation to the hand, past
hand injuries, nervous system disorders,
diabetes, or Raynaud’s Disease should
not use this tool. If you feel any symptoms
related to vibration (such as tingling,
numbness, and white or blue fingers),
seek medical advice as soon as possible.

2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration
when there is a choice.
5. Include vibration-free periods
each day of work.
6. Grip tool as lightly as possible
(while still keeping safe control of it).
Let the tool do the work.
7. To reduce vibration, maintain
tool as explained in this manual.
If abnormal vibration occurs, stop immediately.

SAVE THESE INSTRUCTIONS.

Maintenance
Page 6

For technical questions, please call 1-888-866-5797.

Item 62552

Functional Description

90 PSI

Air Inlet

1/4″ -18 NPT

Rated Speed*

10,000 RPM

Average Air Consumption

6 CFM @ 90 PSI

Arbor Capacity

5/8″

Grinding Wheel

4″ Diameter x 1/4″ Thick
(Sold Separately)
Setup

* Rated speed at stated maximum air pressure. Excess air pressure is
hazardous and may cause the tool to exceed stated rated speed.

Components and Controls

Handle

Throttle

Grinding Wheel
(sold separately)

Operation

Maximum Air Pressure

Safety

Specifications

Safety Switch

Item 62552

For technical questions, please call 1-888-866-5797.

Maintenance

Guard

Page 7

Initial Tool Set Up/Assembly

Safety

Read the ENTIRE IMPORTANT SAFETY INFORMATION section
at the beginning of this manual including all text under
subheadings therein before set up or use of this product.
Note: For additional information regarding the parts listed in the following
pages, refer to the Assembly Diagram near the end of this manual.
Note: This air tool may be shipped with a protective plug covering
the air inlet. Remove this plug before set up.

Air Supply

Setup

TO PREVENT SERIOUS INJURY FROM EXPLOSION:
Use only clean, dry, regulated, compressed air to power this tool.
Do not use oxygen, carbon dioxide, combustible gases,
or any other bottled gas as a power source for this tool.
1. Incorporate a filter, regulator with pressure
gauge, oiler, in-line shutoff valve, and quick
coupler for best service, as shown on
Figure A and Figure B on page 9.
An in‑line shutoff ball valve
is an important safety device
because it controls the air supply
even if the air hose is ruptured.
The shutoff valve should be a ball valve
because it can be closed quickly.

Operation

Note: If an automatic oiler system is not used,
add a few drops of Pneumatic Tool Oil to the
airline connection before operation.
Add a few more drops after each
hour of continual use.
2. Attach an air hose to the
compressor's air outlet. Connect the
air hose to the air inlet of the tool.
Other components, such as a coupler plug
and quick coupler, will make operation
more efficient, but are not required.

3. Turn the tool's throttle or switch to
the off position; refer to Operation
section for description of controls.
4. Close the in-line shutoff valve between
the compressor and the tool.
5. Turn on the air compressor according to
the manufacturer's directions and allow it
to build up pressure until it cycles off.
6. Adjust the air compressor's output
regulator so that the air output is enough
to properly power the tool, but the output
will not exceed the tool's maximum air
pressure at any time. Adjust the pressure
gradually, while checking the air output
gauge to set the right pressure range.
7. Inspect the air connections for leaks.
Repair any leaks found.

Maintenance

8. If the tool will not be used at this time, turn off
and detach the air supply, safely discharge
any residual air pressure, and release
the throttle and/or turn the switch to its off
WARNING! TO PREVENT SERIOUS INJURY
position to prevent accidental operation.
FROM ACCIDENTAL OPERATION:
Do not install a female quick coupler
9. Residual air pressure should not be
on the tool. Such a coupler contains
present after the tool is disconnected
an air valve that will allow the air tool to
from the air supply. However, it is a
retain pressure and operate accidentally
good safety measure to attempt to
after the air supply is disconnected.
discharge the tool in a safe fashion after
Note: Air flow, and therefore tool performance,
can be hindered by undersized air
supply components. The air hose must be long
enough to reach the work area with enough extra
length to allow free movement while working.
Page 8

disconnecting to ensure that the tool
is disconnected and not powered.

For technical questions, please call 1-888-866-5797.

Item 62552

Figure A: Portable Air Supply Setup

B

Lubricated
Tools

C

D

A

F

E

Safety

A

Non-lubricated
Tools

Air Hose
Filter
Regulator
Lubricator (optional)
Coupler and Plug
Leader Hose (optional)
Air Cleaner / Dryer (optional)
Air Adjusting Valve (optional)

B

G

H

A
Function

Connects air to tool
Prevents dirt and condensation from damaging tool or workpiece
Adjusts air pressure to tool
For air tool lubrication
Provides quick connection and release
Increases coupler life
Prevents water vapor from damaging workpiece
For fine tuning airflow at tool

Setup

A
B
C
D
E
F
G
H

Description

E

C

Figure B: Stationary Air Supply Setup
Slope

G

C

J

K

L

H

M

F

E

Operation

C D

Lubricated
Tools

I
I

B
A
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O

Item 62552

F
Description

Vibration Pads
Anchor Bolts
Ball Valve
Isolation Hose
Main Air Line - 3/4″ minimum
Ball Valve
Branch Air Line -1/2″ minimum
Air Hose
Filter
Regulator
Lubricator (optional)
Coupler and Plug
Leader Hose (optional)
Air Cleaner / Dryer (optional)
Air Adjusting Valve (optional)

C
F

L

J

O

H

Non-lubricated Tools

Function

For noise and vibration reduction
Secures air compressor in place
Isolates sections of system for maintenance
For vibration reduction
Distributes air to branch lines
To drain moisture from system
Brings air to point of use
Connects air to tool
Prevents dirt and condensation from damaging tool or workpiece
Adjusts air pressure to tool
For air tool lubrication
Provides quick connection and release
Increases coupler life
Prevents water vapor from damaging workpiece
For fine tuning airflow at tool

For technical questions, please call 1-888-866-5797.

Maintenance

B
A

N

Page 9

Operating Instructions

Safety

Read the ENTIRE IMPORTANT SAFETY INFORMATION section
at the beginning of this manual including all text under
subheadings therein before set up or use of this product.
Inspect tool before use, looking for damaged, loose, and missing parts.
If any problems are found, do not use tool until repaired.

Tool Set Up

Setup

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Turn off the tool, detach the air supply, safely discharge any residual air pressure
in the tool, and release the throttle and/or turn the switch to its off position
before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY:
Do not adjust or tamper with any control or component in a way not specifically explained
within this manual. Improper adjustment can result in tool failure or other serious hazards.
1. Fit the Spindle Wrench around the
Spindle and hold in place to prevent
the Spindle from spinning.
2. Insert the two prongs on the Flange Wrench
into the Flange and unscrew it.
3. Slide the grinding wheel onto the Shaft.

4. Replace the Flange and tighten
it using the Wrenches.
DANGER! Grinding wheel used must
be rated at 10,000 RPM or higher.
5. Screw the Handle into the threaded hole
on the side of the Gear Housing.

Operation

Workpiece and Work Area Set Up
1. Designate a work area that is clean
and well‑lit. The work area must not
allow access by children or pets to
prevent distraction and injury.

Maintenance

2. Route the air hose along a safe route
to reach the work area without creating
a tripping hazard or exposing the hose
to possible damage. The hose must
be long enough to reach the work
area with enough extra length to allow
free movement while working.

Page 10

3. Secure loose workpieces using a
vise or clamps (not included) to
prevent movement while working.
4. There must not be hazardous objects
(such as utility lines or foreign objects) nearby
that will present a hazard while working.

For technical questions, please call 1-888-866-5797.

Item 62552

2. Grip the Handle with your left hand and
the Housing with your right hand.
3. Slide the Safety switch up and depress
the Throttle to turn the tool on.
4. Allow the motor to reach its full speed
before grinding. Make sure the
grinding wheel is rotating evenly and
all parts appear to be working properly.
Maintain a firm grip with both hands.

CAUTION! TO PREVENT INJURY FROM
TOOL OR ACCESSORY FAILURE:
Do not exceed the tool's
maximum air pressure rating.
If the tool still does not have sufficient force
at maximum pressure and sufficient airflow,
then a larger tool may be required.
7. To prevent accidents, turn off the tool,
detach the air supply, safely discharge
any residual air pressure in the tool, and
release the throttle and/or turn the switch
to its off position after use. Clean external
surfaces of the tool with clean, dry cloth, and
apply a thin coat of tool oil. Then store the
tool indoors out of children's reach.

Maintenance

Operation

5. Approach the material at an angle between
15 and 30 degrees to the wheel.
Maintain that angle until finished.
Do not force the wheel or apply too much
pressure. If the wheel slows down, you
are applying too much pressure.

6. If the tool requires more force to accomplish
the task, verify that the tool receives
sufficient, unobstructed airflow (CFM)
and increase the pressure (PSI) output
of the regulator up to the maximum
air pressure rating of this tool.

Setup

1. If an automatic oiler is not used, add a few
drops of Pneumatic Tool Oil to the airline
connection before use. Add a few drops
more after each hour of continual use.

Safety

General Operating Instructions

Item 62552

For technical questions, please call 1-888-866-5797.

Page 11

User‑Maintenance Instructions

Safety

	Procedures not specifically explained in this manual must
be performed only by a qualified technician.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Turn off the tool, detach the air supply, safely discharge any residual air pressure
in the tool, and release the throttle and/or turn the switch to its off position
before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:
Do not use damaged equipment. If abnormal noise, vibration,
or leaking air occurs, have the problem corrected before further use.

Setup

TO PREVENT SEROUS INJURY FROM EXPLOSION:
Lubricate the tool only with specified lubricants. Lubricate the air inlet using only
pneumatic tool oil. Other lubricants may damage the mechanism and may be
highly flammable, causing an explosion.

Cleaning, Maintenance, and Lubrication
Note: These procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the air-operated tool.
1. BEFORE EACH USE, inspect the general
condition of the tool. Check for:
• loose hardware or housing,
Operation

• misalignment or binding of moving parts,
• cracked or broken parts, and
• any other condition that may
affect its safe operation.

2. Daily - Air Supply Maintenance:
Every day, maintain the air supply according
to the component manufacturers' instructions.
Maintain the lubricator's oil level.
Drain the moisture filter regularly.
Performing routine air supply maintenance
will allow the tool to operate more safely
and will also reduce wear on the tool.
3. Quarterly (every 3 months) –
Tool Disassembly, Cleaning,
and Inspection:
Have the internal mechanism
cleaned, inspected, and lubricated
by a qualified technician.
If the vanes need replacement,
replace them all as a set.

Maintenance
Page 12

For technical questions, please call 1-888-866-5797.

Item 62552

Troubleshooting

3. Incorrect lubrication or
not enough lubrication.
4. Blocked air inlet
screen (if equipped).
5. Air leaking from
loose housing.
6. Mechanism
contaminated.

7. Vane wear or damage.

Severe air
1. Cross‑threaded housing
leakage.
components.
(Slight air leakage
is normal,
especially on
2. Loose housing.
older tools.)

Housing heats
during use.

2. Clean around trigger to
ensure free movement.
3. Lubricate using air tool oil
according to directions.
4. Clean air inlet screen of buildup.
5. Make sure housing is properly
assembled and tight.
6. Have qualified technician
clean and lubricate mechanism.
Install in-line filter in air supply as
stated in Setup: Air Supply.
7. Replace all vanes as set.
1. Check for incorrect alignment
and uneven gaps. If crossthreaded, disassemble and replace
damaged parts before use.
2. Tighten housing assembly.
If housing cannot tighten properly,
internal parts may be misaligned.
Technician needs to disassemble
tool, align parts and reassemble.

3. Damaged valve
or housing.

3. Replace damaged components.

4. Dirty, worn or
damaged valve.

4. Clean or replace valve assembly.

1. Incorrect lubrication or
not enough lubrication.

1. Lubricate using air tool oil
according to directions.

2. Worn parts.

2. Have qualified technician inspect internal
mechanism and replace parts as needed.
Maintenance

Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect air supply before service.

Accessory List
Description

Function

4" Aluminum Oxide
For Grinding Metal
4" Silicon Carbide
For Grinding Masonry
*Item or part number may not be available for some accessories.
Item 62552

Safety

2. Obstructed trigger.

Likely Solutions
1. Check for loose connections and
make sure that air supply is providing
enough air flow (CFM) at required
pressure (PSI) to the tool's air inlet.
Do not exceed maximum air pressure.

Setup

Possible Causes

Operation

Problem

Decreased output. 1. Not enough air pressure
and/or air flow.

For technical questions, please call 1-888-866-5797.

Page 13

Parts List and Diagram

Safety

PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND
ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE
MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY
OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS
TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF
THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY
STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN
BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE
BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS
TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING
OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

Setup

Parts List
Part

Operation
Maintenance

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

Description

Body
Screw
O-Ring
Spring
O-Ring
Inlet
Handle
Pin
Trigger
Bearing
Cover
Pin
Cylinder
Blade
Rotor
Washer
Cover
Washer
Washer
Nut
Gasket

Qty
1
1
1
1
1
1
1
1
4
1
1
1
1
4
1
1
1
1
1
1
1

Part
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

Description

Gear
Gear Housing
Handle
Screw
Washer
Screw
Dust mat
Washer
Washer
Gear
Bearing
Key
Spindle
Plate
Guard
Flange
Grinding Wheel
(sold separately)
Screw
Spindle Wrench
Flange Wrench

Qty
1
1
1
1
8
4
1
1
1
1
1
1
1
1
1
2
–
4
1
1

Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Note: Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
Page 14

For technical questions, please call 1-888-866-5797.

Item 62552

25

Setup

26

10

26
39

23

18

13

12

10

11

22

10

17

24

Operation

27

34
35

38

21

16

40

9

1

20

15

19

14

41

8

Maintenance

33

37

36

Safety

Assembly Diagram

28
10
29
30

31

32

2
3

4
5

6

7

Page 15

For technical questions, please call 1-888-866-5797.

Item 62552

Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality
and durability standards, and warrants to the original purchaser that this product is free from
defects in materials and workmanship for the period of 90 days from the date of purchase. This
warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or
accidents, repairs or alterations outside our facilities, criminal activity, improper installation,
normal wear and tear, or to lack of maintenance. We shall in no event be liable for death,
injuries to persons or property, or for incidental, contingent, special or consequential damages
arising from the use of our product. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation of exclusion may not apply to
you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the complaint
must accompany the merchandise. If our inspection verifies the defect, we will either repair or
replace the product at our election or we may elect to refund the purchase price if we cannot
readily and quickly provide you with a replacement. We will return repaired products at our
expense, but if we determine there is no defect, or that the defect resulted from causes not
within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also
have other rights which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797



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