Manual For The 68247 Industrial Air Filter Regulator

User Manual: Manual for the 68247 Industrial Air Filter Regulator Industrial Air Filter Regulator

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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 15f

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© 2015 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��������������������������������������������������������� 2

Maintenancei����������������������������������������������� 8

Installationa�������������������������������������������������� 4

Parts List and Diagram............................... 10

Specifications.............................................. 4

Warranty..................................................... 12

Safety

Operationa���������������������������������������������������� 8

Installation

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.
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.

Operation

Addresses practices not related to personal injury.

IMPORTANT SAFETY INFORMATION
General Safety Warnings
WARNING Read all safety warnings and instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.

Maintenance

The warnings, precautions, and instructions discussed in this instruction 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.
1. Work area safety

2. Personal safety

a. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
b. Keep children and bystanders away
from an operating regulator.

Page 2

a. Stay alert, watch what you are doing and
use common sense when operating this
regulator. Do not use this regulator while
you are tired or under the influence of
drugs, alcohol or medication. A moment
of inattention while operating a regulator
may result in serious personal injury.

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

Item 68247

b. Maintain the regulator. Keep the regulator
clean for better and safer performance.
Follow instructions for lubricating
and changing accessories. Keep dry,
clean and free from oil and grease.

c. Use the regulator in accordance with these
instructions, taking into account the working
conditions and the work to be performed. Use
of the regulator for operations different from those
intended could result in a hazardous situation.
4. Service
a. Have your regulator serviced by a
qualified repair person using only identical
replacement parts. This will ensure that
the safety of the regulator is maintained.

Air Regulator Safety Warnings
1. Risk of bursting - do not adjust regulator higher
than marked maximum pressure of attachment.
2. Risk of injury - do not direct air
stream at people or animals.
3. Do not use to supply breathing air.
4. Keep regulator well-ventilated.
Do not cover regulator during use.
5. Drain Air Filter daily and after use.
Internal rust causes tank failure and explosion.
6. Do not remove the valve cover or
adjust internal components.
7. Do not use the air hose to move the regulator.
8. The use of accessories or attachments not
recommended by the manufacturer may
result in a risk of injury to persons.
9. All air line components, including hoses, pipe,
connectors, filters, etc., must be rated for a minimum
working pressure of 160 PSI, or 150% of the
maximum system pressure, whichever is greater.

Safety

a. Store an idle regulator out of the
reach of children and do not allow
persons unfamiliar with the regulator
or these instructions to operate it.

10. Industrial applications must follow OSHA guidelines.
11. Maintain labels and nameplates on the
regulator. These carry important safety
information. If unreadable or missing, contact
Harbor Freight Tools for a replacement.
12. This product is not a toy.
Keep it out of reach of children.

Installation

3. Regulator use and care

Check for misalignment or binding of
moving parts, breakage of parts and
any other condition that may affect the
regulator’s operation. If damaged, have
the regulator repaired before use.

13. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure.
14. WARNING: The brass components of this product
contain lead, a chemical known to the State
of California to cause cancer and birth defects
or other reproductive harm. (California Health
& Safety Code § 25249.5, et seq.)
15. WARNING: This product contains di (2-ethylhexyl)
phthalate (DEHP), a chemical known to the State
of California to cause cancer and birth defects
or other reproductive harm. (California Health
& Safety Code § 25249.5, et seq.)

Operation

b. Use personal protective equipment.
Always wear ANSI-approved eye
protection during setup and use.

Maintenance

SAVE THESE INSTRUCTIONS.

Item 68247

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

Page 3

Specifications
Operating Pressure

Safety

Air Inlet and Outlet Size
Features
Filter

0 -160 PSI
Inlet: 1/2” -14 NPT (female thread)
Outlet: 1/4”-18 NPT (male thread)
Replaceable air filter element
40 micron

Installation
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.

Installation

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 protective plugs covering the air ports. Remove these plugs before set up.

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.

Functions
Air Inlet Port

Operation

Regulator

Air Valve

Tank

Regulator Handle

Maintenance

Gauge

Drain Plug

Page 4

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Item 68247

Installation
1C

Note: Wrap all threaded connectors before
connecting them with pipe thread seal
tape (PTFE) to prevent leaking.
3. Attach an air hose to the compressor’s air outlet.
Connect the air hose to the air inlet of the unit.
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.

Safety

3B

4. Check that the regulator handle is loose.

2. Incorporate an in-line shutoff valve, and
quick coupler for best service, as shown on
Figure B on page 6 and Figure C on page 7.
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.

Installation

1. Thread the Regulator Handle into the Air Regulator
only a couple of turns. Do not tighten it.
Tightening it will set the regulator to high
pressure, possibly causing property damage
when first connecting the air supply.

5. Close the in-line shutoff valve between
the compressor and the tool.
6. Turn on the air compressor according to
the manufacturer’s directions and allow it
to build up pressure until it cycles off.
7. Inspect the air connections for leaks.
Repair any leaks found.

Air Connection Setup
1. Connect the regulator valve, an inline shut off
valve and a 1/4″ NPT air hose to the Compressor’s
Quick Coupler. The air hose must be long
enough to reach the work area with enough extra
length to allow free movement while working.

Maintenance

Note: 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.

2. Depending on the tool that will be used
with this regulator, incorporate additional
components, such as an in-line oiler, a filter,
or a dryer (all sold separately), as shown on
Figure B on page 6 and Figure C on page 7.
Consult air tool’s manual for needed accessories.

Operation

Figure A

Item 68247

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

Page 5

Description

Non-lubricated
Tools

A

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

Maintenance

A
B
C
D
E
F
G
H

Operation
Lubricated
Tools

B

B

C

C

A

Function

A

E

F

H

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

G

D
E

Installation

Figure B: Portable Air Supply Setup

Safety

Page 6

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Item 68247

Item 68247

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

Page 7

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

F

Description

F

E

I

I

J
K

N

Operation

J

H

Installation

Function

H

L

L

M

O

Safety

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

Non-lubricated Tools

C

C

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

B
A

Maintenance

B
A

C D

G

Lubricated
Tools

Slope

Figure C: Stationary Air Supply Setup

F

Operating Instructions
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.

Safety

Regulator 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 injury.
2. Locate the Regulator on a flat level surface to
ensure proper pump lubrication and to prevent
damage to the unit. Keep at least 12″ of space
around the unit to allow air circulation.

3. Route the power cord from the regulator to
the grounded wall outlet, along a safe path
without creating a tripping hazard or exposing
the power cord to possible damage.

Installation

General Operation
Note: At the beginning of the day’s first use of the
Air Regulator, check for air leaks by applying soapy
water to connections while the Air Regulator is pumping
and after pressure cut-out. Look for air bubbles. If air
bubbles are present at connections, tighten connections.
Do not use the Air Regulator unless all connections are
air tight, the extra air leaking out will cause the regulator
to operate too often, increasing wear on the regulator.
WARNING! TO PREVENT SERIOUS
INJURY AND DEATH FROM
EXPLOSION:
Do not exceed 160 PSI

Operation

1. Adjust the Regulator Knob (1C) 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. Turn the
knob clockwise to increase the pressure and
counter-clockwise to decrease pressure. Adjust
the pressure gradually, while checking the
air output gauge (6B) to set the pressure.

2. Make sure the air tool’s throttle or switch is in the
off position. Connect the air tool to the air hose.
3. Open the in-line Shutoff Valve.
4. Use the air tool as needed.
5. After the job is complete, turn the
compressor’s Power Switch OFF.
6. Disconnect the Air Regulator.
7. Close the in-line Shutoff Valve.
8. Bleed air from the tool then disconnect the tool.
9. Drain the Air Filter/Regulator of water daily. With the
unit under pressure, open the Drain Plug (14A) to
expel any accumulated moisture from the Air Filter.
10. Clean, then store the Air Regulator indoors.

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

Maintenance

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Turn the Power Switch “OFF” and unplug the Regulator from its electrical outlet
before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM REGULATOR FAILURE:
Do not use damaged equipment. If abnormal noise or vibration occurs,
have the problem corrected before further use.

Page 8

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

Item 68247

Cleaning, Maintenance, and Lubrication
2. AFTER USE, wipe external surfaces of
the regulator with a clean cloth.
3.

WARNING! If the supply cord of this
regulator is damaged, it must be replaced
only by a qualified service technician.

Safety

1. BEFORE EACH USE, inspect the general
condition of the air regulator. Check for:
• loose hardware,
• misalignment or binding of moving parts,
• cracked or broken parts,
• damaged electrical wiring, and
• any other condition that may
affect its safe operation.

Maintenance Schedule
Following are general guidelines for maintenance checks of the Air Regulator.

Daily:
a.
b.
c.
d.
e.

Weekly:
Make sure all nuts and bolts are tight.
Drain moisture from air tank.
Check for abnormal noise or vibration.
Check for air leaks.*
Wipe off any oil or dirt from the regulator.**

a. Inspect Air Filter.
Quarterly (every 3 months):
a. Tool Disassembly, Cleaning, and Inspection:
Have the internal mechanism cleaned, inspected,
and lubricated by a qualified technician.

* To check for air leaks, apply soapy water to joints while
the Air Regulator is pressurized. Look for air bubbles.

Installation

Note: The environment in which the regulator is used, and the frequency of use will affect how often
you will need to check the Air Regulator components and perform maintenance procedures.

** To clean the regulator surface, wipe with
a damp cloth, using a mild detergent or mild solvent.

5. Remove the Filter.
6. Check that the Large Plate and Cup are in
place, and replace with a new Filter.
7. Reassemble Filter Assembly according to
assembly order described in Figure D.
Note: Retaining Ring should slide on tightly
against the Filter Washer and Filter. If it
is loose, the Filter will not function.
8. Replace the Housing.
Note: Rubber Seals on Nuts and Housing must
be in good condition before reassembly.
9. Thread Bottom Nut back on to Stud. Tighten.

Item 68247

Top Plug

Large Plate

Cup
Filter
Filter Washer
Retaining Ring
Bottom Plug

Figure D

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

Page 9

Maintenance

Check the Air Filter weekly to see if it needs replacement.
Replace the filter more often if regulator is used in dirty environments.
3. Periodically remove the Filter (6A), rinse
it out with water and put it back in.
4. To access the air filter:
a. Secure the Top Nut (1A) in a vise.
b. Loosen and remove the Bottom Nut (13A).
c. Pull off the Housing (7A), exposing
the Filter Assembly.
d. Disassemble the Filter Assembly. Keep track of
assembly order. (Housing is not shown.)
See Figure D.

Operation

Air Filter Maintenance

Parts List and Diagram

PLEASE READ THE FOLLOWING CAREFULLY
Safety

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.

Parts List and Diagram A
Installation

Part

Description

1A

Air inlet
port

1A

Top Nut

2A

Filter Cap

3A

Gasket

4A

Large Plate

5A

Cup

3A

6A

Filter

7A

Housing

4A

8A

Filter Washer

Operation

9A

Retaining Ring

10A

Stud

11A

Gasket

12A

Filter Base

13A

Bottom Nut

14A

Drain Plug

2A

5A
6A
7A
8A
9A
10A
11A
12A
13A
14A

Maintenance

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 10

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

Item 68247

Parts List and Diagram B
Description
Nipple

2B

Elbow

3B

Air Regulator

4B

Plug

5B

Air Valve

6B

Gauge

2B

Safety

1B

1B
4B

3B

5B

6B

Installation

Part

Parts List and Diagram C
1C

Regulator Handle

2C

Housing Cap

3C

Spring Button

4C

Spring

5C

Spring Seat

6C

O-Ring

7C

Steel Plate

8C

Brass Nut

9C

O-Ring

10C

Pin

11C

Spring

12C

Body

13C

Screen

1C

Operation

Description

2C

3C
4C
5C
6C
7C

Maintenance

Part

8C
9C
10C
11C
12C
13C

Item 68247

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Page 11

Limited 90 Day Warranty
Harbor Freight ToolsHarbor Freight ToolsHarbor Freight ToolsHarbor Freight ToolsHarbor 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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