U.S. General 92252 User manual

LARGE CAPACITY
LEVER ACTION GREASE GUN
Model 92252
OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at: http://www.harborfreight.com
Copyright 2004 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.
For technical questions, or replacement parts, please call 1-800-444-3353.
®
©
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.

PRODUCT SPECIFICATIONS
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
IMPORTANT SAFETY INSTRUCTIONS
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed below may
result in serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and dark areas
invite accidents.
SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 2
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List on page 9 are
included. If any parts are missing or broken, please call Harbor Freight Tools at the
number shown on the cover of this manual as soon as possible.
GENERAL SAFETY RULES
Item Description
Capacity Will accept:
Standard 14 ounce grease cartridge
or 24 ounces bulk loaded.
Function Method Piston and Lever (Manual).
Extension Pipe Size 6” Long.
Coupler Type 4 Jaw.
Additional Features Air Release Valve / Bulk Loader Fitting.
Weight 3.95 Pounds.

2. Keep bystanders, children, and visitors away while operating this product.
Distractions can cause you to lose control.
PERSONAL SAFETY
1. Stay alert. Watch what you are doing, and use common sense when oper-
ating a power tool. Do not use this product while tired or under the influ-
ence of drugs, alcohol, or medication. A moment of inattention while operat-
ing this product may result in serious personal injury.
2. Dress properly. Do not wear loose clothing or jewelry. Contain long hair.
Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
3. Do not overreach. Keep proper footing and balance at all times. Proper
footing and balance enables better control of the power tool in unexpected
situations.
4. Use safety equipment. Always wear ANSI approved safety glasses underneath
a full face safety shield. Non-skid safety shoes, heavy duty work gloves, and a
hard hat should be worn under appropriate conditions.
SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 3
TOOL USE AND CARE
1. Do not force the tool. Use the correct tool for your application. The correct
tool will do the job better and safer at the rate for which it is designed.
2. Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
3. Maintain tools with care. Properly maintained tools are less likely to malfunc-
tion and are easier to control. Do not use a damaged tool. Tag damaged tools
“Do not use” until repaired.
4. Check for misalignment or binding of moving parts, breakage of parts, and
any other condition that may affect the tool’s operation. If damaged, have
the tool serviced before using. Many accidents are caused by poorly main-
tained tools.
5. Use only accessories that are recommended by the manufacturer for your
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.

SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 4
SERVICE
1. Tool service must be performed only by qualified repair personnel. Service
or maintenance performed by unqualified personnel could result in a risk of injury.
2. When servicing a tool, use only identical replacement parts. Follow
instructions in the
“Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of personal injury.
SPECIFIC SAFETY RULES
1. Maintain labels and nameplates on this product. These carry important infor-
mation. If unreadable or missing, contact Harbor Freight Tools for a replacement.
2. When using the Grease Gun, always maintain a firm grip on the tool with
both hands.
3. Keep the outer body of the Grease Gun dry, clean, and free from oil and
grease.
4. Industrial applications must follow OSHA requirements.
5. Make sure to read and understand all instructions and safety precautions
as outlined in the manufacturer’s manual for the vehicle (or object) you are
lubricating.
6. This Grease Gun is designed only to hold and dispense grease. Never use
the Grease Gun to hold and dispense any other material.
7. WARNING! The warnings, precautions, and instructions discussed in this
manual cannot cover all possible conditions and situations that may occur. The
operator must understand that common sense and caution are factors which
cannot be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS

PRODUCT FEATURES
SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 5
TO INSTALL A GREASE CARTRIDGE
NOTE: For additional information regarding the parts listed in the following pages, refer
to the Assembly Diagram on page 9.
1. Unscrew and remove the Head (6) of the Grease Gun from the Barrel (3).
(See Figure A.)
2. Depress the Release Latch (8), and pull the Plunger Rod (7) all the way back.
(See Figure A.)
3. Remove the pull tab from a grease cartridge (not included), and insert the
cartridge (closed end first) into the Barrel (3).
(See Figures A and B, next page.)
4. Screw the Head (6) back onto the Barrel (3).
(See Figure A.)
5. Depress the Release Latch (8), and push the Plunger Rod (7) all the way forward
to its original position. (See Figure A.)
HANDLE
(1)
PLUNGER ROD
(7)
BARREL
(3)
EXTENSION
PIPE
(2)
COUPLER
(5)
HEAD
(6)
PLUNGER
HANDLE
(4)
RELEASE LATCH
(8)
LOADER FITTING
(10)
AIR RELEASE VALVE
(9)
FIGURE A

SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 6
TO FILL THE GREASE GUN BY SUCTION FILLING
1. Unscrew and remove the Head (6) from the Barrel (3). (See Figures A and B.)
2. Insert the open end of the Barrel (3) into the lubricant. Depress the Release
Latch (8), and slowly pull the Plunger Rod (7) back while pushing the Barrel
deeper into the lubricant to prevent air pockets from being pulled into the Barrel.
(See Figures A and B.)
3. When the Plunger Rod (7) is fully extended, remove the Barrel (3) from the
lubricant. Wipe the exterior of the Barrel clean of lubricant. Then, screw the
Head (6) back onto the Barrel. (See Figures A and B.)
5. Depress the Release Latch (8), and push the Plunger Rod (7) back into the
Barrel (3). (See Figures A and B.)
TO FILL THE GREASE GUN USING A FILLER PUMP
FILLER PUMP FILLING
SUCTION FILLING
CARTRIDGE FILLING
BARREL
(3)
PLUNGER ROD
(7)
RELEASE
LATCH
(8)
CARTRIDGE
1. Depress the Release Latch (8), and pull back on the Plunger Rod (7) until the
Plunger Rod is extended only halfway . (See Figures A and B.)
FIGURE B

SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 7
2. Attach the Loader Fitting (10) of the Grease Gun to the Filler Valve on the lubri-
cant container. (See Figures A and B.)
3. Operate the Filler Pump on the lubricant container to fill the Barrel (3) of the
Grease Gun. (See Figures A and B.)
4. CAUTION! Make sure to read and understand all safety warnings and
instructions as outlined in the owner’s manual of the Filler Pump.
5. When the Plunger Rod (7) automatically extends out from the rear of the
Barrel (3) about 8 inches, the Barrel is filled. (See Figures A and B.)
6. Disconnect the Grease Gun from the Filler Valve on the lubricant container.
Then, depress the Release Latch (8) and push the Plunger Rod (7) forward all
the way into the Barrel. (See Figures A and B.)
TO EXPEL AIR POCKETS IN THE BARREL
1. Depress the Release Latch (8), and slowly push the Plunger Rod (7) forward
toward the Barrel (3). While pushing the Plunger Rod forward, depress the Air
Release Valve (9) on the Grease Gun. This allows excess air to escape from the
Barrel. (See Figure A.)
2. Continue pushing the Plunger Rod (7) forward while depressing the Air Release
Valve (9) until all excess air is expelled from the Barrel (3). Then, release pres-
sure on the Air Release Valve. (See Figure A.)
TO OPERATE THE GREASE GUN
1. NOTE: ALWAYS clean the grease fitting carefully and completely with a clean
cloth prior to inserting the Grease Gun’s Coupler (5) onto the grease fitting. (See
Figure A.)
2. Insert the Coupler (5) of the Grease Gun fully onto the clean grease fitting of the
object you are lubricating. (See Figure A.)
3. With one hand, hold the Barrel (3) securely. With the other hand, pump the
Handle (1) of the Grease Gun several times or until a small amount of grease
begins to flow back out of the grease fitting. (See Figure A.)

SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 8
4. Remove the Coupler (5) from the grease fitting, and wipe any excess
grease from the exterior of the grease fitting and Coupler. (See Figure A.)
5. When finished, store the Grease Gun in a clean, dry, safe location out of reach of
children.
INSPECTION, MAINTENANCE, AND CLEANING
1. Before each use, inspect the general condition of the Grease Gun. Check for
misalignment or binding of moving parts, cracked or broken parts, leaking con-
nections, and any other condition that may affect its safe operation. If a problem
occurs, have the problem corrected before further use.
Do not use damaged equipment.
2. Daily, with a soft, dry cloth, remove all dirt, grease, and debris from the exterior of
the Grease Gun. Do not use solvents to clean the Grease Gun. Do not immerse
the Grease Gun in any liquids.
3. When storing, always keep the Grease Gun in a clean, dry, safe location out of
reach of children.
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 LICENSEDTECHNICIANS, AND NOT BYTHE 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.

SKU 92252 For technical questions, please call 1-800-444-3353 PAGE 9
PARTS LIST
NOTE:
Some parts are listed and shown for illustration purposes only,
and are not available individually as replacement parts.
Part # Description Qt
y
. Part # Description Qt
y
.
1 Handle 1 6 Head 1
2 Extension Pipe 1 7 Plunger Rod 1
3 Barrel 1 8 Release Latch 1
4 Plunger Handle 1 9 Air Release Valve 1
5 Coupler 1 10 Loader Fitting 1
ASSEMBLY DIAGRAM
1
23
4
5 6 7
8
9
10