MAC TOOLS GG53HD User manual

1 07/06/18
Model GG53HD
Heavy-Duty Single Shot Air Grease Gun
PARTS BREAKDOWN/OPERATING MANUAL
WARNING
FOR YOUR SAFETY AND TO PREVENT INJURY:
READ THIS INSTRUCTION MANUAL CAREFULLY AND UNDERSTAND ALL INFORMATION BEFORE
OPERATING THIS TOOL.
ALWAYS WEAR SAFETY EYE & EAR PROTECTION (USERS & BYSTANDERS).
DO NOT EXCEED 40 psig WITH HOSE OR 100 psig WITH SOLID EXTENSION. TO DO SO MAY CAUSE
PERSONAL INJURY.
EXTREME PRESSURE MAY CAUSE WHIP HOSE TO BURST. USE ONLY APPROVED HOSES AND FOLLOW THE
HOSE INSTRUCTIONS AND WARNINGS.
THIS AIR OPERATED GREASE GUN CAN DEVELOP HIGH PRESSURES - UP TO 3,600 psig. USE SAFETY
GLASSES AND GLOVES WHILE OPERATING THE GUN. KEEP HANDS CLEAR OF THE EXPOSED RUBBER
PORTION OF THE HOSE WHILE OPERATING THE GUN WITH HOSE.
IF FLUID APPEARS TO PENETRATE THE SKIN, SEEK IMMEDIATE MEDICAL ATTENTION.
DO NOT TREAT AS A SIMPLE CUT.
BE SURE THE TRIGGER IS NOT DEPRESSED WHEN ATTACHING THE GUN TO AN AIR INLET HOSE.
AVOID ACCIDENTAL STARTING.
HOLD THE HOSE ONLY BY THE METAL SPRING GUARDS ON THE END.
DO NOT ALLOW THE HOSE TO KINK. DO NOT BEND THE HOSE IN A TIGHT RADIUS.
REPLACE THE HOSE AT FIRST SIGN OF WEAR, KINK OR DAMAGE TO THE OUTSIDE JACKET.
USE ONLY HIGH PRESSURE GREASE GUN HOSE AS A REPLACEMENT.
THIS PRODUCT MAY CONTAIN CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND
BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM. WASH HANDS THOROUGHLY AFTER HANDLING.
FAILURE TO HEED THESE WARNINGS MAY RESULT IN SERIOUS OR FATAL PERSONAL INJURY, PROPERTY
DAMAGE OR BOTH.
Pump Ratio (max): ....................................40:1
Output per Stroke: ....................................2 ml
Pneumatic Inlet Pressure (min): .......................40 psig
Pneumatic Inlet Pressure (max):.......................100 psig
Grease Output Pressure: ...........................3,600 psig
Grease Reservoir Capacity: .............................14 oz
Operating Temperature Range: .......................14˚-104˚
Weight (empty): ....................................2.2 lbs
Lubricant up to NLGI: ..............................#2 Grease
Pneumatic Port Inlet: ...............................1/4" NPT
Grease Port Outlet: .................................1/8" NPT
SPECIFICATIONS
The pistol-style, Heavy-Duty
Single Shot Air Grease Gun
is a specially designed, high
quality, professional air tool for
automotive, truck and
industrial applications.
WARNING: This product can expose you to chemicals including nickel, which
is known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.

2 07/06/18
PARTS BREAKDOWN
Model GG53HD Heavy-Duty Single Shot Air Grease Gun
Ref. # Item # DESCRIPTION QTY
1 RS901601 Screw 4
2 RSGG53HD02 Finger Grip 1
3 RS901105 Piston 1
4 RS901106 Spring 1
5 RS901605 Gasket 1
6 RS901111 Filler Plug 1
7 RS901607 Air Vent Valve 1
8 RS901108 Adapter 1
9 RS901124 Housing Cap 1
10 RS901614 Gasket 1
11 RS901615 Nut 2
12 RS901115 Plunger 1
Ref # Item# DESCRIPTION QTY
13 RS901116 Backlash Gasket 1
14 RS901117 Long Spring 1
15 RS901611 Air Inlet 1
16 RS901612 Switch 1
17 RS901613 Trigger 1
18 RS901619 Piston Rod 1
19 RSGG53HD19 Container Tube 1
20 RSGG53HD20 Handle 1
21 RSSSAGG21 End Cap 1
22 RS901121 Locking Plate 1
23 RS901608 6" Hex Spout 1
24 RSSSAGG24 12" Nylon Hose 1
1
2
3
4
5
6
7
8
9
10
11
14
12
13
18
17
16
15
22
21
20
19
23
24

3 07/06/18
Model GG53HD Heavy-Duty Single Shot Air Grease Gun
FEATURES AND FUNCTIONS
• Heavy duty composite body for lighter weight and easier use
• 3 way loading - bulk, 14 oz. cartridge, filler pump
• Bleeder valve for purging unwanted air
• Weighs only 2.2 lbs
• Includes 6" bent metal spout and 12" high pressure
grease hose
PROPER GREASE GUN USE
This Air Powered Heavy-Duty Single Shot Air Grease Gun was developed
for the specific purpose of dispensing grease by using pneumatic
power.
The maximum rating listed in the specifications, should not
be exceeded.
This tool should only be used for its designed purpose and according to
the instructions in this manual.
GENERAL CAUTIONARY NOTES
Do not allow bystanders, children or other on-lookers in the work
area as they can cause distractions, which may lead to mistakes and
accidents.
Carefully inspect the equipment for damaged, loose or missing parts.
If the unit is worn or damaged, do not use it and contact an authorized
service center for evaluation or repair.
The Heavy-Duty Single Shot Air Grease Gun must be primed after each
refill or grease cartridge change. You should also check the priming of
the gun before each use.
For best performance and to extend product life, add a few drops of air
tool oil through the air fitting at the bottom of the handle if gun begins
to cycle slowly or erratically.
CAUTION!
Air pockets in the cartridge will cause the gun to lose prime.
REMOVING AN EMPTY GREASE CARTRIDGE
Make sure that the Grease Gun is disconnected from the air
supply prior to adding or removing the Grease Cartridge.
1. Pull the T-handle until the rod is fully extended. Hook the rod into
the rod notch in the end cap.
2. Unscrew the grease tube from the gun.
3. Carefully center the grease rod and eject the empty cartridge from
the grease barrel.
INSTRUCTIONS FOR CARTRIDGE LOADING
Make sure that the Grease Gun is disconnected from the air
supply prior to adding or removing the Grease Cartridge.
1. Remove the gun head from
the container tube.
2. Completely draw back the
plunger handle.
3. Insert open end of cartridge
into container tube and push
all the way in. Remove the
seal or pull tab end from
the cartridge.
4. Reassemble the gun head to
the container tube. Press the
catch plate and release the
piston rod. Pull down the
plunger handle.
SUCTION FILLING
1. Remove the gun head from
the container tube.
2. Submerge open end of the
container tube into grease
bucket about 2" deep and
pull the plunger handle out
slowly and engage rod into
key slot.
3. Reassemble the gun head to
the container tube. Press the
catch plate and release the
piston rod. Pull down the
plunger handle.
TROUBLESHOOTING/PRIMING
If your guns fails to work, first check for air pockets in the gun.
To remove trapped air, unscrew the gun head 1 to 1-1/2 turns and do
as follows:
1. Draw back plunger rod
fully and release quickly.
Repeat several times.
2. Push plunger rod all the
way in.
3. Tighten the head to the
barrel.
4. Press air vent valve several
times to expel the air.
Air
Vent
Valve
Plug