extension and grease gun must be tight and it is advisable to
use a thread sealant to ensure a leak-proof joint.
CAUTION
Do not apply excessive torque or over-tighten the grease gun
extension as this will apply undue stress to the die cast outlet
and may cause it to fracture.
11. Press the trigger until grease flows out from the coupler. The
grease pressure can be adjusted by regulating the inlet air
pressure. Grease pressure is 40 times greater than the air
inlet pressure.
CAUTION
Note that this is a continuous flow grease gun and will keep
dispensing grease while the trigger is pressed. Be careful not
to over lubricate!
Greasing a Grease Fitting / Grease Nipple:
The grease coupler provided at the end of the grease gun
extension has a jaw type construction. The coupler jaws will snap
on to a grease fitting and maintain a tight fit. When connecting the
coupler to the grease fitting, press the coupler straight onto the
grease fitting to form a snug fit. Start operating the grease gun
with the coupler as square to the grease fitting as possible. Once
greasing is completed, slightly tilt the coupler, twist and pull back.
The tilt and twist action will allow easy removal of the coupler
from the grease fitting.
Maintenance:
Grease guns and hoses should be kept clean and checked for
damage before each use. Use an air supply system that incorpo-
rates a filter, regulator, and lubricator, or add a few drops of lubrica-
tor oil (SAE 30 or greater) through the gun’s air supply
quick connect fitting in the die cast handle.
Symptom (s)
Possible Causes (s)
Corrective Action (s)
Grease gun pumps little or
no grease.
1. Barrel not completely tightened.
2. Air Pockets are trapped in grease.
3. Blocked grease gun extension.
1. Tighten the barrel completely.
2. Prime grease gun as detailed in instructions.
3. Remove the extension and operate the grease gun.
If the gun dispenses grease then the gun is fine and
you need to either clean the extension or replace it.
4. Store grease gun and grease away from extreme cold
or use thinner grease.
Excessive grease leaking past the
follower.
1. Follower is damaged.
2. Improper seal between the plunger and the grease
gun barrel when using bulk fill or transfer pump.
1. Replace the grease gun.
Gun cycles very slowly.
1. Inadequate lubrication of the pumping chamber.
2. Put a few drops of lubricator oil through the quick
connect coupler fitting.
®Registered trademark of JET Equipment & Tools Ltd.
www.jetequipment.com
M12-HT350162
Troubleshooting Chart
