Troubleshooting - Matco Tools GG45A Manual De Servicio

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.
WARNING
Never try to dis-engage the coupler by pulling it out straight

TROUBLESHOOTING

Problem
1. Grease gun pumps little or no
grease
2. Excessive Grease leaks out
from the back side of the Grease
Gun -
around the Plunger Rod
3. Grease leaks from the con-
nection between the Grease Gun
Head & the Extension / Extension
& Coupler
4. Grease leaks from the Coupler
body joint or from in-between the
Coupler Jaws & Grease Nipple
Cause
a. Trapped air pockets in grease
b. Thick Grease or Frozen
Grease
c. Blocked Grease Gun Exten
siond. Blocked Grease Gun
Head
a. Damaged Grease Gun Rubber
Follower
a. Loose Connection
a. Damaged Grease Coupler
4
To remove,
Tilt, Twist
& Pull
Remedy
a. Prime Grease Gun
b. Use a lower viscos-
ity Grease / add some oil
to grease to make it more
viscous / heat the Grease Gun
Barrel to unfreeze the grease
c. Remove Grease Gun Exten-
sion. If Grease gun pumps
grease without the extension,
then the problem is with the
extension, which should be
cleaned / replaced
d. Dis-assemble the Grease
Gun Head to check for any
contaminants blocking the
passage of grease. Clean &
Re-assemble the Grease Gun
Head
a. Change Follower
a. Tighten the connection us-
ing Teflonor any other Thread
Sealant
a. Change Coupler
F1490, Rev A