Method For Checking Looseness And Tightening Track Shoe Bolts - Komatsu D85EX-18 Operation & Maintenance Manual

MAINTENANCE PROCEDURE
1.
Remove cover (1).
2.
Pump in grease through grease fitting (2) by using a
grease pump.
Grease can be pumped in until dimension (S) becomes
zero (0). If the track tension is still loose, the pins and
bushings are excessively worn. The pins and bushings
need to be turned 180 deg. or replaced. Ask your Komatsu
distributor for repair.
3.
Move the machine backward and forward.
4.
Check the belt tension again.
Check that the track tension is proper.
If the track tension is not proper, adjust it again.
METHOD FOR DECREASING TRACK TENSION
It is extremely dangerous to release the grease by any method other than the following procedure.
If track tension is not relieved by this procedure, contact your Komatsu distributor for repairs.
NOTICE
• The safety indicator is stuck to the back of cover (1). Take care not to damage the safety indicator.
• When removing cover (1), be careful not to let any dirt or soil get in.
1.
Remove cover (1).
2.
Loosen plug (2) gradually to release the grease.
When loosening plug (2), turn it a maximum of 1 turn.
If the grease does not come out smoothly, move the ma-
chine forward and backward a short distance.
3.
Tighten plug (2).
4.
Move the machine backward and forward.
5.
Check the belt tension again.
Check that the track tension is proper.
If the track tension is not proper, adjust it again.
METHOD FOR CHECKING LOOSENESS AND TIGHTENING TRACK SHOE
BOLTS
NOTICE
If the machine is used with track shoe bolts loose, they will break. Tighten any loose bolt immediately.
4-22
k k
WARNING
MAINTENANCE