Lubricate Door Hinge; Check Door Latch - Komatsu D475A-5E0 Operation & Maintenance Manual

SERVICE PROCEDURE
Inspection and Maintenance Items
Check, maintenance items
Refrigerant (gas)
Air conditioner condenser
Compressor
V-belt
Blower motor, fan
Control mechanism
Piping mounts

LUBRICATE DOOR HINGE

If the door makes a squeaking noise when it is opened or closed,
spray lubricant in through the split in the hinge bushing.
If the bushing is worn, replace the hinge.

CHECK DOOR LATCH

If the control lever is touched by accident during checking, the machine
moves off suddenly, and this may lead to serious injury or death.
Before checking door latch, stop the engine and set the parking brake lever
securely to LOCK position.
Check
Hold the door open-locked, and check that there is still grease
inside the latch. If the amount of grease is low or there is no more
grease, coat the inside of the latch with grease from portion (1).
REMARK
If there is no more grease inside the latch, the movement will
become poor because of dust inside the latch, and the handle may
be stiff when opening the door.
4 - 48
Content of check, maintenance
Charge amount
Clogged fins
Operating condition
Damage, tension
Operating condition
(does it make abnormal noise?)
Operating condition (does it function normally?)
Mounting condition, looseness at tightening or
connecting portions, leakage of gas, damage
WARNING
MAINTENANCE
Guideline for maintenance time
Twice a year (spring, autumn)
Every 500 hours
Every 4000 hours
Every 250 hours
When required
When required
When required