Method For Replacing Door Damper; Method For Lubricating Door Hinge; Method For Checking Door Latch; Method For Checking Door Lock Striker - Komatsu D37EX-24 Operation & Maintenance Manual

MAINTENANCE PROCEDURE

METHOD FOR REPLACING DOOR DAMPER

Measure groove depth (A) of door damper rubber (1).
When groove depth (A) decreases to 2 mm or less, replace the
damper.
The damper is installed at top and bottom, 2 pieces each on
the R.H. and L.H. doors.

METHOD FOR LUBRICATING DOOR HINGE

Perform this when the door creaks when it opens or closes.
1.
Supply spray lubricant through the bushing slit of the
hinge.
2.
If the bushing is worn, replace the hinge.

METHOD FOR CHECKING DOOR LATCH

1.
Keep the door open.
2.
Check if the grease in the latch dried out.
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 of the door will become poor because of dust inside
the latch, and the handle may become heavy when you open the door.

METHOD FOR CHECKING DOOR LOCK STRIKER

Measure wear (A) of the door lock striker.
If wear (A) is 0.5 mm or more, replace the door lock striker.
If you use it as it is, its play increases and can cause breakage
of the hinge and lock door.
4-32
MAINTENANCE