SERVICE PROCEDURE MAINTENANCE
4-30
ADJUST IDLER CLEARANCE
Since the idlers are forced to move forward and backward by an external force guide plates will be worn out. Wear
of these plates will cause the vibration of idlers from side to side or inclination of the idlers, and running off of track
links from the idlers or unevenly worn idler and links may result.
Therefore, adjust the idlers according to the following procedure.
ADJUSTMENT
1. Move the machine by 1 to 2m (3ft 3in to 6ft 7in) on a level
place, then measure clearance A between the track
frame and guide plate (at four places of both sides,
inside, and outside).
2. If the clearance A exceeds 4.0mm (0.16in), loosen
bolt(1), and pull out the shim to adjust the clearance at
one end to 0.5 to 1.0mm (0.02 to 0.04in).
Thickness of one shim is 1.0mm (0.04in).
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