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OPERATION
INSPECTION AND REPAIR
Frequent inspection and prompt repair will reduce repair costs.
The following items for inspection will serve as a guide to maintenance service of each undercarriage part. Perform
periodical inspection and contact the Komatsu distributor in your area when machine has approached repairable
limits and reversing limits.
MEASURING LINK PITCH
1. Insert a wooden block between track shoe and sprocket to take
up the slack in track shoes.
2. Measure pitch length of 4 links in stretched portion at least 2
links away for master pin. Of length obtained, 1/4 is the link
pitch.
REMARK
Basic link pitch (P): 228.85 mm (9.0 in)
Bushing turning limit link pitch
Heavy-duty: 231.85 mm (9.1 in)
There is no link window on the master link.
MEASURING HEIGHT OF GROUSER
After taking up slack in track shoes, measure height at center of
shoe as shown below.
Basic dimension (h): 80 mm (3.2 in)
Repair limit: 30 mm (1.2 in)
OPERATION
3 - 161
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