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OPERATION
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.
Basic link pitch (P): 216.3 mm (8.5 in)
Link pitch limit for turning bushing: 219.3 mm (8.6 in)
There is no link window on the master link.
REMARK
The measured value under decimal of link pitch is different from the
basic value depending upon the precision of measure or the
tolerance of product even if it isn't worn out.
Don't judge it's worn out too soon, do it with the trend of measured
value after that.
MEASURING HEIGHT OF GROUSER
After taking up slack in track shoes, measure height at center of
shoe as shown below.
Standard height (h): 72 mm (2.8 in)
Repair limits: 25 mm (1.0 in)
3 - 128
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