Komatsu D155A-6 Operation & Maintenance Manual page 213

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OPERATION
MEASURING OUTSIDE DIAMETER OF TRACK ROLLER
1. Measure the height (dimension C) of the link tread as shown in
the diagram.
2. Stop machine at position where link tread, whose size C has
been measured completely, contacts roller tread. Then
measure size B.
3. Calculate outside diameter of tread (size A):
A = (B - C) x 2
Basic dimension (h): 250 mm (9.9 in)
Repair limit: 210 mm (8.3 in)
3 - 162
OPERATION

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