Komatsu D65EX-12 Operation & Maintenance Manual page 145

OPERATION
MEASURING OUTSIDE DIAMETER OF TRACK ROLLER
1. Measure height (size C) of link tread as shown.
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
Standard size (A): 210 mm (8.3 in)
Repair limits: 172 mm (6.8 in)
3-98
OPERATION