Track Roller - Komatsu PC20R-8 Shop Manual

TRACK ROLLER

6
170 Nm
5
No. Check item
Outer diameter
1
of thread
Outer diameter
2
of protusion
3 Width of thread
4 Width of protusion
Clearance between
5
shaft and bushing
Interference between
6
roller and bushing
7 Axial play of roller
PC20R-8 PC27R-8
7 4
Standard size
112
85
36
30
Tolerance
Standard
size
Shaft
0 + 0.183
25
± 0.013 + 0.144
Tolerance
Standard
size
Shaft
+ 0.073 + 0.039
32
+ 0.048 + 0
Standard size
0 ± 1.17
3
Criteria
Repair limit
104
77
39
18
Standard
clearance
Hole
0.2
Standard
interference
Hole
0.021
Repair limit
1.17
2 1
RKP01411
Unit: mm
Remedy
Replace
Clearance
limit
0.3
Replace
bushing
Interference
limit
0.085
Replace
40-9