Komatsu PC500LC-10R Shop Manual page 618

MAINTENANCE STANDARD OF SWING MACHINERY
No. Item
Backlash between No. 2 sun
1
gear and No. 2 planetary gear
Backlash between No. 2 plane-
2
tary gear and ring gear
Backlash between No. 1 plane-
3
tary gear and ring gear
Backlash between No. 1 sun
4
gear and No. 1 planetary gear
Backlash between swing motor
5
shaft and No. 1 sun gear
Backlash between No. 1 plane-
6
tary carrier and No. 2 sun gear
Clearance between plate and
7
No. 2 sun gear
Clearance between plate and
8
No. 2 planetary carrier
Backlash of No. 2 planetary
9
carrier and swing pinion
Backlash of swing pinion and
10
swing circle
Outside diameter of oil seal
11
contact surface of spacer
60-14
Judgment criteria
Standard clearance
0.15 to 0.51
0.17 to 0.60
0.16 to 0.57
0.13 to 0.48
0.18 to 0.28
0.40 to 0.72
2.6 ± 0.71
0.83 ± 0.26
0.08 to 0.25
0 to 1.21
Standard di-
Tolerance
mensions
0
150
-0.100
60 MAINTENANCE STANDARD
Allowable clearance
1.00
1.20
1.10
1.00
-
1.40
-
-
-
2.00
Repair limit
-
Unit: mm
Remedy
Replace
Repair the hard
chrome plating or
replace it
PC500LC-10R