Komatsu PC600LC-7 Manual page 49

STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
1. Swing pinion (No. of teeth: 13)
2. Cover
3. Case
4. Coupling
5. No. 2 planetary gear (No. of teeth: 36)
6. Ring gear (No. of teeth: 95)
7. No. 1 planetary gear (No. of teeth: 39)
8. Cover
9. Swing motor
10. Oil level gauge
11. No. 1 sun gear (No. of teeth: 16)
12. No. 1 planetary carrier
13. No. 2 sun gear (No. of teeth: 21)
14. No. 2 planetary carrier
No. Check item
Backlash between swing
15 motor shaft and No. 1 sun
gear
Backlash between No. 1 planet
16
carrier and No. 2 sun gear
Backlash between No. 2 planet
17
gear and ring gear
Backlash between No. 2 sun
18
gear and No. 2 planet gear
Backlash between No. 2 planet
19
carrier and coupling
Clearance between plate and
20
coupling
Backlash between No. 1 sun
21
gear and No. 1 planet gear
Backlash between swing pinion
22
and swing circle
Backlash between coupling
23
and swing pinion
Backlash between No. 1 planet
24
gear and ring gear
Wear of swing pinion oil seal
25
contact surface
PC600, 600LC-7
Specifications
Reduction raito:
Criteria
Standard clearance
0.15 – 0.49
0.38 – 0.66
0.17 – 0.57
0.15 – 0.49
0.06 – 0.25
0.38 – 0.82
0.15 – 0.49
0 – 0.126
0.07 – 0.23
0.15 – 0.57
Standard size
0
140.3
–0.100
SWING MACHINERY
16+95 21+95
x
16 21
=
38.321
Clearance limit
—
1.20
1.00
0.90
—
—
1.00
2.00
—
1.10
Repair limit
—
Unit: mm
Remedy
Replace
Repair hard
chrome plat-
ing replace
10-17