Komatsu PC200LC-8 Shop Manual page 45

STRUCTURE, FUNCTION AND
MAINTENANCE STANDARD
1. Drain Plug
2. Swing pinion (No. of teeth: 13)
3. No. 2 planetary carrier
4. No. 2 planetary gear
Specifications
Reduction ratio: . . . . . . . . . . . . . (17 + 58)/17) x ((18 + 58)/18) = 18.627
No. Check item
Backlash between swing motor
13
shaft and No. 1 sun gear
Backlash between No. 1 sun
14
gear and No.1 planetary gear
Backlash between No. 1 plane-
15
tary gear and ring gear
Backlash between No. 1 plane-
16
tary carrier and No. 2 sun gear
Backlash between No. 2 sun
17
gear and No.2 planetary gear
Backlash between No. 2 plane-
18
tary gear and ring gear
Backlash between No. 2 plane-
19
tary carrier and swing pinion
Backlash between swing pinion
20
and swing circle
Clearance between plate and
21
No. 2 planetary carrier
Clearance between No. 2 sun
22
gear and plate
Wear of swing pinion surface
23
contacting with oil seal
Torque Values
Item
24
25
26
27
28
PC200LC-8
5. No. 2 sun gear
6. No. 1 planetary carrier
7. No. 1 planetary gear
8. No. 1 sun gear
Criteria
Standard clearance
0.18–0.28 (0.007–0.011)
0.16–0.50 (0.006–0.020)
0.18–0.59 (0.007–0.023)
0.39–0.71 (0.015-0.025)
0.16–0.50 (0.006–0.020)
0.18–0.59 (0.007–0.023)
0.07–0.23 (0.003–0.009)
0.22–1.32 (0.009–0.052)
0.66–1.14 (0.060–0.045)
1.66–2.94 (0.065–0.116)
Standard size
ø125 (+0/ –0.100)
N•m
59-74
157 - 196
157 - 196
59 - 74
490 - 608
POWER TRAIN
9. Swing motor
10. Oil level gauge
11. Ring gear
12. Case
Clearance limit
—
1.00 (0.040)
1.10 (0.043)
1.20 (0.047)
0.90 (0.035)
1.00 (0.040)
—
2.00 (0.079)
—
—
Repair limit
Apply hard chrome
plating or replace
—
lbf ft
44 - 54
116 - 144
116 - 144
44 - 54
362 - 448
Unit: mm (in)
Remedy
Replace
10-11