Komatsu Galeo BR380JG-1E0 Shop Manual page 72

10 Structure, function and maintenance standard
1. Level plug
2. No. 1 planetary gear (Number of teeth: 42)
3. Drain plug
4. No. 1 sun gear (Number of teeth: 10)
5. No. 2 sun gear (Number of teeth: 21)
6. No. 1 planetary carrier
7. Cover
8. No. 2 planetary carrier
9. Ring gear (Number of teeth: 95)
10. Sprocket
11. Floating seal
12. Travel motor
13. No. 2 planetary gear (Number of teeth: 36)
Specifications
Reduction ratio: – ((10 + 95)/10) × ((21 + 95) / 21) + 1 = – 57.000
No. Check Item
Backlash between No. 2 sun gear
14
and No. 2 planetary gear
Backlash between No. 1 planetary
15
gear and ring gear
Backlash between No. 2 plane-
16
tary carrier and motor
Backlash between No. 1 sun
17
gear and No. 1 planetary gear
Backlash between No. 2 plane-
18
tary gear and ring gear
Backlash between No. 1 plane-
19
tary carrier and No. 2 sun gear
20 Wear of tooth profile of sprocket
21 Tooth width of sprocket
BR380JG-1E0
Criteria
Standard clearance
0.13 – 0.47
0.17 – 0.57
0.06 – 0.25
0.14 – 0.46
0.16 – 0.56
0.38 – 0.66
Repair limit: 6
Standard size
71
Clearance limit
1.00
1.10
—
Replace
1.00
1.10
1.00
Repair hard
Repair limit chrome plating
or replace
68
SEN01349-00
Unit: mm
Remedy
5