Swing Machinery - Komatsu PC20R-8 Shop Manual

SWING MACHINERY

PC27R-8
25 Nm
750 ± 850 Nm
20 ± 30 Nm
No. Check item
Clearance between
1
sun gear and planetary gear
Clearance between
2
planetary gear and ring gear
Clearance between
3 pinion and
swing circle teething
Size of pinion in the zone
4
of contact with the sealing ring
PC20R-8 PC27R-8
3
Standard clearance
Standard size
Criteria
0.10
0.15
0.30
50
0.19
1
42 Nm
2
4
130 Nm
RKP01540
Clearance limit
0.30
0.35
0.70
Repair limit
49.5
Unit: mm
Remedy
Replace
40-3