Komatsu PC200-8M0 Shop Manual page 205

403 Hydraulic system, Part 3
Swing motor
1. Brake spring
2. Drive shaft
3. Spacer
4. Case
5. Disc
6. Plate
7. Brake piston
8. Housing
9. Piston
10. Cylinder block
11. Valve plate
12. Center shaft
13. Center spring
14. Check valve
15. Shuttle valve
No. Check item
16
Check valve spring
17
Shuttle valve spring
PC200, 200LC, 220, 220LC-8M0
Standard dimension
Free length x Installed
Outside diameter length
57.2 x 20.0 30.9
16.4 x 8.9 11.5
Criteria
Repair limit
Load at
installed Free length
length
3.43 N
—
{0.35 kg}
13.7 N
—
{1.4 kg}
SEN06121-00
Unit: mm
Remedy
Load at
installed
length
Replace spring if
2.74 N damaged or
{0.27 kg} deformed
11.0 N
{1.12 kg}
10-403
7