Komatsu PC500LC-10R Shop Manual page 659

60 MAINTENANCE STANDARD
No. Item
1 Centering spring
2 Metering spring
3 Tightening torque of bolt
Tightening torque of the
4
plug
PC500LC-10R
Standard dimensions
Free height
Installed
x outside di-
height
ameter
48.57 x
32.5
15.5
26.53 x
24.9
8.15
25 to 31 Nm {2.5 to 3.2 kgm}
34 to 44 Nm {3.5 to 4.5 kgm}
MAINTENANCE STANDARD OF TRAVEL PPC VALVE
Judgment criteria
Load at in-
stalled Free height
height
108 N
-
{11 kg}
16.7 N
-
{1.7 kg}
Remedy
Repair limit
Load at in-
stalled
Replace the
height
spring if dam-
aged or de-
86.3 N
formed
{8.8 kg}
13.3 N
{1.36 kg}
Re-tighten
Unit: mm
60-55