Komatsu PC88MR-10 Shop Manual page 1298

60 Maintenance standard
Blade PPC valve
No. Item
Centering spring
1
Metering spring
2
60-46
Standard dimension
Free height
Installed
x outside
height
diameter
33.88 x
28.4
15.3
22.73 x 8.1 22
Criteria
Repair limit
Load at
installed Free height
height
125 N
{12.7 kg}
16.7 N
{1.7 kg}
Unit: mm
Remedy
Load at
installed
Replace
height
spring if
100 N
damaged or
{10.2 kg} deformed
13.3 N
{1.36 kg}
PC88MR-10