Komatsu Galeo PC138US-8 Shop Manual page 195

10 Structure, function and maintenance standard
P : From self pressure reducing valve
P1 : To blade valve
P2 : To blade valve
T : To tank
1. Spool
2. Piston
3. Lever
4. Plate
5. Retainer
6. Body
7. Filter
No. Check item
8 Centering spring
9 Metering spring
PC138US, USLC-8
Standard size
Free length
Installation
× Outside
length
diameter
42.36 ×
32.5
15.5
22.73 × 8.1 22
Criteria
Repair limit
Installation
Free length
load
147 N
—
{15 kg}
16.7 N
—
{1.7 kg}
SEN02550-01
Unit: mm
Remedy
Installation
load
If damaged or
deformed,
118 N
replace spring.
{12.0 kg}
13.3 N
{1.36 kg}
13