Komatsu ecot3 WA500-6 Shop Manual page 12

1. Load check valve (Bucket bottom)
2. Load check valve (Lift arm bottom)
3. Load check valve (Lift arm Hi) and (Lift arm bottom)
4. Load check valve (Bucket Hi) and (Bucket head)
5. Pressure compensation valve (Lift arm head)
6. Load check valve (Bucket head)
No. Check item
7 Check valve spring
WA500-6
7
Standard size
Free length
Installed
x Outside
length
diameter
38.9 x 11.5 30.0
Criteria
Repair limit
Installed Free
load length
29.4 N
—
{3.0 kg}
Hydraulic system
Control valve
Unit: mm
Remedy
Installed If damaged or
load deformed,
replace spring
23.5 N
{2.4 kg}
10-7