Auxiliary Relief Valves - jcb JS300 Service Manual

General
1 Prepare the machine
a Operate the dipper out and lower the boom to set
the bucket on the ground.
Fig 7.
b Make the machine safe, refer to Section E,
Service Procedures.
2 Increase MRV Pressure, refer to Section E, Service
Procedures.
3 Test the ARVs with the engine at idle using the
appropriate test points.
4 Restore Original MRV Pressure, refer to Section E,
Service Procedures.
E-286

Auxiliary Relief Valves

TE-014_2
C030150-1
9813/5100-1
Section E - Hydraulics
Hydraulic System Test Procedures
Auxiliary Relief Valves
E-286