Mitsubishi Mahindra GX3600 Service Manual page 88

MECHANICAL STRUCTURE
7-6 CONTROL VALVE
1 Structure
1. Structure
3 Unload valve
Spool valve
spring
Pilot oil return
Cylinder return
Cylinder port
1. Spool Valve
It indirectly operates the unload valve and check valve.
2. Poppet
It opens only when lowering the lift arm and is closed to the sheet by poppet spring.
3. Unload Valve
It is indirectly operated by movement of the spool valve. It opens when the spool is in neutral position and
lowering to return the oil from the pump to the transmission case.
4. Check Valve
It is indirectly operated by movement of the spool valve. It opens only when lifting.
2 Specifications
2. Specifications
Maximum Discharge
Maximum Usable Pressure
Pressure Loss
Operating Oil
84
Neutral oil return
Valve body
Poppet spring
Control Valve Sectional View
P T (neutral)
pressure loss
P C (lifting)
pressure loss
Multi STOU Oil Temperature: 40 C to 50 C
Hydraulic
1 Spool valve
pressure signal
T
2
Pump port
Sheet
T
2
Poppet
4
Check valve
2
, 2205psi}
C
4
2
3
1
T P T
1 3
PR8W4-014
2
, 114psi}
2
, 199psi}