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HYDRAULIC SYSTEM
GRT9165 SERVICE MANUAL
2-30
Published 10-01-2020 Control # 699-00
Differential Lock Manifold Valve
The differential lock switch in the cab activates the
differential locks on the front and rear axles for additional
traction. The differential lock manifold (Figure 2-11), located
inside the carrier frame near the middle axle, valve controls
the flow of the hydraulic oil to the engage port of the
differential lock actuators. When the actuators are extended,
they engage the splines on the differential case and the axle
shafts to lock the differential assemblies together.
Releasing the differential lock switch unlocks the solenoid
valve to release hydraulic pressure to retract-the actuators.
As the actuators retract, the axles are unlocked.
Removal
1.
Tag and disconnect electrical connectors to the valve.
2.
Tag and disconnect hydraulic hoses from the valve. Cap
or plug lines and ports.
3.
Remove capscrews, lockwashers, flatwashers, and nuts
securing valve to the frame. Remove valve.
Installation
1.
Secure valve to frame with nuts, flatwashers,
lockwashers, and capscrews. Torque capscrews - refer
to
, page 1-16 for proper
torque value.
2.
Connect hydraulic hoses to ports on valve as tagged
during removal.
3.
Connect electrical connectors to valve as tagged during
removal.
Functional Tests
1.
Start and idle engine.
2.
With unit on outriggers, check for proper two/four wheel
operation.
FIGURE 2-11
2
3
4
1
4
3
1
2
Differential Lock Manifold Valve
1
Output Port (to front and rear axles)
2
Tank Port (to tank port on transmission)
3
Pressure Port (from transmission port
4
Solenoid Valve — Differential Lock Switch
10107
10106
Содержание Grove GRT9165
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