Grove Published 11-22-2016, Control # 345-12 2-55
RT9130E-2 SERVICE MANUAL HYDRAULIC SYSTEM
OUTRIGGER/REAR STEER/OUTRIGGER
BOX PIN REMOVAL VALVE
Description
The outrigger/rear steer/outrigger removal valve Figure 2-32
directionally controls the outrigger circuit, rear steer circuit,
and the pin cylinders that remove the front and rear outrigger
boxes. The valve is mounted on the front face of the carrier
frame member forward of the swivel. The manifold valve has
five stations, an inlet, and four working stations.
The inlet station contains a 2000 psi (13789.5 kPa) relief
valve and a two position two way solenoid valve that is
normally open bypassing oil from the inlet port to the
pressure beyond port. Activation of either outriggers, rear
steer, or removal pin stations will energize the solenoid valve
to close, pressurizing the working sections. The next two
sections control the outrigger box pin removal cylinders.
Each station contains a three position four way solenoid
controlled directional control valve cartridge. The forth
station controls the rear steer. It contains a three position four
way solenoid controlled directional control valve cartridge
and two pilot operated check valve cartridges. The fifth
station controls the outrigger extend and retract. It contains
two bolt-on three position four way solenoid directional
control valves, internally connected in parallel, two pilot
operated check valves with integral 4000 psi (2759 kPa)
thermal relief valve.
Maintenance
Removal
1. Tag and disconnect the electrical connectors to the
integrated outrigger/rear steer valve. Tape the lead
ends.
2. Tag and disconnect the hydraulic lines to the integrated
outrigger/rear steer valve. Cap or plug the lines and
ports.
3. Remove the capscrews, nuts and flatwashers securing
the integrated outrigger/rear steer valve to the frame.
Remove the valve as a complete assembly.
Installation
1. Install the integrated outrigger/rear steer valve to the
frame. Secure the valve with the nuts, flatwashers and
capscrews.
2. Connect the hydraulic lines to the valve as tagged during
removal.
3. Connect the electrical connectors to the valve as tagged
during removal.
Functional Check
1. Cycle an outrigger cylinder several times. Verify the
cylinder extends and retracts properly.
2. Rear steer the crane to the left and to the right several
times. Verify the crane steers properly in both directions.
Item Description
1 Outrigger Solenoid - Retract
2 Outrigger Solenoid - Extend
3 Sequence Relief - Screw Adjustable
4 Two Stage Relief - Screw Adjustable
5 Solenoid for Outrigger Two Stage Relief
6 Solenoid for Port PB
7
Solenoid for Port B2 - Rear Removal Pin
Extend
8
Solenoid for Port A2 - Rear Removal Pin
Retract
9
Solenoid for Port B1 - Front Removal Pin
Extend
10
Solenoid for Port A1 - Front Removal Pin
Retract
Item Description
11 Solenoid for Port BST - Steer Left
12 Solenoid for Port AST Steer Right
13 Pressure Port
14 Tank Port
15 Rear Steer BST Port
16 Rear Steer AST Port
17 Gauge G Port
18 Outrigger B Port - Extend
19 Front Removal Pin A & B Ports
20 Rear Removal Pin A2 & B2 Ports
21 Power Beyond Port
22 Outrigger A Port - Retract
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