Grove Published 01-29-2015, Control # 512-01 2-37
TMS700E SERVICE MANUAL HYDRAULIC SYSTEM
OUTRIGGER SELECTOR VALVE
Description
The outrigger selector valve (Figure 2-24) 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 rear face of the carrier frame front
cross member forward of the swivel. The valve has two
sections, an inlet and a working station
The inlet station contains a 228 bar (3300 psi) relief valve
and a two position two way solenoid valve that is normally
open by-passing oil from the inlet port to the tank port.
Activation of the outriggers will energize the solenoid valve to
close, pressurizing the working sections. The second section
controls the outrigger extend and retract. It contains a three
position four way solenoid directional control valve and a bolt
on two pilot operated check valves with integral thermal relief
valves, one for the extend set at 262 bar (3800 psi) and one
for the retract set at 20.7 bar (300 psi).
Maintenance
Removal
1. Tag and disconnect the electrical connectors to the
integrated outrigger valve.
2. Tag and disconnect the hydraulic lines to the integrated
outrigger valve. Cap or plug the lines and ports.
3. Remove the four bolts, nuts and washers securing the
integrated outrigger valve to the crane. Remove the
valve as a complete assembly.
Installation
1. Put the integrated outrigger valve on its mount. Secure
the valve with the washers, nuts and bolts.
2. Connect the hydraulic lines to the integrated outrigger
valve as tagged during removal.
3. Connect the electrical connectors to the integrated
outrigger valve as tagged during removal.
Functional Check
Cycle an outrigger cylinder several times. Verify the cylinder
extends and retracts properly.
FIGURE 2-24
6783-1
6783-2
2
4
6
1
7
3
4
9
5
8
1
2
5
8 (Hidden on
back side)
Item Description
1 Port P (SAE - 12 ORB)
2 Port T (SAE - 12 ORB)
3 Outrigger Relief Valve (3100 PSI)
4 Port A - Retract (SAE - 10 ORB)
5 Port B - Extend (SAE - 10 ORB)
6 SV1 Coil (12V, 1.4A, 16.8W, IP69K Rated)
Item Description
7 SV2 Coil (12V, 1.4A, 16.8W, IP69K Rated)
8 Port GP (Pressure Check) SAE - 4 ORB
9 SV3 Coil (10V, 1.6A, 15.9W, IP69K Rated)
Reference Only