2-58 Published 08-25-09, Control # 077-04
HYDRAULIC SYSTEM RT9130E SERVICE MANUAL
PRESSURE BLEED-OFF VALVE
Description
The pressure bleed-off valve (Figure 2-32) is used to
manually drain to reservoir any trapped pressure from
behind the outrigger box removal quick disconnects or the
telescope boom removal quick disconnects.
The in-line plumbed pressure bleed-off valve consists of a
knob adjustable flow control valve and a shuttle valve. The
shuttle valve acts as a directional selector, allowing only the
pressurized circuit to open to the flow control drain valve.
Maintenance
Removal
1. Tag and disconnect hydraulic lines from valve. Cap or
plug all openings and remove valve.
Installation
1. Connect the hydraulic lines as tagged during removal.
Hydraulic Schematic
FIGURE 2-32
6110-2
7318
1
2
4
5
3
Item Description
1 Tank Port
2 To Outrigger Extend Port “B”
3 To Outrigger Retract Port “A”
Item Description
4 Shuttle Valve
5 Adjustable Flow Control Valve
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