Hydraulic Power Generating System

B-8 Hydraulic Pilot Control Valve (Swing, Elevating, Telescoping,

B-9 Hydraulic Valve (Pilot Pressure)...38

B-10 Check Valve (Gauge Isolator).......44

Hydraulic Power Generating System

B-1 Hydraulic Power Generating System

1. General

Hydraulic Circuit for Carrier

[NOTICE]

If the machine is not equipped with the optional emergency steering, two points "A" are directly joined and three portions "*1" are plugged.

1. The hydraulic power for this crane is generated by the double variable displacement pump, double gear pump, and optional gear pump for the emergency steering circuit.

2. The double variable displacement pump supplies oil to the circuits of elevating, telescoping, main winch, and auxiliary winch. This double variable displacement pump is driven only when the PTO switch is turned on.

3. The double gear pump supplies oil to the circuits of outrigger, spring lock,steering, pilot pressure, air conditioner and swing.

4. The gear pump and the hydraulic valve in the emergency steering circuit are optional. They are provided for the case when the double gear pump malfunctions.

Hydraulic Circuit for Crane

Hydraulic Power Generating System

[NOTICE]

For the crane ìIMIDî without the auxiliary winch, seven points ì*2î are plugged.