Section 5 supply, pressure, and return hydraulics, General – Lull 1044C-54 Series II Service Manual User Manual

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5-1

Section 5 — Supply, Pressure, and Return Hydraulics

General

Major System Components

Fig. 5-1: Major Hydraulic Components

General Description

(Ref. Fig. 5-1) The hydraulic system consists of the following circuits:

• Boom Extension (See Section 6)

• Boom Hoist (See Section 6)

• Carriage Tilt (See Section 6)

• Transfer Carriage (See Section 6)

• Frame Tilt (See Section 7)

• Auxiliary — 1st - Standard, 2nd - Optional (See Section 6)

• Steering

• Service Brakes (See Section 9)

• Rear Axle Oscillation Lock (See Section 6)

• Outriggers

109

Hydraulic

Pump

Hydraulic

Control

Valve

Hydraulic

Reservoir/

Fuel Tank

Hydraulic

Oil Return

Filter