Boom Extend Lockout Valve; Description; Hydraulic Diagnostic Ports; General - JLG Lull 1044C-54 II Series Service Manual

Boom Extend Lockout Valve

Description

Hydraulic Diagnostic Ports

General

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Fig. 5-32: Boom Extend Lockout Valve

(Ref. Fig. 5-32) The boom extend lockout valve is used on models with
outriggers and is standard equipment on 1044C-54 models. It is located on
top of the rear axle stabilizer control valve.
The eight (8) hydraulic diagnostic ports are located beneath the operator's
compartment and can be accessed through the opening in the operator's
step.
PUMP 1

Fig. 5-33: Hydraulic Diagnostic Ports - Models with Mid-Inlet Hydraulics

(Ref. Fig. 5-33) The hydraulic ports on models with mid-inlet hydraulics
are:
Supply, Pressure, and Return Hydraulics
REAR OSC. REAR OSC.
PUMP 2 LOCK (G1) LOCK (G2) BRAKES STEERING
C D
SV1
PD1
OR3
Front View
PILOT ACCUM.
5-49