Lull 1044C-54 Series II Service Manual - Manual (Page 131)

Supply, Pressure, and Return Hydraulics
31200079 5-49
Boom Extend Lockout Valve
Description
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.
Hydraulic Diagnostic Ports
General
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.
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:
SV1
PD1
OR3
C D
K
1
154
Front View
PUMP 1 PUMP 2 BRAKES STEERING PILOT ACCUM.
REAR OSC.
LOCK (G1)
REAR OSC.
LOCK (G2)
K
1168