Lull 6K Service Manual - Manual (Page 236)

Supply, Pressure, and Return Hydraulics
5-92 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
• Brakes – Used for reading pressure of the brake circuit and is used to
indicate when pressure is eliminated from the system prior to discon-
necting hydraulic hoses. Pressure limit is 330 psi.
• Steering – Used for reading pressure of the steering circuit. Pressure
limit is 2200 psi.
• Pilot – Used for reading pressure of the joystick circuit. Pressure limit
is 450 psi.
• Accum. – Used for reading of pressure in the accumulator charging
circuit. Pre-charge pressure is 400 psi. The low pressure limit is 1200
psi and the high pressure limit is 1600 psi.
CAUTION: To ensure that system is kept free of dirt and contamination,
always cap all ports when not in use.
Roll-Back Hose Tray
General
Fig. 5-60: Roll-Back Hose Frame Location - Control Manifold Hydraulics
(Ref. Fig. 5-60) The roll-back hose tray is located near the middle of the
machine, above the valve plate. It is used with models 644B, 844C, and
1044C.
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