SPECIFICATIONS

Vehicle Systems Systems Operation
The return hydraulic oil from the cylinders flows
through hydraulic control valve (6), line (14), into fil-
ter (10) and hydraulic tank (13). Relief valve poppet
(9) will release extra pressure to the hydraulic tank
when the pressure in the lift circuits goes higher than
relief valve pressure shown in the Control Valve sec-
tion of SPECIFICATIONS. Relief valve poppet (11)
does the same thing for the sideshift or tilt circuit
when pressure goes higher than the auxiliary relief
valve pressure shown in the Control Valve section of
SPECIFICATIONS.
The speed at which the lift cylinder(s) are lowered is
controlled by flow regulator (7).
Excess flow protector (2) and (4) will act as a flow
control valve if an line between them and flow control
valve (7) is broken when the mast is raised or low-
ered. This prevents a sudden fall of the mast or car-
riage if an oil line is broken.
The tilt forward, tilt back and sideshifter speed are
controlled by flow control valves in hydraulic control
valve (6). There is an anti-cavitation valve inside the
tilt spool to prevent cavitation (development of air
pockets) in tilt cylinders (8).
For a complete hydraulic schematic, see the foldout
in the back of this module.
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