Leach 2R-III - Raising Tailgate

88 Troubleshooting
Raising Tailgate
Operator Action
Operator opens the packer panel to release pressure. Operator loosens and swings away from the
body the tailgate clamps. Operator depresses the speed-up button, then moves the tailgate lift lever
rearward.
Hydraulic Sequence
Moving the tailgate lift lever rearward shifts a spool in the FCV (Front Control Valve) causing flow to
the tailgate lift cylinders. The cylinders extend, causing the tailgate to raise. Excess fluid flow from the
FCV (Front Control Valve) returns back to tank.
SPEED UP BUTTON
TAILGATE LIFT
LIFT LEVER
cy
li
n
d
ers.
Th
e cy
li
n
d
ers ex
t
en
d
, caus
i
ng
th
e
t
a
il
ga
t
e
t
o
raise. Excess fluid flow from the FCV (Front Control Valve)
returns back to tank.
MAIN CONTROL
VALVE
HYDRAULIC
FLUID TANK
PUMP
FRONT
CONTROL VALVE
TELESCOPIC
CYLINDER
TAILGATE LIFT
CYLINDER
CARRIER
CYLINDER
PACKER
CYLINDER
CARRIER
CYLINDER
TAILGATE LIFT
CYLINDER
P.O. CHECK
VALVE
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PRESSURE
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RETURN
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