Leach 2R-III - Packing Refuse (2)

Troubleshooting 87
Packing Refuse (2)
Hydraulic Sequence
While the carrier and packer panels are moving up, compacting refuse against the pushout panel,
pressure is building in the case end of the carrier cylinders. This pressure is also building in a pilot line
from the carrier valve section to the FCV (Front Control Valve) pushout section. When this pressure
reaches 1800 PSI (124 BAR), a relief (resistance) cartridge opens in the FCV (Front Control Valve)
pushout section, allowing some case end pressure from the telescopic pushout cylinder to return to
tank. This allows the pushout panel to come forward slightly.
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
TRAPPED OIL
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