Troubleshooting 81
Hydraulic System
The following is a description with flow diagrams of what happens in the hydraulic system of the
telescopic system during the loading, packing and unloading operations of the unit.
Operator action is presented and then a description of the hydraulic flow and the interaction of
system components (i.e., valves and cylinders) follows. Before proceeding to the flow diagram, refer
to the illustration on next page and become familiar with the system component nomenclature.
System Component Nomenclature
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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