Hydraulic Auxiliary Circuit
Figure 3-2 PT-70/80 Hydraulic Auxiliary Circuit
3-2
Rubber Track Loader
3. Circuit Diagrams
OIL COOLER
TO TANK
TO ATTACHMENT
CASE DRAIN Q/C
LOAD SENSE
TO LIFT ARM CYL.
TO AUXILIARY Q/C
TO TANK
FLOW
AUXILIARY PUMP
LOADER CONTROL
LIFT ARM VALVE
PILOT GEN. BLOCK
TO LIFT ARM CYL.
TO TANK
CHARGE PUMP INLET
TO BUCKET CYL.
CHECK VALVE
(80 PSI)
AUXILIARY PUMP INLET
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