Traction Circuit Charge Pressure Test
TO STEERING CONTROL VALVE AND CHARGE CIRCUIT
TO MOW CONTROL
(FRONT CUTTING UNITS)
TO LIFT CONTROL MANIFOLD
TO MOW CONTROL
(REAR CUTTING UNITS)
GEAR
PUMP
BYPASS
VALVE
CROSSTRAX
MANIFOLD
PISTON
(TRACTION)
PUMP
PRESSURE
GAUGE
FROM STEERING CONTROL VALVE
OIL FILTER
REMOVED
Figure 36
The traction circuit charge pressure test should be per-
formed to make sure that the traction charge circuit is
functioning correctly.
3. Read Precautions For Hydraulic Testing in this sec-
tion.
ProcedureforTractionCircuitChargePressureTest
CAUTION
1.
perature by operating the machine under load for
approximately ten (10) minutes.
Make sure hydraulic oil is at normal operating tem-
Before opening hydraulic system, operate all hy-
draulic controls to relieve system pressure and
avoid injury from pressurized hydraulic oil. See
Relieving Hydraulic System Pressure in the Gen-
eral Information section of this chapter.
2.
decks lowered and PTO switch off. Make sure engine is
off. Apply the parking brake.
Park machine on a level surface with the cutting
Hydraulic System
Page 4 -- 36
Groundsmaster 4300--D
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