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Groundsmaster 3505--DHydraulic System Page 4 -- 26
Traction Circuit Working Pressure Test (Using Pressure Gauge)
Working Pressure
Low Pressure (Charge)
Return or Suction
Flow
M4
M5
BI--PASS
VALVE
P3
PISTON PUMP
LOWER
PORT
UPPER
PORT
TO GEAR PUMP SUCTION
FORWARD
TRACTION WHEEL MOTORS
FROM HYDRAULIC
MANIFOLD (CHARGE) PORT
THROUGH CASE DRAIN
(HYDROSTAT)
PRESSURE
GAUGE
100 to 150 psi
3000 psi
TRACTION
RELIEF
CHARGE
RELIEF