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Groundsmaster 3505--DHydraulic System Page 4 -- 28
Charge Relief Valve Pressure Test (Using Pressure Gauge)
Working Pressure
Low Pressure (Charge)
Return or Suction
Flow
M4
M5
BI--PASS
VALVE
P3
HYDROSTAT
P1 P2
ENGINE
RPM
GEAR PUMP
LOWER
PORT
UPPER
PORT
INTERNAL CASE DRAIN
STRAINER
FORWARD
TRACTION WHEELMOTORS
TO HYDRAULIC
FROM HYDRAULIC MANIFOLD
MANIFOLD (P1) PORT
(CHG) PORT
TO STEERING CONTROL
VALVE (IN)P ORT
FROM OIL
FILTER
PRESSURE
GAUGE
100 to 150 psi
3000 psi
TRACTION
RELIEF
CHARGE
RELIEF