Toro Groundsmaster 3500 30807 Service Manual page 94

Traction Circuit Testing − Charge Pressure Test
TESTER WITH
PRESSURE GUAGE
AND FLOW METER
LOWER
PORT
100 to 150 psi
CHARGE RELIEF
INTERNAL CASE DRAIN
Hydraulic System
M5
TRACTION WHEEL MOTORS
M4
BY−PASS
VALVE
3500 psi
200−300 psi
P3
HYDROSTAT
TOP PORT
M6
UPPER
PORT
TEE CONNECTOR
AND
PRESSURE GUAGE
ENGINE
RPM
FROM OIL
FILTER
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TO HYDRAULIC
MANIFOLD (P1) PORT
FROM HYDRAULIC MANIFOLD
(CHG) PORT
TO STEERING CONTROL
VALVE (IN) PORT
P1 P2
GEAR PUMP
STRAINER
Groundsmaster 3500
High Pressure
Low Pressure
Return or Suction
Flow