Toro Groundsmaster 3500 30807 - Piston Pump;Hydrostat (P3) Flow & Relief Pressure Test

Groundsmaster 3500Hydraulic System Page 5 − 42
Traction Circuit Testing − Piston Pump/Hydrostat (P3) Flow and Relief Pressure Test
High Pressure
Low Pressure
Return or Suction
Flow
FROM HYDRAULIC
MANIFOLD
(CHARGE) PORT
M4
M5
P3
PISTON PUMP
M6
TO GEAR PUMP SUCTION
100 to 150 psi
TOP PORT
FORWARD
TRACTION WHEEL MOTORS
3500 psi
THROUGH CASE DRAIN
(HYDROSTAT)
TRACTION
RELIEF
BY−PASS
VALVE
LOWER
PORT
UPPER
PORT
TESTER
WITH PRESSURE GAUGES
AND FLOW METER
200 to 300 psi