Toro Groundsmaster
3500-D - Piston Pump (P3) Flow & Traction Relief Pressure Test

Groundsmaster 3500--DHydraulic System (Rev. D) Page 4 -- 32
Piston Pump (P3) Flow and Traction Relief Pressure Test (Using Tester with Pressure
Gauges and Flow Meter)
High Pressure
Low Pressure
Return or Suction
Flow
M4
M5
BI--PASS
VALVE
P3
PISTON PUMP
LOWER
PORT
UPPER
PORT
M6
TO GEAR PUMP SUCTION
100 to 150 psi
TOP PORT
FORWARD
TRACTION WHEEL MOTORS
3000 psi
THROUGH CASE DRAIN
(HYDROSTAT)
TRACTION
RELIEF
FROM HYDRAULIC
MANIFOLD (CHARGE) PORT