Toro Groundsmaster 3500 30807 - Page 96

Groundsmaster 3500Hydraulic System Page 5 − 38
Traction Unit Testing − Wheel Motor Efficiency Tests
Figure 26
High Pressure
Low Pressure
Return or Suction
Flow
M4
M5
UPPER PORT
M6
FORWARD
FRONT WHEEL MOTORS
FRONT WHEEL MOTOR TEST
(individually)
TESTER
WITH
PRESSURE
GAUGES
AND
FLOW
METER
REAR
WHEEL
MOTOR
PISTON PUMP
(HYDROSTAT)
LOWER PORT
PISTON PUMP
(HYDROSTAT)
M4
M5
UPPER PORT
M6
FORWARD
FRONT WHEEL MOTORS
REAR WHEEL MOTOR TEST
TESTER
WITH
PRESSURE
GAUGES
AND
FLOW
METER
REAR
WHEEL
MOTOR
PISTON PUMP
(HYDROSTAT)
LOWER PORT
PISTON PUMP
(HYDROSTAT)
TOP PORT
M4
M5
BY−PASS
VALVE
P3
PISTON PUMP
LOWER
PORT
UPPER
PORT
M6
TO GEAR PUMP
100 to 150 psi
FORWARD
FRONT WHEEL MOTORS
3500 psi
FROM
(HYDROSTAT)
TRACTION
RELIEF
FRONT WHEEL MOTOR TEST
(together)
SUCTION
THROUGH
CASE DRAIN
TESTER
WITH
PRESSURE
GAUGES
AND
FLOW
METER
HYDRAULIC
MANIFOLD
(CHG) PORT
REAR
WHEEL
MOTOR
200 to 300 psi