Toro Groundsmaster 3500 30807 Service Manual page 96

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