Wheel Motor Efficiency Test - Toro Greensmaster 3150 Service Manual

Wheel Motor Efficiency Test (Using Tester with Flowmeter and Pressure Gauge)
WHEEL MOTOR EFFICIENCY TEST FOR
LEFT FRONT WHEEL MOTOR SHOWN
TO STEERING
VALVE
TO MANIFOLD
PORT P1
GEAR
.33 .58
PUMP
FROM
RESERVOIR
Procedure for Wheel Motor Efficiency Test
NOTE: Over a period of time, a wheel motor can wear
internally. A worn motor may by--pass oil to its case drain
causing the motor to be less efficient. Eventually,
enough oil loss will cause the wheel motor to stall under
heavy load conditions. Continued operation with a worn,
inefficient motor can generate excessive heat, cause
damage to seals and other components in the hydraulic
system and affect overall machine performance.
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine for approximately ten
(10) minutes. Make sure the hydraulic tank is full.
2. Park machine on a level surface with the cutting units
lowered and off. Make sure engine is off.
Hydraulic System
FROM MANIFOLD
PORT PT
TRACTION PUMP
1.24
110 to
150 PSI
HOSE
TRANSPORT = 14.1 GPM
3000
PSI
3000
PSI
70 to
100 PSI
Before continuing further, read and become fa-
miliar with Precautions for Hydraulic Testing.
3. Make sure that traction pedal is adjusted to the neu-
tral position (see Traction Unit Operator's Manual).
4. Attach a heavy chain to the rear of the machine frame
and an immovable object to prevent the machine from
moving during testing.
5. If machine has 3 wheel drive, block up the rear wheel
off the ground to allow flow through the rear wheel motor.
Page 4 - - 30
PUMP
UPPER FITTING
ASSEMBLY
FRONT
TESTER
TOP
PORT
A
Left
BYPASS
Motor
VALVE
ENGINE RPM
2850/1650
B
BOTTOM
PORT
CAUTION
Greensmaster 3150
Right
CAP
Motor
10.3 10.3
CAP
20.6
OPTIONAL
3WD KIT