Wheel Motor Efficiency Test - Toro 04384 Service Manual

Wheel Motor Efficiency Test (Using Tester with Flowmeter and Pressure Gauge)
TO STEERING
VALVE
TO CONTROL
MANIFOLD
PORT P1
TRACTION PUMP
GEAR
.33 .58
PUMP
FROM HYDRAULIC
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 causing the
motor to be less efficient. Eventually, enough oil loss will
cause the wheel motor to stall under heavy load condi-
tions. Continued operation with a worn, inefficient motor
can generate excessive heat, cause damage to seals
and other components in the hydraulic system and af-
fect 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.
Hydraulic System
FROM CONTROL
MANIFOLD PORT PT
3000 PSI
1.24
3000 PSI
110--150
PSI
70--100
PSI
2. Park machine on a level surface with the cutting units
lowered and off. Make sure engine is off.
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).
Page 4 - - 32
ILLUSTRATION SHOWS TEST
FOR LEFT FRONT MOTOR
TESTER
TOP
PORT
A
LEFT
BYPASS
10.3
MOTOR
VALVE
ENGINE RPM
2710/1500
20.6
B
BOTTOM
PORT
CAUTION
Greensmaster 3250--D
CAP
RIGHT
10.3
MOTOR
CAP
OPTIONAL
3WD KIT