Greensmaster 3150Hydraulic System Page 4 -- 30
Wheel Motor Efficiency Test (Using Te ster with Flowmeter and Pressure Gauge)
HOSE
UPPER FITTING
PUMP
ASSEMBLY
FRONT
.33 .58
110 to
150 PSI
10.3
20.6
1.24
ENGINE RPM
2850/1650
BOTTOM
PORT
TOP
PORT
B
A
TRANSPORT = 14.1 GPM
TRACTION PUMP
OPTIONAL
3WD KIT
GEAR
PUMP
Left
Motor
Right
Motor
BYPASS
VALVE
10.3
70 to
100 PSI
3000
PSI
3000
PSI
TESTER
CAP
CAP
FROM
RESERVOIR
FROM MANIFOLD
TO MANIFOLD
PORT P1
PORT PT
TO STEERING
VALVE
WHEEL MOTOR EFFICIENCY TEST FOR
LEFT FRONT WHEEL MOTOR SHOWN
Procedure for Wheel Motor Efficiency
Test
NOTE: Over a period of time, a wheel motor can wear
internally.Awornmotorm ayby-- passoiltoitscasedrain
causing the motor to be less efficient. Eventually,
enoughoil losswill causethe wheelmotorto stallunder
heavyloadconditions.Continuedoperationwithaworn,
inefficient motor can generate excessive heat, cause
damageto sealsand othercomponentsin thehydraulic
system and affect overall machine performance.
1. Make sure hydraulic oil is at normal operating tem-
peraturebyoperatingthemachineforapproximatelyten
(10) minutes. Make sure the hydraulic tank is full.
2. Parkmachineonalevelsurfacewiththecuttingunits
lowered and off. Make sure engine is off.
CAUTION
Before continuing further, read and become f a-
miliar with Precautions for Hydraulic Testing.
3. Make sure that traction pedal is adjustedto the neu-
tral position (see Traction Unit Operator ’s Manual).
4. Attachaheavychaintotherearofthemachineframe
and an immovable object to prevent the machine from
moving during testing.
5. Ifmachinehas3wheeldrive,blockuptherearwheel
offthegroundtoallowflowthroughtherearwheelmotor.
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