Toro 04384 - Page 66

Greensmaster 3250--DHydraulic System Page 4 -- 34
Piston (Traction) Pump Flow Test (Using Tester with Flowmeter and Pressure Gauge)
.33 .58
70--100
PSI
3000 PSI
110--150
PSI
ENGINE RPM
2710/1500
BOTTOM
PORT
TOP
PORT
B
A
TRACTION PUMP
OPTIONAL
GEAR
PUMP
LEFT
RIGHT
MOTOR
3WD KIT
MOTOR
BYPASS
VALVE
3000 PSI
1.24
10.3
20.6
10.3
FROM CONTROL
TESTER
TO STEERING
VALVE
MANIFOLD PORT PT
TO CONTROL
MANIFOLD
PORT P1
FROM HYDRAULIC
RESERVOIR
Procedure for Piston (Traction) Pump Flow Test
This test measures piston pump output (flow). During
thistest,pumploadiscreatedattheflowmeterusingthe
adjustable load valve o n the tester.
1. Make sure hydraulic oil is at normal operating tem-
peraturebyoperatingthemachineforapproximatelyten
(10) minutes.
2. Parkmachineonalevelsurfacewiththecuttingunits
loweredand off.Make sure engine is off.Make sure the
hydraulic tank is full.
CAUTION
Before continuing further, read and become f a-
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).
Also, ensure that pump is at full stroke when traction
pedal is pushed into fully forward position.