Toro Greensmaster
3150 - Page 60

Greensmaster 3150Hydraulic System Page 4 -- 32
Piston (Traction) Pump Flow Test (Using Tester 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
FROM
RESERVOIR
FROM MANIFOLD
TO MANIFOLD
PORT P1
PORT PT
TO STEERING
VALVE
Procedure for Piston (Traction) Pump Flow Test
Thistest measures piston(traction) pump output(flow).
During this test, pump load is created at the flowmeter
using the adjustable load valve on the tester.
1. Make sure hydraulic oil is at normal operating tem-
peraturebyoperatingthemachineforapproximatelyten
(10) minutes.
2. Parkmachineonalevelsurfacewiththecuttingunits
loweredand off.Make sure engineis off. Makesure the
hydraulic reservoir is full.
CAUTION
Before continuing further, read and become f a-
miliar with Precautions for Hydraulic Testing.
3. Make sure the t raction assembly is adjusted to the
neutral position. Also, make sure that transport speed
adjustment allows the piston pump to reach full stroke
(refer to Traction Unit Operator’s manual).