Toro Greensmaster 3150 Service Manual page 60

Piston (Traction) Pump Flow Test (Using Tester with Flowmeter and Pressure Gauge)
TO STEERING
VALVE
TO MANIFOLD
PORT P1
GEAR
.33 .58
PUMP
FROM
RESERVOIR
Procedure for Piston (Traction) Pump Flow Test
This test 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-
perature by operating the machine for approximately ten
(10) minutes.
2. Park machine on a level surface with the cutting units
lowered and off. Make sure engine is off. Make sure the
hydraulic reservoir is full.
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 the traction 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).
Page 4 - - 32
PUMP
UPPER FITTING
ASSEMBLY
FRONT
TESTER
TOP
PORT
A
Left
BYPASS
Motor
VALVE
ENGINE RPM
2850/1650
B
BOTTOM
PORT
CAUTION
Greensmaster 3150
Right
Motor
10.3 10.3
20.6
OPTIONAL
3WD KIT