Toro Greensmaster 3200 Service Manual page 105

Procedure for Manifold Relief Valve (R2) Pressure
Check:
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine for approximately 10
minutes.
2. Make sure machine is parked on a level surface with
the cutting units lowered. Make sure engine is off and
the parking brake is engaged.
3. Read Precautions for Hydraulic Testing.
4. Disconnect hose connection attached to the hy-
draulic fitting at port P2. Connect T–connector and
gauge to the fitting and hose connection.
5. For gasoline engines, change the following electri-
cal connections:
A. Disconnect the connectors for solenoids S3 and
S4 at the manifold block.
B. Connect male connector from solenoid S3 to the
female connector (yellow/black and black), located
on the wiring harness, for solenoid S4.
C. Connect male connector from solenoid S4 to the
female connector (orange/blue and black), located
on the wiring harness, for solenoid S3.
6. For diesel engines, change the following electrical
connections:
A. Disconnect the connectors for solenoids S3 and
S4 at the manifold block.
B. Connect male connector from solenoid S3 to the
female connector (gray and black), located on the
wiring harness, for solenoid S4.
C. Connect male connector from solenoid S4 to the
female connector (violet and black), located on the
wiring harness, for solenoid S3.
7. Start engine and move throttle to full speed. Engage
the cutting units.
A. Units with a diesel engine (3025
B. Units with a gasoline engine (2800
Greensmaster 3200/3200–D
8. Watch pressure gauge carefully while holding the
Raise/Lower – Mow Control lever at RAISE until the
manifold relief opens. Relief pressure should be 300
PSI. Release lever and shut off engine.
9. For gasoline engines, change the following electri-
cal connections:
A. Disconnect the connectors for solenoids S3 and
S4 at the manifold block.
B. Connect male connector from solenoid S4 to the
female connector (yellow/black and black), located
on the wiring harness, for solenoid S4.
C. Connect male connector from solenoid S3 to the
female connector (orange/blue and black), located
on the wiring harness, for solenoid S3.
10. For diesel engines, change the following electrical
connections:
A. Disconnect the connectors for solenoids S3 and
S4 at the manifold block.
B. Connect male connector from solenoid S4 to the
female connector (gray and black), located on the
wiring harness, for solenoid S4.
C. Connect male connector from solenoid S3 to the
female connector (violet and black), located on the
wiring harness, for solenoid S3.
11. Disconnect test gauges from manifold and hoses.
Reconnect hoses to hydraulic fittings on manifold.
50 RPM).
28 RPM).
Page 5 – 33 Rev. A
Hydraulic System