Rear Lift Cylinder Flow Control Valve - Toro Greensmaster 3200 Service Manual

Rear Lift Cylinder Flow Control Valve

8
1
1. Hose assembly
2. O–ring
3. 90 hydraulic fitting
Removal
1. Before removing any parts from the hydraulic sys-
tem, park machine on a level surface, engage parking
brake, lower cutting units, and stop the engine.
Operate all hydraulic controls to relieve sys-
tem pressure and avoid injury from pressur-
ized hydraulic oil. Controls must be oper-
ated with the ignition switch in RUN and the
engine OFF. Return ignition switch to OFF
when pressure has been relieved. Remove
key from the ignition switch.
2. Clean control valve, hydraulic fittings, and hose
connection.
3. Label all hydraulic connections for reassembly. Dis-
connect hose assembly and O–ring from the hydraulic
fitting. Allow hose to drain into a suitable container. Plug
disconnected hose to prevent contamination.
4. Remove hydraulic fitting and O–ring from flow con-
trol valve. Remove valve and O–ring from hydraulic fit-
ting. Put caps or plug on hydraulic cylinder fitting to
prevent contamination.
Installation
1. Remove plugs from hose assembly and hydraulic
fitting. Lubricate all new O–rings with clean hydraulic oil.
Hydraulic System
7
6
5
4
3
2
4. O–ring
5. Flow control valve
6. O–ring
CAUTION
HYDRAULIC CYLINDER
Figure 63
2. Install flow control valve and O–ring to the hydraulic
fitting on the hydraulic cylinder. Make sure adjustment
knob faces forward.
3. Install O–ring and hydraulic fitting to the flow control
valve. Install O–ring and hose assembly to the hydraulic
fitting.
4. Adjust flow control valve as follows:
A. Turn adjustment knob in fully clockwise, and
then turn out counterclockwise 3 turns.
B. Adjust knob no more than 1/2 turn in either direc-
tion until the number 8 is aligned with the dimple on
the valve body. Lock adjustment knob by tightening
set screw.
Page 5 – 80
FLOW CONTROL VALVE
7. 90 hydraulic fitting
8. Hydraulic cylinder
Figure 64
Greensmaster 3200/3200–D