Service Manual

Greensmaster 3250--D
Hydraulic System (Rev. I)
Page 4 -- 99
Rear Lift Cylinder Flow Control Valve
1. Hose assembly
2. O--ring
3. 90
o
Hydraulic fitting
4. O--ring
5. Flow control valve
6. O--ring
7. 90
o
Hydraulic fitting
8. Hydraulic cylinder
Figure 63
6
4
5
7
1
3
2
8
FLOW CONTROL VALVE
HYDRAULIC CYLINDER
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.
CAUTION
Before continuing further, read and become fa-
miliar with General Precautions for Removing
and Installing Hydraulic System Components.
2. 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.
3. 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. Lubricate all new O--rings with clean hydraulic oil.
2. Install O--ring and hydraulic fitting to the flow control
valve.
3. Install flow control valve and O--ring to the hydraulic
fitting on the hydraulic cylinder. Make sure adjustment
knob faces forward.
Figure 64
4. Install O--ring and hose assembly to the hydraulic
fitting.
5. 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.
Hydraulic
System