Figure 77
1. Test port I
2. Test port H
T he counterbalance test por t ( Figure 78 ) is used to
adjust the pressure in the counterbalance circuit.
R ecommended counterbalance pressure is 470 psi
(3241 kP a). T o adjust the counterbalance pressure ,
rotate the adjusting screw ( Figure 78 ) cloc kwise
to increase the pressure or countercloc kwise to
decrease the pressure .
Figure 78
1. Counterbalance test port 2. Counterbalance adjusting
screw
Adjusting the Cutting Unit
Flow Control
T he flo w control v alv e ( Figure 79 ) is used to adjust
the rate at whic h the cutting unit lo w ers .
Figure 79
1. Flow control valve
Mower Maintenance
Pivoting (Tilting) the Front
Cutting Unit Upright
Note: Although not needed for nor mal
maintenance procedures , the front cutting unit
can be pi v oted (tilted) to an upright position.
Should y ou desire to tilt the cutting unit, proceed
as follo ws:
1. Raise the center and wing cutting units slightly
off of the floor , set the parking brak e , and stop
the engine . R emo v e the ignition k ey .
2. R emo v e the hair pin cotter securing dampers
to lift ar ms ( Figure 80 ). Pi v ot damper to w ard
dec k housing .
Figure 80
1. Damper
2. Hair pin cotter
3. R emo v e the hair pin cotter and clevis pin
securing the height-of-cut c hains to the rear of
the cutting unit ( Figure 81 ).
51
To Next Page
Loading...
