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Brake Maintenance
Adjusting the Brakes
A brake adjustment rod is located on each side of the machine
so that you can adjust the brakes equally.
1. While moving forward in transport speed, press the
brake pedal; both wheels should lock equally.
CAUTION
Testing the brakes in a confined area where
others are present could cause injury.
Always check the brakes in a wide,
open-spaced, flat area which is free of other
persons and obstructions before and after
adjustment.
2. If the brakes do not lock equally, adjust the brakes as
follows:
A. Disconnect the brake rods by removing the cotter
pin and clevis pin
Figure 57
1. Clevis pin and cotter pin
2. Jam nut
B. Loosen the jam nut and adjust the clevis
accordingly
(Figure
C. Assemble the clevis to the brake shaft
D. Check the amount of free travel of the brake
pedal. There should be 13 to 26 mm (1/2 to 1
inch) travel before the brake shoes make contact
with the brake drums. Adjust, if necessary, to
achieve this setting.
E. While moving forward in transport speed, press
the brake pedal; both brakes should lock equally.
Adjust them, if necessary.
Important: Burnish the brakes annually; refer to the
Burnishing the Brakes (page 17)
(Figure
57).
3. Clevis
4. Brake shaft
57).
(Figure
section.
Controls System
Maintenance
Adjusting the Cutting Unit
Lift/Drop
The cutting unit lift/drop circuit is equipped with a
flow-control valve
factory at approximately 3 turns open, but an adjustment
may be required to compensate for differences in hydraulic
fluid temperatures, mowing speeds, etc. If an adjustment is
required, proceed as follows:
1. Flow-control valve
Note: Allow the hydraulic fluid to reach full operating
temperature before adjusting the flow control valve.
1. Raise the seat and locate the flow-control valve for the
center-pull frame
side of the hydraulic manifold.
2. Loosen the jam nut on the adjusting knob on the flow
control.
3. Rotate the knob 1/4-turn counterclockwise if the
center cutting unit is dropping too late or 1/4-turn
clockwise if the center cutting unit is dropping too early.
57).
4. When finished, tighten the set screw.
9
41
(Figure
58). This valve is preset at the
Figure 58
(Figure
58) which is located on the
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