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Cutting Deck
Maintenance
Separating the Cutting Decks
from the Traction Unit
1. Position the machine on a level surface, lower the
cutting decks to the floor, shut the engine off, and
engage the parking brake.
2. Disconnect and remove the hydraulic motor from
the deck (Figure 64). Cover the top of the spindle to
prevent contamination.
Figure 64
1. Motor mounting screws
3. Remove the lynch pin securing the deck carrier frame
to the lift arm pivot pin (Figure 65).
Figure 65
1. Lynch pin
4. Roll the cutting deck away from the traction unit.
Mounting the Cutting Decks to
the Traction Unit
1. Position machine on a level surface and shut engine off.
2. Move cutting deck into position in front of traction
unit.
2. Lift arm pivot pin
3. Slide deck carrier frame onto lift arm pivot pin. Secure
with lynch pin (Figure 65).
4. Install the hydraulic motor to the deck (Figure 64).
Make sure that the O-ring is in position and not
damaged.
5. Grease the spindle.
Servicing the Blade Plane
The rotary deck comes from the factory preset at 5 cm (2.00
inch) height-of-cut and blade rake of 7.9 mm ( 0.310 inch).
The left-hand and right-hand heights are also preset to within
± 0.7 mm (0.030 inch) of the other.
The cutting deck is designed to withstand blade impacts
without deformation of the chamber. If a solid object is
struck, inspect the blade for damage and the blade plane for
accuracy.
Inspecting the Blade Plane
1. Remove the hydraulic motor from the cutting deck and
remove the cutting deck from the tractor.
2. Use a hoist (or minimum of two people) and place the
cutting deck on a flat table
3. Mark one end of the blade with a paint pen or marker.
Use this end of the blade to check all heights.
4. Position the cutting edge of the marked end of the
blade at 12 o'clock (straight ahead in the direction of
mowing) (Figure 66) and measure height from table
to cutting edge of blade.
9:00
5. Rotate the marked end of the blade to the 3 and 9
o'clock positions (Figure 66) and measure the heights.
6. Compare the 12 o'clock measured height to the
height-of-cut setting. It should be within 0.7 mm (0.030
inch). The 3 and 9 o'clock heights should be 3.8±2.2
mm (0.150±.090 inch) higher than the 12 o'clock
setting and within 2.2 mm (0.090 inch) of each other.
If any of these measurements are not within specification,
proceed to Adjusting the Blade Plane.
47
12:00
3:00
6:00
G011353
Figure 66
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