Table of Contents
Advertisement
1
Figure 8
1. Motor mounting screws
3. Remove lynch pin or retaining nut (GM4700 only)
securing deck carrier frame to lift arm pivot pin (Fig. 9).
Figure 9
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.
3. Slide deck carrier frame onto lift arm pivot pin. Secure
with lynch pin or retaining nut (GM 4700 only) (Fig. 9).
4. Install hydraulic motor to deck (Fig. 8). Make sure
O-ring is in position and not damaged.
5. Grease spindle.
Blade Plane
The rotary deck comes from the factory preset at 2.00 inch
height-of-cut and blade rake of 0.310 inch. The left-hand
and right-hand heights are also preset to within 0.030 inch
of the other.
1
1
2
2. Lift arm pivot pin
12
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 blade plane for
accuracy.
Inspecting the Blade Plane
1. Remove hydraulic motor from cutting deck and remove
cutting deck from tractor.
2. Use hoist (or minimum of two people) and place cutting
deck on flat table.
3. Mark one end of blade with paint pen or marker. Use
this end of blade to check all heights.
4. Position cutting edge of marked end of blade at 12
o'clock (straight ahead in direction of mowing)
(Fig. 10) and measure height from table to cutting edge
of blade.
6 o'clock
9 o'clock
12 o'clock
Figure 10
5. Rotate marked end of blade to the 3 and 9 o'clock
positions (Fig. 10) and measure heights.
6. Compare 12 o'clock measured height to the height of
cut setting. It should be within .030 inch. The 3 and 9
o'clock heights should be .150 .030 inch higher than
the 12 o'clock setting and within .030 in. of each other.
If any of these measurements are not within specification,
proceed to Adjusting the Blade Plane, page 13.
3 o'clock
Advertisement
Table of Contents
