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4
Preparing the Cutting Unit
Parts needed for this procedure:
1
Extended splined insert (right-hand threads)
1
Extended splined insert (left-hand threads)
2
Flange locknut (3/8 inch)—Model 133-0151 only
Procedure
Note:
You may discard all removed parts unless
otherwise stated.
1.
Remove all cutting units from the traction unit;
refer to your Operator's Manual.
2.
Remove the carriage bolts and locknuts
securing the height-of-cut (HOC) brackets to the
cutting-unit side plates
Note:
Save the carriage bolts to install the new
height-of-cut brackets.
1. Height-of-cut bracket
2. Carriage bolt
3. Locknut
3.
Loosen the screws securing the height-of-cut
brackets to the front-roller shaft
4.
Remove the existing height-of-cut brackets and
the front roller from the cutting-unit side plates
(Figure
2).
Note:
Save the front roller for later installation.
5.
Restrain the reel for removal; refer to
the Reel for Removing Threaded Inserts (page
18).
6.
Remove the existing splined insert from each
end of the reel shaft using the reel driveshaft
(Figure
2).
Figure 2
4. Screw
5. Front roller
(Figure
Restraining
tool (Part No. TOR4112 for the 5-inch reel and
Part No. TOR4074 for the 7-inch reel). Refer
to
Figure
Important:
side of the cutting unit has left-hand threads.
The splined insert on the right side of the
cutting unit has right-hand threads.
Important:
the reel shaft of any debris or grease before
installing the kit splined insert and groomer
box.
1. Extended splined insert (Torque to 115 to 128 N∙m (85 to
95 ft-lb))
2. Apply medium-strength removable locking compound to
the threads.
7.
Restrain the reel for installation; refer to
Restraining the Reel for Installing Threaded
Inserts (page
8.
For the reel motor side of the cutting unit
only: Apply medium-strength thread-locking
compound (such as Blue Loctite® 243) to the
threads of the new longer splined insert, and
g035987
secure it to the reel shaft. Torque the insert to
115 to 128 N∙m (85 to 95 ft-lb).
Important:
compound to cure for 15 minutes before
continuing the procedure.
9.
For 7-inch cutting units or if a support rod is
2).
installed, remove the support rod and flip the
bolts around as follows:
A.
Remove the 2 flange-head bolts securing
the support rod, and remove the support
rod
3
3.
The splined insert on the left
Clean the threads in the end of
Figure 3
Right side of cutting unit shown
19).
Allow the thread-locking
(Figure
4).
g221766
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