g026924
Figure 13
1.
Wheel hub
3.
O–ring
2.
Wheel hub nut
Important:
Do not over–tighten the wheel
hub nut because the bearing will wear
rapidly.
3.
Check the O–ring to assure it is not damaged,
and make sure that it is seated in the inside
diameter of the wheel hub (
).
Important:
An O–ring that is damaged or
installed incorrectly will allow oil to leak out
of the gear case. If enough oil leaks out,
mechanical damage will likely result.
4.
If pneumatic wheels are installed, set the tire
pressure at 241.3 Kpa (35 psi).
5.
Install the drive wheels with cap screws and lock
washers (
).
g026925
Figure 14
Checking the Fasteners
and Reel Bearings
1.
Rotate the center adjusting knob until the
bedknife does not contact the reel. Try to spin
the reel. If the reel does not spin, adjust the reel
bearings; refer to Adjusting the Reel Bearing in
the Maintenance Section. If the reel spins freely,
proceed to the next step.
2.
Try to move the reel back and forth. If the reel
can be moved, adjust the reel bearings; refer to
Adjusting the Reel Bearings (page 11)
.
3.
Check and tighten all nuts, bolts, and screws to
ensure that all parts are secure.
Adjusting the Reel Bearings
If end play is evident in the reel or if the cutting unit
has been disassembled, an adjustment to the reel
bearing may be necessary.
1.
Remove the 4 screws securing the left wheel to
the wheel hub and remove the wheel. Place the
wheel under the gear case for support.
2.
Raise and block the back of the cutting unit
until there is 0.178 to 0.203 m (7 to 8 inches)
between the bottom of the gear case extending
behind the roller bracket and the level surface.
3.
Remove the 3 cap screws securing the
inspection cover to the gear case cover.
4.
In small increments, rotate the adjusting nut
on the reel shaft, in the clockwise direction to
remove all end play from the reel.
Note:
Stop the reel from rotating.
5.
When the end play is removed, rotate the nut an
additional 1/4 turn to preload the bearing.
6.
Install the inspection cover and the wheel.
Grinding the Cutting Unit
Note:
For detailed sharpening information, refer
to the
Toro Manual for Sharpening Reel and Rotary
Mowers
, Form No. 09168SL.
New and old bedknives should be ground attached
to the bedbar; this ensures rigidity during grinding
and ensures a true knife. Refer to
when
grinding the knives and obtain as near as possible the
relief angles indicated. In grinding, avoid hard contact
between the knife and the grinding wheel. Hard
contact causes excessive heat buildup, resulting in
premature wearing of the grinding wheel and reduced
life of the knife.
11
