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Wheel Hub Slotted Nut
Check after every 500 operating hours.
The slotted nut needs to be torqued to 125 ft–lbs
(169.5 N m).
1.
Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2.
Remove cotter pin.
3.
Torque slotted nut to 125 ft–lbs (169.5 N m)
(Fig. 41).
4.
Check the distance from bottom of slot in nut to
inside edge of hole. Two threads or less should
be showing (Fig. 41).
5.
If more than two threads are showing remove nut
and install washer between hub and nut
(Fig. 41).
6.
Torque the slotted nut to 125 ft–lbs (169.5 N m)
(Fig. 41).
7.
Tighten nut until the next set of slots line up
with the hole in the shaft (Fig. 41).
8.
Replace cotter pin.
4
5
2
Figure 41
1. Slotted Nut
2. Two threads or less
showing
1
3
3. Hole in threaded shaft
4. Washer (if needed)
5. Slot
Mower Leveling
1.
Position mower on a flat surface. Stop the
engine, set the parking brake, remove the key
and disconnect the spark plug wire(s) from the
spark plug(s).
2.
Check tire pressure of all four (4) tires. If
needed, adjust to 13 psi (90 kPa)
3.
Set anti–scalp rollers to top holes or remove
them completely for this adjustment.
4.
Raise the deck to the transport position (Fig. 42).
Take force off of the two large deck lift springs
by loosening jam nut and front spring nut, in
front of each spring, as far as possible (Fig. 43).
5.
Place two 1-1/4" (35 mm) thick blocks under
rear left and right lower edge of mower. Place
one 1-3/8" (44 mm) block under front center
lower edge of mower. Not under anti–scalp roller
brackets. Lower mower to the 1-1/2" (38 mm)
height-of-cut position (Fig. 42).
Figure 42
1. Transport position
6.
Loosen bottom chain bolt in slot at rear of deck.
Repeat for opposite side. (Fig. 43).
Note:
Do not loosen front chain hardware.
7.
Loosen front and rear locking nut on either side
of front swivel. Loosen until front chains are
loose and deck is supported by blocks. Repeat
for opposite side. (Fig. 43).
Maintenance
1
2
m–4122
2. 1-1/2" (38 mm)
height-of-cut
51
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