Cub Cadet PRO X 636 Manuel De L'opérateur page 25

NOTE: After adjusting the front cruse bar the mower may require tracking
adjustment. If necessary refer to Mower Tracking in this section.
Deck Leveling
NOTE: Check the mower's tire pressure before performing any deck leveling
adjustments. Refer to Tires for information regarding tire pressure. Always level
the deck side-to-side before front to rear.
SIDE-TO-SIDE LEVELING
1. Park the mower on a flat paved surface, engage the parking brake, shut off the
engine, remove the key from the ignition switch, disconnect the spark plug wires,
using the deck height index position the mowing deck into the 4" (10.2 cm)
height of cut position (the 4" height of cut position is recommended in order for
one to see and obtain a measurement. Any height of cut position is acceptable as
long as a proper measurement can be taken) and rotate both outside blades so
that they are perpendicular with the mower.
2. Measure the distance from the outside of the left blade tip to the ground
and the distance from the outside of the right blade tip to the ground. Both
measurements taken should be equal. If they're not, proceed to the next step.
3. Adjust the eyebolt (a) at the left front of the deck so that the blade-to-ground
height at the right outside blade tip matches that of the left outside blade tip.
This is done by loosening the jam nuts (b) on the eyebolt (a) and tightening the
upper jam nut (b) to raise the deck and loosening the jam nut (b) to lower the
deck. The right outer blade tip height is fixed by the right, front eyebolt (a) so you
must adjust the left outer tip to match it (Figure 31).
(a)
(b)
4. Once the proper adjustment is made, re-tighten the jam nuts (b) (Figure 31).
FRONT-TO-BACK LEVELING
1. Park the mower on a flat paved surface, engage the parking brake, shut off the
engine, remove the key from the ignition switch, disconnect the spark plug wires,
using the deck height index position the mowing deck into the 4" (10.2 cm)
height of cut position (the 4" (10.2 cm) height of cut position is recommended
in order for one to see and obtain a measurement. Any height of cut position
is acceptable as long as a proper measurement can be taken) and rotate both
outside blades so that they are parallel with the mower.
PRODUCT CARE
(b)
(a)
Figure 30
Figure 31
2. Measure the blade-to-ground height at the right rear blade tip. Again be sure
to measure the blade tip at the rear of the right blade when aligned along the
mower center line. The blade-to-ground height at the rear of the blade tip
should be 1⁄8" to 1⁄4" (3.2 to 6.4 mm) higher than the front tip. This is referred
to as blade pitch. The same height difference should be true for the left blade,
measured front and back. The pitch should not exceed 1⁄16" (1.6 mm) if cut
height is below 1-1⁄2" (3.8 cm).
3. Loosen the jam nuts (b) at the rear left and right of the deck eyebolts (a)
(Figure 31).
4. Start at the right rear to raise the rear of the deck, tighten the upper jam nut (b)
to raise the deck or loosen the upper jam nut (b) to lower the deck (Figure 31).
5. Adjust the jam nut (b) at the left rear to take the "slack" out of the threaded rod
(Figure 31).
6. Tighten both lower jam nuts (b) to secure the deck adjustment (Figure 31).
7. The final adjustment would be to take the "slack" out of the left rear linkage if
the rear of the deck was raised by adjusting the jam nuts (b) on the eyebolt (a).
Loosen the jam nuts (b) and tighten the upper jam nut (b) to remove "slack"
(Figure 31).
8. In many cases it will be necessary to adjust deck height using both eyebolt
(a) adjustments and pitch adjustment to achieve the correct blade-to-ground
heights (Figure 31). If you remember that the front right blade tip adjustment is
fixed and you level to that height, adjusting the decks will be simplified.
Adjusting the Front Gauge Wheels (if equipped)
Keep hands and feet away from the discharge opening of the cutting deck.
The front gauge wheels on the mower deck are an anti-scalp feature, and should not
ride on the ground. The front gauge wheels should be approximately 1⁄4-1⁄2" (6.4 to
12.7 mm) above the ground when the deck is set in the desired height setting.
Using the deck lift handle, set the deck in the desired height setting, then check the
gauge wheel distance from the ground below. If necessary, adjust the front gauge
wheels as follows:
1. Visually check the distance between the front gauge wheels and the ground. If
the gauge wheels are near or touching the ground, they should be raised. If more
than 1⁄2" (12.7 mm) above the ground, they should be lowered.
2. Remove the lock nut (a) securing one of the front gauge wheels (b) to the deck.
Remove the front gauge wheel (b), hex screw (c) and spacer (d) (Figure 32).
(a)
NOTE: There are a pair of front gauge wheels on the nose of the 54" and
60" decks.
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WARNING
(b)
(d)
(e)
(c)
Figure 32