Front-To-Back Leveling - DeWalt X536 Instruction Manual

PRODUCT CARE, cont'd

Front-to-Back Leveling

5. 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.
6. Measure the blade-to-ground height at the right rear blade tip. Again be sure to
measure at 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).
7. Loosen the jam nuts (b) at the rear left and right of the deck eyebolts (a). Refer to
Figure 29.
8. 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.
9. Adjust the jam nut (b) at the left rear to take the "slack" out of the threaded rod.
10. Tighten both lower jam nuts (b) to secure the deck adjustment.
11. 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".
12. 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. 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)
WARNING: 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 wheel (b) to the deck.
Remove the front gauge wheel (b), hex screw (c) and spacer (d) (Figure 30).
(a)
nOTE: There are a pair of front gauge wheels on the nose of the 54" deck.
3. Insert the hex screw (c) into the one of three index holes in the front gauge wheel
bracket (e) that will give the front gauge wheel (b) a 1⁄4-1⁄2" (6.4 to 12.7 mm)
clearance with the ground.
4. Note the index hole of the just adjusted front gauge wheel (b), and adjust the other
front gauge wheel (b) into the respective index hole of the other front gauge wheel
bracket (e).
(b)
(d)
(e)
(c)
Figure 30
Service
Servicing Electrical System
Fuse
The 25 amp fuse holder is located on the right side of the mower frame under the control
panel. The fuse is a standard plug-in type automotive fuse. Always use the same capacity
fuse for replacement. Check the 25 amp fuse for any electrical problems.
If you have a recurring problem with blown fuses, have the mower's electrical system
checked by your Service Center or Dealer.
Safety Interlock System & Switch Operation Checks
The following operational checks should be made daily with the mower on a flat surface
and the wheels blocked to prevent unintentional movement of the mower:
PTO Switch
1. Stand on the operator's platform. With the drive control levers in the neutral position
and the parking brake engaged, engage the PTO switch by pulling up on the knob
and try to start the engine. The engine should not start. If it does, the PTO switch
must be replaced. See your Service Center or Dealer.
2. If the engine does not start, disengage the PTO by pressing the knob down and start
the engine. Now engage the PTO and the blades should rotate.
3. If the blades do not turn, the PTO switch must be replaced, the platform switch must
be replaced or the electric PTO clutch must be repaired. See your Service Center
or Dealer.
Parking Brake Switch
4. Stand on the operator's platform. With the drive control levers in the neutral position
and the PTO disengaged, release the parking brake and try to start the engine. The
engine should not start.
5. If it does, the parking brake switch must be repositioned or replaced. See your Service
Center or Dealer. If the engine does not start, engage the parking brake and start
the engine.
Operator's Presence Control Switch
6. With the drive control levers in the neutral position, the parking brake engaged and
the PTO disengaged, start the engine. Disengage the parking brake and step off of
the operator's platform. The engine should stop.
7. If the engine does not stop, the operator's platform switch must be replaced. See your
Service Center or Dealer.
8. With the drive control levers in the neutral position, the parking brake engaged and
the PTO disengaged, stand on the operator's platform and start the engine. Engage
the PTO and the blades should start to rotate. Step off of the operator's platform and
the blades should stop.
9. If the blades do not stop when you step off of the operator's platform, the operator's
platform switch must be replaced. See your Service Center or Dealer.
Electric PTO Clutch
This clutch operates when the engine is running, the operator is on the operator's
platform and the PTO is engaged. This electric clutch is a normally trouble free device.
If a problem develops and the blades do not turn first check the 25 amp fuse, then
investigate the wiring harness and the connections to the platform switch, the PTO
switch and the electric blade clutch. Then check the operator's platform switch, the PTO
switch and finally the electric blade clutch. If the PTO clutch is still not working properly,
see an authorized service dealer.
Rear Tire Removal
1. With the tires on the ground, loosen, but do not remove the four lug nuts (a). See
Figure 31.
2. Elevate the mower so tire is off the ground.
3. Remove the four lug nuts to remove tire from mower.
4. With the mower elevated, use the four lug nuts to reinstall the tire onto the mower.
Hand tighten lug nuts.
5. Lower the mower so tire is on the ground.
6. Torque the lug nuts (a) to 65-70 ft-lbs (88.13-94.91 N-m). in a crisscross pattern.
(a)
Figure 31
English
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