DeWalt 55RI6HN Instruction Manual page 14

English
PRODUCT CARE, cont'd
Electric PTO Clutch
This clutch operates when the engine is running, the operator is in the operator's seat
and the PTO is engaged. This electric clutch is normally a trouble free device. If a problem
develops and the blades do not turn, first check the 20 amp fuse, then investigate the
wiring harness and the connections to the seat switch, the PTO switch and the electric
blade clutch. Then check the PTO switch and the electric blade clutch. If the PTO clutch is
still not working properly, see an authorized service dealer.
Deck Removal
WARNING: The
muffler and any
surrounding parts at
the rear of the mower
may be extremely
hot, and could cause
serious burns. Use
extreme caution when
near the muffler.
Allow the muffler
to fully cool before
removing the belt
from the PTO pulley.
Remove the mower deck from
the mower as follows:
1. Lower the deck to
the ground.
2. Apply the parking brake.
Remove ignition key and
the spark plug cap.
3. Using a 1/2" drive in the
idler pulley bracket (a),
turn the wrench counter-
clockwise and slide the
deck belt off the PTO pulley.
See Figure 16 for 36" decks
and Figure 17 for 48" and
54" decks.
4. Remove the four lynch pins
(a) that secure the deck to
the deck lift assembly. See
Figure 18.
5. Turn front wheels as if to
make a pivot turn.
6. Shift the deck toward the
right side of the mower
and remove.
7. To install, reverse
the process.
12
Replacing the Deck Belt
nOTE: Speed nuts should hold
the carriage screws and tab bolt
in place, if not re-install.
(a)
Figure 16
(a)
Figure 17
Replacing the Blades
(a)
Figure 18
1. Set the parking brake.
Remove ignition key and
both spark plug caps.
2. Remove the PTO belt, (refer
to Deck Removal).
3. To remove the belt covers
(a), remove wing knobs (b)
from the carriage screws (c)
securing it to the deck. See
Figure 19.
4. Remove the belt from
around the pulleys. On 36"
decks, a belt keeper rod (a)
will also need removed.
Remove the two bolts
securing the belt keeper rod
(a) to the deck. See
Figure 19.
WARNING: Avoid
pinching injuries.
Never place your
fingers on the idler
spring or between the
belt and a pulley while
removing the belt.
5. Route the new belt as
shown in Figure 20 for 36"
decks and Figure 21 for 48"
and 54" decks. Then reinstall
the deck.
WARNING: Before performing any maintenance, disengage the PTO, engage
the parking brake lever, turn the ignition key to the OFF position and remove
the key from the switch. Protect your hands by using heavy gloves when
handling the blades. When servicing the mower deck, be careful not to cut
yourself on the sharpened blades.
1. Remove the deck as
instructed in the Deck
Removal section.
2. Jack up the front of the
mowing deck about
one foot and block it in
that position.
3. Wrap a rag around one end
of the blade (a) and grasp it
to prevent it from turning,
or secure the blade (a) by
placing a block of wood (b)
between the blade (a) and
the deck housing (c). See
Figure 22.
4. Remove the flange lock nut (d) and flat washer (e) at the blade (a) and remove
the blade.
5. To replace the blade reverse the above process and tighten nut to 90-110 ft-lbs.
(a)
(b)
(c)
(c)
(b)
Figure 19
(a)
Figure 20
Figure 21
(c)
(b)
(d/e)
(a)
Figure 22