Poulan Pro 178493, Руководство пользователя

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22
SERVICE AND ADJUSTMENTS
TO ADJUST ATTACHMENT CLUTCH
(See Fig. 25)
The electric clutch should provide years of service. The
clutch has a built-in brake that stops the pulley within 5
seconds. Eventually, the internal brake will wear which may
cause the mower blades to not engage, or, to not stop as
required. Adjustments should be made by your nearest
authorized service center/department.
•
Make sure attachment clutch and ignition switches are
in “OFF” position.
• Adjust the three nylon locknuts until space between
clutch plate and rotor measures .012" at all three slot
locations cut in side of brake plate.
NOTE: After installing a new electric clutch, run tractor at full
throttle and engage and disengage electric clutch 10 cycles
to wear in clutch plate.
NYLON LOCKNUT (3)
BRAKE PLATE
SLOT (3)
ROTOR
CLUTCH PLATE
.012"
FIG. 25
TO ADJUST BRAKE (See Fig. 26)
Your tractor is equipped with an adjustable brake system
which is mounted on the side of the transaxle.
If tractor requires more than six (6) feet stopping distance at
high speed in highest gear on a level dry concrete or paved
surface, then brake must be adjusted.
•
Depress clutch/brake pedal and engage parking brake.
• Measure distance between brake operating arm and nut
“A” on brake rod.
• If distance is other than 1-1/2", loosen jam nut and turn
nut “A” until distance becomes 1-1/2". Retighten jam nut
against nut “A”.
• Road test tractor for proper stopping distance as stated
above. Readjust if necessary. If stopping distance is
still greater than six (6) feet in highest gear, further
maintenance is necessary. Contact your nearest au-
thorized service center/department.
WITH PARKING BRAKE “ENGAGED”
1-1/2"
NUT
“A”
JAM NUT
OPERATING
ARM
FIG. 26
FIG. 24
• Check secondary idler arm and idler to see that they
rotate freely.
• Be sure spring is hooked in secondary idler arm and
sway-bar bracket.
• Install new belt in lower groove of L.H. mandrel pulley,
idler pulley, and center mandrel pulley as shown.
• Roll belt over R.H. mandrel pulley. Make sure belt is in
all grooves properly.
• Reconnect spring to bolt in mower housing and reinstall
R.H. mandrel cover.
• Reinstall mower to tractor (See “INSTALL MOWER AND
DRIVE BELT” in the Assembly section of this manual).
• Reassemble mower drive belt (See “TO REPLACE
MOWER DRIVE BELT” in this section of this manual).
TO REPLACE MOTION DRIVE BELT
(See Fig. 27)
Park the tractor on level surface. Engage parking brake. For
ease of service there is a belt installation guide decal on
bottom of left footrest.
•
Remove mower (See “TO REMOVE MOWER” in this
section of this manual.)
BELT REMOVAL -
•
Engage parking brake (creates slack in belt).
• Remove belt from clutching and fan idler pulleys.
• Loosen belt keeper above transaxle pulley.
• Remove belt from transaxle pulley.
• Remove belt from engine pulley and front V-idler pulley.
• Pull belt out of all belt keepers and remove from tractor.
BELT INSTALLATION -
•
Place V part of belt into grooves on engine pulley and
front V-idler, making sure to route belt inside of all belt
keepers.
• Route belt on right side, coming from V-idler, towards
back of tractor, above midspan belt keeper and to top of
transaxle pulley.
MOWER
BLADE
DRIVE BELT
R.H.
MANDREL
COVER
CENTER
MANDREL
SCREW
L.H. MANDREL
SWAY BAR
BRACKET
SPRING
SECONDARY
IDLER ARM
IDLER
PULLEY