Poulan Pro PRGT2046A, Owner'S Manual

Page: 22 / 52

22
TO ADJUST ATTACHMENT CLUTCH
(See Fig. 26)
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.
ROTOR
CLUTCH PLATE
.012"
NYLON
LOCKNUT (3)
SLOT (3)
BRAKE
PLATE
FIG. 26
SECONDARY
IDLER ARM
L.H.
MANDREL
MOWER BLADE
DRIVE BELT
CENTER
MANDREL
IDLER
PULLEY
R.H.
MANDREL
COVER
SPRING
SWAY-BAR
BRACKET SCREW
FIG. 25
SERVICE AND ADJUSTMENTS
• 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 ADJUST BRAKE (See Fig. 27)
Your tractor is equipped with an adjustable brake system
which is mounted on the left 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 1-3/4", loosen jam nut and turn
nut “A” until distance becomes 1-3/4". Retighten jam nut
against nut “A”.
1-3/4"
WITH PARKING BRAKE “ENGAGED”
NUT
“A”
JAM NUT
OPERATING
ARM
FIG. 27
• 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.
TO REPLACE MOTION DRIVE BELT
(See Fig. 28)
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. It is not necessary to remove mower.
BELT REMOVAL -
•
Engage parking brake (creates slack in belt).
• Remove mower drive belt from electric clutch pulley only
(See “TO REPLACE MOWER DRIVE BELT” in this
section of this manual).
• Roll motion drive belt off transaxle pulley.
• Roll belt off clutching idler pulleys, then off engine pulley
and front V-idler pulley.
• Pull belt out of all belt keepers.
BELT INSTALLATION -
•
Place V part of belt into grooves on engine pulley and
front V-idler, making sure to route belt inside of belt
keepers.
• Put belt coming from V-idler above midspan belt keeper,
then onto clutching idler pulleys as shown.
• Make sure V part of belt engages V-idler.
• Place belt around transaxle pulley, beginning at top.
V part of belt should engage transaxle pulley.
• Place long lower section of belt through loop in midspan
belt keeper.
• Check to be sure belt is on proper side of all belt keepers.
• Reinstall mower drive belt onto electric clutch pulley.
IMPORTANT: CHECK BRAKE ADJUSTMENT.