21
IMPORTANT:
The V-belts found on your tractor are
specially designed to engage and disengage safely. A
substitute (non-OEM) V-belt can be dangerous by not
disengaging completely. For a proper working machine,
use factory approved belts.
To change or replace the drive belt on your tractor,
proceed as follows:
NOTE: It is recommended that both drive belts be
replaced at the same time.
•
Remove the cutting deck as instructed earlier.
•
After disconnecting the battery cables, remove the
battery and battery tray from beneath the seat.
IMPORTANT:
When removing the battery, disconnect
the negative (black) wire from its terminal first, followed
by the positive (red) wire. Re-install in reverse order.
NOTE: Proper removal of the drive belt requires the
removal of several tractor components. Read through
the following procedure prior to attempting it to
determine if you could successfully complete it.
Otherwise see an authorized service dealer.
IMPORTANT:
Note the routing of the lower drive belt
around all the pulleys and the belt keepers (if present)
before performing the following steps.
•
Locate the fixed V-idler pulley found on the left
underside of the frame. See Figure 15.
•
Grasp the belt on both sides of the pulley and
gently move it toward the left frame rail allowing it to
unseat itself from the fixed v-idler. See Figure 15.
•
Pivot the double-idler bracket forward slightly
before removing the idler extension spring from the
stud and the double-idler bracket itself. Do not
discard the spring.
•
Roll the drive belt out from around both the V-idler
pulley and the flat idler pulley found on the double-
idler bracket.
•
Remove the hex bolt from the center of the engine
pulley and gently lower it off the engine crankshaft.
IMPORTANT:
Be careful not to lose any washers or
spacers which may be on top of the electric PTO clutch
or the engine pulley, as the case may be.
•
Lower the engine pulley far enough to be able to
remove the upper drive belt from around it
.
IMPORTANT:
When remounting the engine pulley,
torque the center hex bolt to between 38 foot-pounds
and 50 foot-pounds.
•
Remove the drive belt by feeding it from front to
rear, toward the hydrostatic transmission. See
Figure 15.
•
Continue removing the drive belt by gently lifting it
off the transmission pulley and over the cooling fan.
IMPORTANT:
The fins on the cooling fan are only slightly
flexible. Be careful not to damage the fan when
removing the belt from around the transmission pulley.
•
Reroute the new belt around the pulleys and belt
keepers, if present, exactly as the old one was
routed. Refer to Figure 15.
Figure 15
Fixed V-idler Pulley
Transmission Pulley
Engine Pulley
Hydrostatic
Double-Idler Bracket
V-idler Pulley
NOTE:
View shown from above tractor.
Idler Extension Spring
Drive Belt
Left Frame Rail
Flat idler Pulley
(Beneath Cooling Fan)
Transmission
TRACTOR
FRONT OF