23
•
Reroute the new upper drive belt as shown in
Figure 18.
Lower Drive Belt
NOTE:
Proper removal of the lower drive belt requires
the removal of several tractor components. Read
through the following procedure prior to attempting it to
determine if you feel you could successfully complete it.
If you don’t, see an authorized MTD Service Dealer to
have the belt changed.
IMPORTANT:
Note the routing of the lower drive belt
around both the pulleys and the belt keepers BEFORE
performing the following steps.
•
Unthread the shift lever knob and unfasten the
plastic tray from the fender by removing the four
screws which secure it.
•
Locate the variable-speed pulley through the
battery tray opening. See Figure 18.
•
Remove the variable-speed pulley by loosening the
hex bolt that secures it to the transmission. Use a
second wrench to hold the hex nut on the bottom
side of the pulley.
•
Slide the belt off of the variable-speed pulley as you
lift the pulley up and out through the battery tray
opening.
•
Remove the rear idler pulley from the double- idler
bracket while unrouting the belt from around both
the idler pulleys. Refer to Figure 18.
•
Remove the hex bolt from the center of the engine
pulley (or electric PTO clutch, if so equipped) and
gently lower it off of the engine crankshaft. Be
careful not to lose any washers or which may be
found on top of the engine pulley.
IMPORTANT:
When remounting the engine pulley (or
electric PTO clutch, if so equipped), torque the center
hex bolt to between 38 foot-pounds and 50 foot-
pounds.
•
Remove the drive belt by feeding it from both ends
toward the front idler pulley on the double-idler
bracket and through the shifter tray hole in the front
of the fender.
•
Reassemble by following the above steps in
reverse order.
•
Reroute the new belt around the pulleys, belt
keepers and keeper pins EXACTLY as the old one
was routed. Refer to Figure 18.
The drive pedal is properly adjusted when the hole
found in the double-idler bracket has approximately
1-3/8" of travel with ten pounds of pressure applied to
the drive pedal. See Figure 20.
Adjust the drive pedal after replacing the drive belts on
your tractor, if necessary, as follows:
Figure 19
Figure 20
•
Locate the speed control assembly on the
underside of the steering support bracket. See
Figure 19.
•
Remove both hairpin clips from the pin which is
fastened to the speed control assembly (be careful
not to lose the small flat washers found on the pin).
See Figure 19.
•
Remove the drive pedal return spring.
•
Using two 9/16" wrenches, remove the pin from the
speed control assembly. See Figure 19.
•
Thread the idler adjustment rod inward or outward
to lengthen or shorten the travel of the double-idler
bracket until proper adjustment is achieved.
•
Reassemble by following the above steps in
reverse order.
Front of Tractor
NOTE:
View shown from above tractor.
Double-idler Bracket
Idler
Adjuster Rod
Hole
1-3/8
”
Speed Control
Assembly
Hairpin
Clips
Idler Adj. Rod
Pin
Drive Pedal
Return Spring
Place Wrenches Here
Neutral
Return
Bracket
Summary of Contents for 807
Page 27: ...27 NOTES ...
