Cub Cadet I1042 - Manual (Page 25)

25 s
ectiOn
7 — s
ervice
Loop the belt and push out of the V- groove of the drive 3.
pulley on the right hand spindle assembly. Lift the belt
over the pulley and out from beneath the spindle cover.
See Fig. 7-3.
Loop the new PTO belt and slide between the top of the
4.
drive pulley and spindle cover. Maneuver the belt around
and into the V-groove of the drive pulley.
Route the back side of the belt around idler pulley and
5.
between the idler pulley and idler bracket. Re-tighten the
hex screw and flange lock nut if loosened earlier. Refer to
Fig. 7-3.
Route the belt around the fixed idler pulley as shown in Fig.
6.
7-3 and re-install the deck as described in “Re-installing the
Cutting Deck” later in this section.
Changing the Timing Belt
WARNING! Be sure to shut the engine off, remove
ignition key, disconnect the spark plug wire(s) to
prevent unintended starting before removing the
belt(s).
To replace the timing belt, proceed as follows:
Remove the deck from beneath the tractor (refer to Cutting 1.
Deck Removal).
Remove the PTO belt drive pulley of the right hand spindle
2.
assembly as described in “Changing the PTO Belt.”
Remove the hex screw, flat washer, lock washer, shoulder
3.
spacer, and flange lock nut that make up the idler bracket
backstop. NOTE: It may be necessary to clean the underside
of the mowing deck to access the hex screw. Refer to Fig.
7-4.
Applying force to either the timing belt idler pulley or the 4.
timing belt idler bracket, pivot and hold the idler bracket
against the spring tension just far enough to allow lifting
the timing belt off and above the idler pulley. Carefully
release the idler bracket. See Fig. 7-4.
Loop the timing belt and lift out of the timing pulley and 5.
over the right hand spindle assembly. Maneuver the belt
between the drive pulley on top of the spindle assembly
and the spindle cover to remove.
Repeat the above procedure to remove the belt from the
6.
left hand spindle assembly timing pulley. Refer to Fig. 7-4.
Loop the new timing belt and maneuver the belt between
7.
the drive pulley on top of the right hand spindle assembly
and the spindle cover. Lower the belt until loosely around
the right hand timing pulley. Refer to Fig. 7-4.
Note the arrows on the top of the timing pulley on the LH
8.
spindle and on the drive pulley of the RH spindle assembly.
These timing arrows MUST be positioned 90° from each
other as shown in Fig. 7-5.
Rotate the RH spindle assembly to position the drive pulley 9.
timing arrow as shown in Fig. 7-5. Then with-out moving
the RH drive pulley, pull the timing belt tight against the RH
timing pulley, above the timing belt idler pulley, and over
to the LH timing pulley.
Turn the LH timing pulley so that its timing arrow is 90°
10.
from the RH spindle assembly timing arrow. Refer to Fig.
7-5.
While making sure not to change the position of either
11.
pulley, loop the timing belt over the LH timing pulley.
After making sure the spring is hooked onto the idler
12.
bracket and screw, pivot the timing idler bracket/idler
pulley against the spring tension just far enough to allow
you to lower the backside of the timing belt onto the idler
pulley. See Fig. 7-5.
Re-check the timing arrows on the two pulleys. If they have
13.
moved from the 90º position when tensioning the timing
belt, pivot the idler pulley to relieve tension on the belt
and re-position the pulleys. The timing arrows MUST be
positioned 90° from each other as shown in Fig. 7-5.
Bracket
Backstop
Idler Bracket &
Idler Pulley
Spring & Screw
Figure 7-4
Timing Pulley
Timing Arrow
Drive Pulley
Timing Arrow
Figure 7-5