Textron 742105, Setup, Parts & Maintenance Manual

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20
JZT 1000
Series
BELT REPLACEMENT
GEARBBOX-SPINDLE BELT
1. Remove the cutterdeck timing belt as detailed in
the cutterdeck timing belt section.
2. Insert a 3/8” ratchet extension in the square hole
in the gearbox-spindle idler.
3. Use the ratchet handle R to rotate the idler
enough to secure it in place with a phillips
screwdriver through the hole in the idler arm and
desk top. Remove the idler from the idler arm.
Remove the gearbox mounting bolts and loosen
the front bolts. Remove the belt from the blade
spindle pulley and work it out from under the gear
box.
4. Install the new belt by doing steps 1 through 3 in
reverse order.
10. Check the belt after the first several hours of
operation for slack. If there is any slack, repeat
step 9.
NOTE: Timing belts use fiberglass or Aramid fiber
cords which have very little stretch. Once properly
tensioned, no further adjustment is usually
necessary. It is important that there be no slack in
the belt, because any slack can allow the belt to jump
teeth on the sprockets and get the blades out of time.
Since there is no stretch in the belt, it can easily be
over tightened. The spring allows the correct amount
of tension to be applied without danger of over
tension.