Troy-Bilt 13AL78BT066 Manual Del Operador página 20

Changing the Deck Belt
WARNING
Be sure to shut the engine OFF, remove the key, disconnect
the spark plug wire(s) and ground against the engine to
prevent unintended starting before removing the belt
WARNING
All belts on your lawn rider are subject to wear and should
be replaced if any signs of wear are present.
IMPORTANT: The V-belt found on your rider 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 deck belt on your rider,
proceed as follows:
1. Remove the deck. Refer to Cutting Deck
Removal on page 18.
2. Remove the belt covers by removing the
hex washer screws that fasten them to the
deck. See Figure 4-18.
Hex Washer
Screws
Spindle Pulley
Belt Guard
Deck Idler
Pulley
Figure 4-18
Notes
20 S 4 — P
ection roduct
3. It may also be necessary to loosen the hex
nut on the left idler pulley to get the belt off
the pulley and around the belt guard.
4. Carefully remove the deck belt from around
the two spindle pulleys and the two deck
idler pulleys. See Figure 4-18.
5. To place the new belt, begin by routing the
belt around the two outer spindle pulleys as
shown in Figure 4-18.
6. Route the belt around the two deck idler
pulleys as shown in Figure 4-18.
7. Retighten the left idler pulley hex nut
loosened in step 3.
8. Remount the belt covers removed in Step 2.
9. Re-install the deck, making sure the belt
remains routed around the pulleys as
instructed. See Figure 4-18.
10. Pull the right side of the belt, and place the
narrow V side of the belt into the PTO pulley.
11. While holding the belt and pulley together,
rotate the pulley to the left. Continue
holding and rotating the pulley and belt
until the belt is fully rolled into the PTO
pulley.
Changing the Transmission Drive Belt
NOTE: Several components must be removed and
Belt Cover
special tools (i.e. air/impact wrench) are needed
in order to change the rider's drive belt. See an
authorized Service Dealer to have your drive belt
replaced.
c
are
Troubleshooting
Excessive Vibration
1. Cutting blade loose.
• Tighten cutting blade and deck
spindle.
2. Cutting blade damaged, unbalanced or bent.
• Replace the cutting blade.
Uneven Cut
1. Deck not properly leveled.
• Perform side-to-side deck
adjustment.
2. Cutting blade dull or damaged.
• Sharpen or replace cutting blade.
3. Uneven tire pressure.
• Check and correct tire pressure in all
four tires.