How to Replace the Deck Belt on Your Troy-Bilt Mustang 42” XP Zero Turn Riding Mower
A worn or damaged belt can prevent your unit from operating properly. If you find that you’re having trouble operating your unit as intended, inspect the deck/belts for any excessive damage or wear that may be obstructing the efficient operation of your mower.
Before servicing any power equipment, follow the safety instructions laid out in your owner’s manual. Make sure the equipment is completely stopped, cooled down, and that no parts are moving before attempting to service your equipment.
- Step 1: Remove the deck.
- Step 2: Take the belt covers off by removing the hex washer screws that are securing them in place.
- Step 3: Take a picture of the configuration/routing of the deck and belt to use for future reference before removing any components.
- Step 4: Remove the hex screws and flange lock nuts that are securing the two idler pulleys to the deck and idler arm.
- Step 5: Remove the two idler pulleys.
- Step 6: Keep any hardware that you remove off to the side.
- Step 7: Take the belt off of the spindle pulleys.
- Step 8: Reference the picture you took earlier whenever necessary. Install the new belt around the spindle pulleys.
- Step 9: Reinstall the belt covers.
- Step 10: Put the belt around the idler pulleys that you removed, ensuring that the “V” side is on the inside.
- Step 11: Install and tighten all previously removed hardware to secure the assembly.
- Step 12: Route the belt using the picture you took as a reference.
- Step 13: Install the deck
For information about safety, warranty, and your specific model, read and be familiar with your owner’s manual.
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