MTD Automatic Lawn Tractor 607 - Manual (Page 19)

19
Figure 15
CHANGING THE TRANSMISSION DRIVE BELT(S)
All belts on your tractor are subject to wear and should be replaced if any signs of cracking, shredding or
rotting are present.
IMPORTANT: The V-belts found on your tractor 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 drive belt(s) on your tractor, proceed as follows:
NOTE: It’s recommended that both drive belts be replaced at the same time.
• Remove the cutting deck as instructed earlier in this section.
• After disconnecting the battery cables, remove the battery and battery tray from beneath the seat.
IMPORTANT: When removing the battery, disconnect the NEGATIVE (Black) wire from it’s terminal first,
followed by the POSITIVE (Red) wire. Re-install in reverse order.
Upper Drive Belt
• Locate the transmission idler pulley on the upper drive belt by looking through the battery tray opening.
See Figure 16.
• Grasp the bracket and pivot the transmission idler pulley toward the rear of the tractor to release
tension on the upper drive belt.
• Remove the belt from around the transmission idler pulley.
• Remove the upper drive belt from around the transmission pulley and the variable-speed pulley.
NOTE: Slowly rotate the pulley counterclockwise to roll the belt off of it.
• Remove the upper drive belt by pulling it up through the battery tray opening.
• Reroute the new upper drive belt as shown in Figure 16.
42-Inch Deck 46-Inch Deck
PTO (Top) Belt 754-0485 754-0486
Deck (Bottom) Belt N/A 754-0349
Engine Pulley
PTO Engagement Plate
Left Hand
Double Pulley
Right Hand Pulley
Center Pulley
Deck Idler Pulley
Deck belt (Bottom)
PTO belt (Top)
NOTE: Left hand belt cover not shown for clarity. 46-inch deck shown.
Self-Tapping Screws
(mounted on tractor)
(beneath belt guard)
PTO Idler Pulleys
Belt Guard
(mounted on tractor)
Deck Stop
(mounted on tractor)