MTD 604 Changing the Deck Belts, Decks w/ Electric PTO, Inch decks w/ manual PTO

CHANGING THE DECK 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 deck belt(s) on your tractor, proceed as follows:

NOTE: Removing the deck from the tractor as instructed earlier in this section will ease the following steps.

Decks w/ Electric PTO

•Lower the deck by moving the lift lever into the bottom notch on the right fender.

•Remove the belt guards by removing the self-tapping screws that fasten them to the deck surface.

•Grasp the PTO idler pulley bracket and pivot it toward the discharge chute to relieve tension on the belt.

•Remove the PTO belt from the electric PTO clutch and from around the PTO idler pulley.

•Grasp the deck idler pulley and pivot it toward the left side of the deck to relieve tension on the deck belt. Remove the belt from around all three spindle pulleys and the deck idler pulley.

•Route the new belts as shown in Figure 15. OEM belt part numbers are listed in the table on the following page.

NOTE: 42-inch decks engaged with an electric PTO do NOT have a bottom belt or a center pulley. Disregard these items in Figure 15 when routing a replacement PTO belt on tractor’s so equipped.

•Remount the belt guards removed earlier.

Electric PTO Clutch

Deck Idler Pulley

PTO Idler Pulley		Deck belt (Bottom)
(mounted on tractor)		PTO belt (Top)
		Right Hand
		Double Pulley
	(beneath belt guard)

Left Hand

Double Pulley

Center Pulley

Self-Tapping Screws

NOTE: Left hand belt cover not shown for clarity. 46-inch deck shown.

Figure 15

42-inch decks w/ manual PTO

•Lower the deck by moving the lift lever into the bottom notch on the right fender.

•Remove the belt guards by removing the self-tapping screws that fasten them to the deck surface.

•Move the PTO lever into the disengaged (OFF) position to relieve tension on the belt.

•Remove the PTO belt from around the bottom portion of the engine pulley and from around the two idler pulleys found on the PTO engagement plate. See Figure 16.

•Route the new belt as shown in Figure 16, around the deck pulleys, idler pulleys and engine pulley. OEM belt part numbers are listed in the table on the following page

•Remount the belt guards removed earlier..

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