MTD 604H manual Changing Transmission Drive Belt, nimu

IMPORTANT: Each cutting blade edge has to be ground equally to maintain proper blade balance. A poorly balanced

blade will cause excessive vibration, may damage the tractor and/or result in personal injury.

Hex Flange Nut

Wood Block

	Blade separation
Worn blade edge
	Wind Wing
	5/	8"
		mi
			nimu
Sharpen edge evenly				m

Spindle Assembly

Figure 14

5.Test the blade by balancing it on a round shaft screwdriver. Grind metal from the heavy side until it balances evenly.

6.When replacing the blade, be sure to install the blade with the side of the blade marked ‘‘Bottom’’ (or with a part number stamped in it) facing the ground when the mower is in the operating position.

7.Use a torque wrench to tighten the blade spindle hex flange nut to between 70 and 90 foot-pounds.

8.Gently slide the cutting deck (from the right side) out from underneath the tractor.

Changing Transmission Drive Belt

NOTE: It is recommended that both drive belts be replaced at the same time.

1.Remove the cutting deck as instructed earlier in this section.

2.After disconnecting the battery cables, remove the battery and battery tray from beneath the seat.

Variable-Speed		Battery Tray			Shift Lever					Drive belt (Lower)
			Opening
	Pulley						Rear Idler Pulley			Drive belt (Upper)
						Belt Keeper
								Front Idler Pulley
				Idler Bracket
									Keeper Pins

to drive pedal

		Double-Idler Bracket	Engine Pulley
		Transmission Idler Pulley	Front of Tractor
Single-Speed	Transmission Pulley		NOTE: View shown from above tractor.
Transmission

Figure 15

20