Changing Transmission Drive Belt - MTD 607 Operator's Manual

• If the cutting edge of the blade has already been
sharpened to within 5/8" of the wind wing radius, or if
any metal separation is present, replace the blades
with new ones. See Figure 14.
Each cutting blade edge has to be ground
IMPORTANT:
equally to maintain proper blade balance. A poorly
balanced blade will cause excessive vibration, may
damage the tractor and/or result in personal injury.
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.
When removing the battery, disconnect the NEGATIVE (Black) wire from its terminal first, followed by
IMPORTANT:
the POSITIVE (Red) wire. Re-install in reverse order.
Variable-Speed
Pulley
Single-Speed
Transmission
Battery Tray
Shift Lever
Opening
Belt Keeper
Idler Bracket
Double-Idler Bracket
Transmission Idler Pulley
Transmission Pulley
Figure 15
Hex Flange Nut
Spindle Assembly
Worn blade edge
Sharpen edge evenly
Rear Idler Pulley
Front Idler Pulley
Keeper Pins
to drive pedal
NOTE: View shown from above tractor.
22
Wood Block
Blade separation
Wind Wing
Figure 14
Drive belt (Lower)
Drive belt (Upper)
Engine Pulley
Front of Tractor