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5. To remove each blade, place a short piece of 2 x 4 wood between the end of the
blade and an appropriate structural part of the underside of the deck to prevent
rotation.
6. Loosen the blade bolt counterclockwise and remove the blade for sharpening or
replacement.
7. When reinstalling a blade, the wood block must be placed on the opposite side to
prevent rotation for tightening. Tighten so that blade is firmly held in place. (75-80
ft/lbs) Additional tightening may occur while mowing. This is due to blade rotation.
8. Always install the spindle guard between the bolt head and the bottom of the blade.
This serves as a support washer as well as reducing the potential for bearing
damage from wrapping string or wire.
Deck Belt Re place ment:
(HM600 Se rial# AA1001-1357) (HM720 Se rial# AA1001-1188) (HP720 Se rial# AA1001-1066)
If the deck belt is excessively worn or cracked, install a new belt.
This is done most easily with the deck removed from the tractor.
1. Remove the rear lid of the deck.
This is done by raising the lid and sliding it to the right to release hinge pin on the left side.
2. Remove cotter pin from cross-over support in the center of the hitch.
3. Release the belt tension by loosening the idler adjustment rod. (Refer to illustration
below.)
MAINTENANCE
D-2
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