Section 7: Maintenance; General Recommendations; Cutting Blade - MTD YARD MACHINES 707 Owner's Manual

Tips for mulching:
• For effective mulching, do not cut wet grass
because it tends to stick to the underside of
the deck, preventing proper mulching of grass
clippings. New or thick grass may require a
narrower cut. The ground speed should be
adjusted to the condition of the lawn. If
mowing has been delayed and the grass has
been allowed to grow in excess of 4", mow
twice to reduce the grass height to 3-1/4"
maximum.

SECTION 7: MAINTENANCE

GENERAL RECOMMENDATIONS

1. Always observe safety rules when performing
any maintenance.
2. The warranty on this electric mower does not
cover items that have been subjected to
operator abuse or negligence. To receive full
value from the warranty , operator must
maintain the mower as instructed in this manual.
3. Some adjustments will need to be made
periodically to maintain your unit properly.
4. All adjustments in the Service & Adjustments
section of this manual should be checked at
least once each season.
WARNING:
disconnect the power source before
cleaning, lubricating or performing any
repairs or maintenance on lawn mower.

CUTTING BLADE

WARNING:
wearing heavy gloves and/or wrapping
cutting edges with newspapers or other
materials when performing any blade
maintenance. Be certain to disconnect
the power supply.
Removing Blade
1. Stop the motor and disconnect the power
supply to the mower. Turn mower on its side.
2. Use a block of wood between blade and mower
deck to prevent blade from turning when bolt is
removed.
Always stop motor and
Always protect hands by
WARNING
object, stop the motor. Disconnect the
power source, thoroughly inspect the
mower for any damage, and repair the
damage before restarting . Extensive
vibration of the mower during operation
is an indication of damage. The unit
should be promptly inspected and
repaired.
Fan
Blade Adapter
Blade
Flat Washer
Hex Bolt
3. Using a 3/8" box or open-end wrench, remove
center bolt and bell washer which hold the fan,
blade and adapter to the motor shaft. See
Figure 10.
4. Remove the fan, blade and adapter from the
shaft.
5. Remove the two small bolts, flat washers and
nuts which hold the blade to the adapter. See
Figure 10. Remove fan from blade adapter.
Replacing Blade
1. Put blade adapter on motor shaft.
2. Fit blade in adapter making sure that the trailing
edge of the blade is up towards the engine, and
the side of the blade marked "Bottom" (or with
part number) faces the ground when the mower
is in the operating position.
3. Before reassembling the blade and the blade
adapter to the unit, lubricate the motor shaft and
the inner surface of the blade adapter with light
oil (or engine oil). Lubricating the bolt holes,
bolts and inner surface of the nuts is also
recommended.
11
:
:
If you strike a foreign
Flat Washer
Hex Bolt
Bell Washer
Hex Bolt
Figure 10