17
SERVICE AND MAINTENANCE
Maintenance
GENERAL RECOMMENDATIONS
• Always observe safety rules when performing any
maintenance.
• The warranty on this lawn mower does not cover items that
have been subjected to operator abuse or negligence. To
receive full value from warranty, operator must maintain the
lawn mower as instructed here.
• All adjustments should be checked at least once each season.
• Periodically check all fasteners and make sure these are tight.
WARNING
Always stop the motor and remove the push start safety
key before cleaning, lubricating or performing any
repairs or maintenance on the mower. Always remove the
battery to prevent accidental starting. Always allow the
machine to cool before maintaining the mower. Before
maintaining the battery charger, always unplug it from
the power outlet.
DECK CARE
WARNING
To prevent serious injury, do not use water to clean the
mower, battery or battery charger. Do not use strong
detergents. Household cleaners that contain aromatic
oils such as pine and lemon, and solvents such as
kerosene, can damage plastic.
The underside of mower deck should be cleaned after each use
as grass clippings, leaves, dirt and other debris will accumulate.
This accumulation of grass clippings, etc., is undesirable as it will
promote rust and corrosion.
1. Remove any buildup of grass and leaves on or around the
motor (do not use water). Wipe the mower clean with a dry
cloth.
2. If debris is allowed to build up on the underside of the
machine, tilt the mower forward or on its side and clean with
a suitable tool.
IMPORTANT:
Do not use a pressure washer or garden hose
to clean your mower. These may cause damage to electric
components or the electric motor. The use of water will result in
shortened life and reduce serviceability.
BLADE CARE
WARNING
When removing the cutting blade for sharpening or
replacement, protect your hands with a pair of heavy
gloves or use a heavy rag to hold the blade. Be certain to
remove the battery(ies).
Periodically inspect the blade adapter for cracks, especially if you
strike a foreign object. Replace when necessary. Follow the steps
below for blade service.
1. Stop the motor and remove the push start safety key.
2. With the battery(ies) removed, turn the mower on its side.
3. Remove bolt (a) and blade bell support (b) which hold the
blade and the blade adapter to the motor shaft (Figure 16).
Blade
c
d
a
b
Figure 16
4. Remove blade (c) and adapter (d) from the shaft. (Figure 16).
5. Remove blade from the adapter for testing balance. Balance
the blade on a round shaft screwdriver to check. Remove
metal from the heavy side until it balances evenly. When
sharpening the blade, follow the original angle of grind.
Grind each cutting edge equally to keep the blade balanced.
WARNING
An unbalanced blade will cause excessive vibration when
rotating at high speeds. It may cause damage to mower
or may break causing personal injury.
6. Lubricate the motor shaft and the inner surface of the blade
adapter with light oil. Slide the blade adapter (d) onto the
motor shaft. Place the blade on the adapter such that the side
of the blade marked “Bottom” (or with part number) faces
the ground when the mower is in the operating position.
Make sure that the blade is aligned and seated on the blade
adapter flanges. See Figure 16 inset.
7. Place blade bell support (b) on the blade (c). Align notches on
the blade bell support with small holes in blade.
8. Replace hex bolt (a) and tighten hex bolt to torque: 450 in-lb
(min.), 600 in lb (max.).
To ensure safe operation of your mower, periodically check the
blade bolt for proper torque.
Battery Disposal
For information regarding battery
disposal and the RBRC® (Rechargeable
Battery Recycling Corporation) Seal,
refer to Disposing of Damaged or Worn-
Out Batteries on page 7.