SHARPENING THE BLADE
See Figure 17
For best mowing performance, the mower blade must
be kept sharp. A dull blade does not cut grass evenly
and overloads the motor. Under normal circumstances,
sharpening the blade twice during the mowing season
is usually sufficient. However, if your lawn has sandy
soil, more frequent sharpening's may be required.
•
Following the instructions in the
Replacing the
Cutting Blade
section, remove the mower blade.
DO NOT attempt to sharpen the blade while it is
attached to the mower.
•
Using a fine tooth file or stone, sharpen cutting
edges on both ends of the blade, removing equal
amounts of material from both ends.
BALANCING THE BLADE
See Figure 18
When sharpening, care should be taken to keep the
blade balanced. An unbalanced blade will cause
excessive vibration when the mower is running. This
vibration will eventually cause damage to the mower,
especially the motor.
To check blade balance:
•
Clamp a screwdriver horizontally in a vise as
shown.
NOTE:
If a vise is not available, a straight nail can also
be used.
•
Place the center hole of blade on the screwdriver
(or nail) shank.
WARNING:
When removing, inspect the blade carefully. If blade is bent
or damaged, replace immediately with a new blade. Failure
to replace a bent or damaged blade could cause an accident
resulting in possible serious injury.
BATTERY MAINTENANCE
It is recommended to charge the mower every 3
months for optimum performance when not in use. If
the battery has been in storage for a long time without
recharging, it will be in a low charge state.
MAINTENANCE
•
If blade is balanced, it will remain in a horizontal
position. If either end of the blade drops downward,
sharpen the heavy side until the blade is balanced.
REPLACING WHEELS
See Figure 19
To Replace a wheel:
•
Stop the motor and remove the switch key.
Remove battery from the battery compartment.
•
Turn the mower on its side.
•
Using a flat blade screwdriver, pry off the hubcap
(1).
•
Remove the self
-
locking nut (2) from the wheel axle
(3), then remove the wheel (4).
•
Replace with new wheel and install new
self
-
locking nut (2) securely.
•
Replace hubcap (1).
Fig. 17
Fig. 18
Fig. 19
1
2
3
4
17
Model 60040S