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Craftsman 138.37097 Operator's Manual page 12

Electric lawn mower
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I_kWARNING!
When servicing, use only identical
replacement
parts. Use of any other parts may create
a hazard or cause product damage.
_k
WARNING!
Always wear safety goggles or
safety glasses
with side shields
during
power tool
operation
or when blowing dust. If operation
is dusty,
also wear a dust mask.
GENERAL
MAINTENANCE
Avoid using
solvents
when
cleaning
plastic
parts.
Most p(astics are susceptible
to damage
from various
types of commercial
solvents
and may be damaged
by their use. Use clean cloths to remove dirt, dust, oil
grease, etc.
_IWARNING!
Do not at any time let brake fluids,
gasoline,
petroleumbased
products,
penetrating
oi(s,
etc., come in contact
with plastic parts.
Chemica(s
can damage,
weaken,
or destroy
plastic which may
resu(t in serious persona( injury.
Periodically
check
al( nuts
and bolts
for proper
tightness to ensure safe operation of the mower.
Remove
any
buildup
of grass
and leaves
on or
around the motor cover. Wipe the mower clean with a
dry cloth occasiona(ly.
Do not use water.
LUBRICATION
AI( of the bearings in this product are lubricated with a
sufficient
amount of high grade lubricant for the life of
the unit under normal operating conditions.
Therefore,
no further bearing lubrication
is required.
At the beginning and end of each mowing season:
• Lubricate
the springs
on the rear discharge
door
with light oil.
• Lubricate
the height adjustment
lever and related
hardware with light oil.
• Remove the wheels and lubricate the surface of the
axle bolt and the inner surface of the wheel with light
oil.
• Remove
the blade and blade hub assembly
and
lubricate
the motor shaft with light oil or engine oil.
See Replacing
the Cutting
Blade for instructions
on
removing
the blade.
_IWARNING!
Always protect hands by wearing
heavy gloves and/or wrapping the cutting edges of the
blade with rags and other material
when performing
blade
maintenance.
Failure
to heed this warning
could result in serious personal injury.
_kWARNING!
Before
performing
any
maintenance,
make sure
the mower
is unplugged
from the power supply. Failure to heed this warning
could result in serious personal injury.
REPLACING
THE CUTTING
BLADE
See Figures 15 - 16.
NOTE: Only use identical replacement
blades.
• Stop the motor and disconnect
the power supply.
Allow the blade to come to a complete stop.
• Turn the mower on its side.
• Wedge
a block of wood
between
the blade
and
mower deck to prevent the blade from turning.
• Loosen the Made nut using a 15 mm wrench or
socket (net provided).
• Remove the blade nut, spacer, blade insulator, and
blade.
Make
certain
the
fan
assembly
is pushed
completely
against the motor shaft.
• Place the new blade
on the shaft against
the fan
assembly.
Make sure it is installed
with the curved
ends pointing
up toward
the mower
deck and not
down toward the ground.
• Replace the blade insulator and spacer, then thread
the blade nut on the shaft and finger tighten.
NOTE:
Make
certain
all parts are replaced
in the
exact order in which they were removed.
• Torque the blade nut down using a torque wrench
(not provided) to ensure the bolt is properly tightened.
The recommended
torque for the blade
nut is 220-
310 in. Ibs.
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
sharpenings
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.
_IiWARNING!
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.
12 -- English

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