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Craftsman 316.792440 Operator's Manual page 10

Universal brushcutter attachment
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WARNING:
To prevent serious injury, never perform
maintenance or repairs while the unit is running. Always
allow the unit to cool before servicing or repairing the unit.
Disconnect the spark plug wire to prevent the unit from
starting accidentally.
NOTE: Some maintenance procedures may require special tools or
skills. If unsure about these procedures, take the unit to a Sears
or other qualified service dealer. Call 1-800-4-MY-HOME
for
more information.
Shaft Bushing
Hole
Locking Rod Slot
Output Shaft
Shaft Bushing
REPLACING THE CUTTING BLADE
Replace the cutting blade when it becomes dull. Never sharpen a
dull blade. Follow the instructions
in this section to successfully
replace the blade.
I _1_
I WARNING:
To avoid serious personal injury, alway s
wear gloves while handling or installing the blade.
Remove the Cutting
Blade
_
ARNING:
The gear housing gets hot with use. It can
result in injury to the operator. The housing remains hot for
a short time even after the unit is turned off. Do not touch
the gear housing until it has cooled.
I
NOTE:
To make cutting blade removal and installation easier,
place the unit on the ground or on a work bench.
1. Align the shaft bushing hole with the locking rod slot and insert
the locking rod into the bushing hole (Fig. 13).
2. Hold the locking rod in place by grasping it next to the boom of
the unit (Fig. 14).
3. While holding the locking rod, loosen the nut on the blade by
turning it clockwise
with a 13 mm closed-end or socket wrench
(Fig. 14).
Remove the nut, blade retainer, and blade.
4,
Install the New Cutting
Blade
_
ARNING:
To avoid serious personal injury, always
wear gloves while handling or installing the blade.
J
1. Place the cutting blade on the output shaft bushing (Fig. 15).
2. Make sure that the cutting blade is centered on the pilot step
and sitting flat against the output shaft bushing (Fig. 16).
I _
I WARNING:
If the cutting blade is off-center, the unit will I
vibrate and the blade may fly off, causing possible serious
personal injury.
Locking Rod
Fig. 13
Fig. 14
Nut
Blade Retainer
Fig. 15
Square Bolt
Fig. 16
10

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