Maintenance Schedule; Replacing The Blade - Craftsman Speed start 316.715860 Operator's Manual

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.
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the frequency
stated in the table. These procedures should also be a part of any
seasonal tune-up.
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.
NOTE: Maintenance, replacement, or repair of the emission control
devices and system may be performed by a Sears or other qualified
service dealer. Call 1-800-4-MY-HOME for more information.
NOTE: Please read the California/EPA statement that came with the
unit for a complete listing of terms and coverage for the
emissions control devices, such as the spark arrestor, muffler,
carburetor, etc.
FREQUENCY MAINTENANCE REQUIRED
Every 10 hours Clean and re-oil the air filter. Refer to
Maintaining the Air Filter.
Every 25 hours Check the spark plug condition and gap. Refer
to Maintaining the Spark Plug.
REPLACING THE BLADE
WARNING:
To avoid serious personal injury, always i
wear gloves when handling the blade.
!
WARNING:
Do not sharpen the blade. Sharpening the [
blade can cause the blade tip to break off while in use.
I
This can result in severe personal injury.
Removing the Blade
1. Align the shaft bushing hole with the locking rod slot (Fig. 13).
Insert the locking rod into the locking rod slot and shaft bushing
hole (Fig. 13).
2. Hold the locking rod firmly against the shaft housing (Fig. 14).
3. While holding the locking rod in place, loosen the nut by turning it
clockwise with a 5/8 inch closed-end or socket wrench (Fig. 14).
4. Remove the locking rod (Fig. 15).
5. Remove the nut, blade retainer and blade (Fig. 15).
Shaft Bushing Hole
Locking Rod Slot
Output Shaft
Locking Rod
Fig. 13
Locking Rod
ft_us,n _'_
g /_
Fig. 14
Nut
Clockwise
Blade Retainer
Nut
Blade
Output Shaft
Bushing
Locking Rod
Fig. 15
13