Craftsman 316.79191 - Manual (Page 10)

10
MAINTENANCE AND REPAIR INSTRUCTIONS
CLEANING THE RAPID REWIND™ HEAD
NOTE: Also perform these steps when replacing inner reel with a
new prewound reel.
Cleaning the Rapid Rewind™ may be necessary if:
• A jammed or excessive line must be removed
• The Rapid Rewind™ becomes difficult to wind or does not operate
correctly when bumping the head on the ground.
1. Hold the outer spool, and unscrew the bump knob
counterclockwise (Fig. 18).
2. Pull out the bump knob, spring and foam seal (Fig. 19).
Fig. 18
Fig. 19
Bump Knob
Foam Seal
Spring
Inner Reel
3. Pull the inner reel with existing line from the outer spool.
4. If rewinding with new line, remove any existing line from the inner reel
before cleaning. Remove any debris or grass from the knob, spring, inner
reel and foam seal. Wash the inner reel with warm soapy water (Fig. 20).
5. Clean the shaft and the inner surface of the outer spool. To clean
the shaft underneath the plunger, press down on the plunger (Fig.
21). Remove any dirt or debris from the shaft.
NOTE: The inner reel must be totally dry before reinstalling it into the
outer spool. Do not lubricate the inner reel or outer spool assembly.
6. Place the cleaned and empty or new prewound inner reel into the
outer spool.
7. Place the bump knob, spring and foam seal onto the inner reel (Fig. 19).
8. Press the bump knob down and tighten clockwise.
9. Install new line in the empty inner reel as described in Line Installation
for the Rapid Rewind™.
Fig. 21
Plunger
Shaft
Fig. 20
Inner Reel
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 you are unsure about these procedures take your
unit to a Sears or other authorized service dealer.
NOTE: Maintenance, replacement, or repair of the emission
control devices and system may be performed by a Sears
or other authorized service dealer.
In order to assure peak performance of your engine, inspection of the
engine exhaust port may be necessary after 50 hours of operation. If you
FREQUENCY MAINTENANCE REQUIRED SEE
Before starting engine
Fill fuel tank with fresh fuel
Check oil Page 6
Page 11
Every 10 hours Clean and re-oil air filter Page 11
First change at 10 hours
At 25 hours/every 25 hours
Every 50 hours Change oil
Change oil
Clean spark arrestor Page 11
Page 11
Page 13
10 hours on new engine
Every 25 hours
Every 25 hours
As necessary Check rocker arm to valve clearance and adjust
Check rocker arm to valve clearance and adjust
Check spark plug condition and gap
Clean the Rapid Rewind™ Head Page 12
Page 12
Page 13
Page 10
WARNING: To prevent serious injury, never perform
maintenance or repairs with unit running. Always service
and repair a cool unit. Disconnect the spark plug wire to
ensure that the unit cannot start.
notice lost RPM, poor performance or general lack of acceleration, this
service may be required. If you feel your engine is in need of this inspection,
refer service to a Sears or other qualified service dealer for repair. DO NOT
attempt to perform this process yourself as engine damage may result from
contaminants involved in the cleaning process for the port.
• MAINTENANCE SCHEDULE •