Maintenance And Repair Instructions; Line Replacement; Maintenance Schedule - Craftsman Weedwacker 316.79197 Operator's Manual

LINE REPLACEMENT

for Hassle-Free™ Plus Cutting
Head
Always use Craftsman Hassle-
Free™ XTRA QUIET Spiral Line.
Choose the line size best suited for
the job at hand. Red colored line is
designed for cutting grass and
small weeds. Black colored line is
designed for cutting larger weeds
and light brush.
NOTE: Before inserting new line
into the holes in the cutting
head, identify the proper
holes. Follow directions as
shown on the glide plate.
Do Not attempt to remove
the cutting head from the
unit when replacing line.
NOTE: Do not mix lines. Use 2
black or 2 red only.
1. Remove the old line and line
glide plate from the cutting
head.
2. Clean entire surface of cutting
head.
3. Reinstall line glide plate (Fig. 11).
The glide plate is a keyed item
and will only fit one way. If it does
not go into the cutting head smoothly, DO NOT force it. Rotate the
glide plate until it slides into the cutting head easily.
NOTE: The glide plate must be installed in the cutting head before
inserting new line.
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.
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 qualified service dealer.
FREQUENCY
Before starting engine
Every 10 hours
1st change at 10 hours
At 25 hours/every 25 hours
Every 50 hours
10 hours on new engine
Every 25 hours
Every 25 hours

MAINTENANCE AND REPAIR INSTRUCTIONS

Trimming
Line
Insertion
Holes
Positioning
Tunnel
Glide Plate
Fig. 11
Fig. 12
• MAINTENANCE SCHEDULE •
MAINTENANCE REQUIRED
Fill fuel tank with fresh fuel
Check oil
Clean and re-oil air filter
Change oil
Change oil
Clean spark arrestor
Check rocker arm to valve clearance and adjust
Check rocker arm to valve clearance and adjust
Check spark plug condition and gap
4. Insert both ends of your line
through the insertion holes in
the side of the cutting head (Fig.
11).
5. Push and/or pull the line so that
the line is snug against the hub
and is fully extended through the
positioning tunnels (Fig. 12).
6. Correctly installed line will be
the same length on both sides
(Fig. 13).
NOTE: Make sure that when
installing new line, that the
line is as close to even as
possible. Any variation in
lengths may cause the unit
to vibrate excessively. If this
happens, stop the unit and
make sure the line is even.
7. Repeat steps 4 thru 6 to install
the second trimmer line.
8. Correctly installed, the four
lines will all be the same
length (Fig. 14).
Some line breakage will occur from:
• Entanglement with foreign matter
• Normal line fatigue
• Attempting to cut thick, stalky
weeds
• Forcing the line into objects
such as walls or fence posts
NOTE: Maintenance, replacement, or repair of the emission control
devices and system may be performed by a Sears or other
qualified 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 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.
9
Fig. 13
Fig. 14
SEE
p. 6
p. 10
p. 11
p. 10
p. 10
p. 13
p. 12
p. 12
p. 13