MAINTENANCE AND REPAIR INSTRUCTIONS
LINE REPLACEMENT
for
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.
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
Fig. 13
Fig. 14
• MAINTENANCE SCHEDULE •
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
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.
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.
FREQUENCY | MAINTENANCE REQUIRED | SEE | |||
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Before starting engine | Fill fuel tank with fresh fuel | p. 6 | |||
Check oil | p. 10 | ||||
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Every 10 hours | Clean and | p. 11 | |||
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1st change at 10 hours | Change oil | p. 10 | |||
At 25 hours/every 25 hours | Change oil | p. 10 | |||
Every 50 hours | Clean spark arrestor | p. 13 | |||
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10 hours on new engine | Check rocker arm to valve clearance and adjust | p. 12 | |||
Every 25 hours | Check rocker arm to valve clearance and adjust | p. 12 | |||
Every 25 hours | Check spark plug condition and gap | p. 13 | |||
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