Service &Maintenance - Craftsman 247.770330 Operator's Manual

Before performing any type of maintenance/service, disengage all controls
and stop the engine. Wait until all moving parts have come to a complete
stop. Disconnect spark plug wire and ground it against the engine to
prevent unintended starting. Always wear safety glasses during operation
or while performing any adjustments or repairs.
Interval
Each Use and every 5 hours 1.
2.
3.
1st 5 hours 1.
Annually or 25 hours 1.
2.
3.
Annually or 50 hours 1.
Annually 1.
2.
Before Storage 1.
† Clean more often under dusty conditions or when airborne debris is present.
Always stop engine and disconnect spark plug wire before performing any
maintenance or adjustments. Always wear safety glasses during operation
or while performing any adjustments or repairs.
General Recommendations
• Always observe safety rules when performing any maintenance.
• The warranty on this yard vacuum does not cover items that have been
subjected to operator abuse or negligence. To receive full value from
warranty, operator must maintain the equipment as instructed here.
• Some adjustments will have to be made periodically to maintain your unit
properly.
• Periodically check all fasteners and make sure these are tight.
Engine Maintenance
Spark Plug
Clean spark plug and reset the electrode gap to 0.020" at least once a season;
replace annually.
1. Disconnect the cap from the spark plug, and remove any dirt from the spark
plug area.
2. Use the proper size spark plug wrench to remove the spark plug.
3. Check the gap with a wire gauge. See Figure 20. Spark plug gap should be
0.020 in (0.51 mm). If necessary, reset the gap.
SERVICE AND MAINTENANCE
MAINTENANCE SCHEDULE
WARNING
Item
Engine oil level
Loose or missing hardware
Unit and engine.
Engine oil
Air filter
Control linkages, pivots, & wheels
Underside of deck
Engine oil
Spark plug
Air Filter
Fuel system
WARNING
Follow the maintenance schedule given below. This chart describes service
guidelines only. Use the Service Log column to keep track of completed
maintenance tasks. To locate the nearest Sears Service Center or to schedule service,
call the following toll free number:1-888-331-4569.
Service
1. Check
2. Tighten or replace
3. Clean
1. Change
1. Clean
2. Lube with light oil
3. Clean
1. Change
1. Replace
2. Replace
1. Run engine until it stops from lack of fuel, or
add stabilizer to a full tank of fresh fuel prior
to storage.
Electrode
0.020 in. (.51mm)
4. Install and tighten the spark plug to the recommended torque (180 lb-in [20
Nm]).
5. Attach the spark plug cap to the spark plug.
15
Service Log
Figure 20