z_
_WARNING: Avoid touching muf- fler unless engine and muffler are cold. A hot muffler can cause serious burns.
_WARNING: | Stop engine and be |
sure the impeller blades have stopped turning before opening the vacuum in-
let door or attempting to insert or re- move the vacuum or blower tubes.
The rotating blades can cause serious injury. Always disconnect the spark plug before performing maintenance or accessing movable parts.
GENERAL RECOMMEN DATIONS
The warranty on this unit does not cov- er items that have been subjected to operator abuse or negligence. To re- ceive full value from the warranty, the operator must maintain unit as instruct- ed in this manual. Various adjustments will need to be made periodically to properly maintain your unit.
CHECK FOR LOOSE FASTENERS AND PARTS
•Muffler
•Spark Plug Boot
•Air Filter
•Housing Screws
CHECK FOR DAMAGED OR WORN PARTS
Contact Sears Service Center for re- placement of damaged or worn parts.
•Throttle Lever - Ensure throttle lever functions properly by moving the throttle lever to the STOP position. Make sure engine stops; then restart engine and continue.
•Fuel Tank - Do not use unit if fuel tank shows signs of damage or leaks.
•Vacuum Bag - Do not use vacuum bag if it is torn or damaged.
INSPECT AND CLEAN UNIT
AND LABELS
•After each use, inspect complete unit for loose or damaged parts. Clean the unit using a damp cloth with a mild detergent.
•Wipe off unit with a clean dry cloth.
CLEAN AIR FILTER
A dirty air filter decreases engine per- formance and increases fuel consump- tion and harmful emissions. Always clean after every 5 hours of operation.
Bu_on
Air Filter
Cover
Air Filter
Cleaning the air filter:
1.Clean the cover and the area
around it to keep debris from falling into the carburetor chamber when the cover is removed.
NOTE: Move choke lever to RUN posi- tion before opening air filter cover.
2.Open air filter cover by pushing button (see illustration). Remove air filter.
NOTE: Do not clean filter in gasoline or other flammable solvent. Doing so can create a fire hazard or produce harmful evaporative emissions.
3.Wash the filter in soap and water.
4.Allow filter to dry.
5.Apply a few drops of oil to the filter; squeeze filter to distribute oil.
6.Replace parts.
REPLACE SPARK PLUG
Replace spark plug each year to ensure the engine starts easier and runs better. Set spark plug gap at 0.025 inch. Igni- tion timing is fixed, nonadjustable.
1.Twist, then pull off spark plug boot.
2.Remove spark plug from cylinder and discard.
3.Replace with Champion
4.Reinstall the spark plug boot.
REPLACE FUEL FILTER
To replace fuel filter, drain unit by run- ning it dry of fuel, then remove fuel
cap/retainer assembly from tank. Pull filter from tank and remove it from the
fuel line. Install new fuel filter on fuel
line; reinstall parts.