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SERVICE AND MAINTENANCE
Check Engine Oil
Stop engine and wait several minutes before checking oil level. 1.
With engine on level ground, the oil must be to FULL mark on
dipstick.
Remove oil fill dipstick and wipe clean with cloth. 2.
Replace and tighten dipstick. Remove and check oil level. Level 3.
should be at FULL mark.
If needed, add oil slowly - recheck. Do not overfill.4.
Wipe dipstick clean, replace and tighten. Remove and check oil 5.
level. Oil level should be at FULL line on dipstick.
Change Engine Oil
Only use high quality detergent oil rated with API service •
classification SF, SG, or SH. Select the oil’s SAE viscosity grade
according to the expected operating temperature. Refer to opera-
tion section for viscosity chart.
Change engine oil after the first five to eight hours of operation, •
and every fifty hours or every season thereafter. Change oil every
twenty five hours when operating engine under heavy load or in
high temperatures.
To Drain Oil
Drain the fuel from the tank by running the engine until the fuel 1.
tank is empty.
Disconnect spark plug wire and keep it away from spark plug.2.
With engine OFF but still warm remove oil fill dipstick.3.
Tip unit on its side (spark plug side up) to drain through the oil fill 4.
tube into appropriate receptacle.
When engine is drained of all oil, place engine level. Refill with 5.
approximately 18 oz. of fresh oil. Fill to FULL line on dipstick. Do
not overfill. Refer to Gas And Oil Fill-Up in OPERATION section.
Replace oil fill dipstick and tighten.6.
Replace spark plug wire before starting.7.
Service Muffler
Inspect muffler periodically, and replace if necessary. Replace-•
ment parts for the muffler must be the same and installed in the
same position as the original parts, otherwise fire can occur.
Clean Engine
Daily or before every use, clean grass, chaff or accumulated •
debris from engine. Keep linkage, spring, and controls clean.
Keep area around and behind muffler free of any combustible
debris.
Keeping engine clean allows air movement around engine.•
Engine parts should be kept clean to reduce the risk of over-•
heating and ignition of accumulated debris. This is especially
important if cutting tall grass.
Carburetor Adjustment
The carburetor on this engine is not adjustable.
Engine Speed
LUBRICATION
Wheels• - Place a few drops of SAE 30 oil on each shoulder screw
once a season.
Nozzle height adjustment levers• - Lubricate nozzle height
adjustment levers with light oil.
Locking Rod• - Lubricate the lock rod and compression springs
which attach to the mounting bracket.
Nozzle/Hose Vac Lever• : Lubricate the nozzle/hose vac lever on
top of the nozzle once a season with light oil.
CLEAN EQUIPMENT
Clean the Yard Vacuum thoroughly after each use.•
Wash bag periodically with water. Allow to dry thoroughly in •
shade.
If the flail screen becomes clogged, remove and clean as •
instructed below.
NOTE: Cleaning with a forceful spray of water is not recommended as
it could contaminate the fuel system.
CAUTION
Do not overfil. Overfilling with oil may cause the engine to not start,
or hard starting. If over the FULL mark on the dipstick, drain oil to
reduce oil level to FULL mark on dipstick.
CAUTION
Used oil is a hazardous waste product. Dispose of used oil properly.
Do not discard with household waste. Check with your local authori-
ties or Sears Service Center for safe disposal/recycling facilities.
WARNING
Temperature of muffler and nearby areas may exceed 150˚ F (65˚C).
Avoid these areas.
CAUTION
Do not use water to clean engine parts. Water could contaminate fuel
system. Use a brush or dry cloth.
WARNING
Do not attempt to alter the engine speed by tampering with the
engine’s governor linkage. Doing so could result in serious personal
injury and damage to the engine. The engine RPM has been set at
the factory.