McCulloch 433691 Operator'S Manual Download

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Fig. 12

Fig. 13

Disconnect spark plug wire before performing any maintenance (except car bu re tor adjustment) to

prevent accidental start ing of engine.
Prevent fires! Keep the engine free of grass, leaves, spilled oil, or fuel. Re move fuel from tank

before tipping unit for maintenance. Clean muffler area of all grass, dirt, and debris.
Do not touch hot muffler or cylinder fins as contact may cause burns.

ENGINE

LUBRICATION

Use only high quality detergent oil rated with API service

classification SG-SL. Select the oil’s SAE vis cos i ty grade

according to your expected temperature.

NOTE:

Although multi-viscosity oils (5W-30, 10W-30, etc.)

improve starting in cold weather, these multi viscosity oils

will result in increased oil consumption when used above

32°F (0°C). Check your engine oil level more frequently to

avoid possible engine damage from running low on oil.
Change the oil after every 50 hours of operation or at least

once a year if the tiller is not used for 50 hours in one year.
Check the crankcase oil level before starting the engine

and after each eight (8) hours of continuous use. Add SAE

30 motor oil or equivalent. Tighten oil filler plug securely

each time you check the oil level.

MAINTENANCE

TO CHANGE ENGINE OIL (See Fig. 13)

NOTE

: Before tipping tiller to drain oil, empty fuel tank by

running engine until fuel tank is empty.
1. Disconnect spark plug wire from spark plug and place

wire where it cannot come in contact with plug.

2. Remove engine oil cap; lay aside on a clean surface.

3. Tip tiller on its side as shown and drain oil into a suitable

container. Rock tiller back and forth to remove any oil

trapped inside of engine.

4. Wipe off any spilled oil from tiller or side of engine.
5. Slowly pour oil down the oil fill spout, stopping every

few ounces to check the oil level with the dipstick.

6. Stop adding oil when you reach the FULL mark on the

dipstick. Wait a minute to allow oil to settle.

7. Continue adding small amounts of oil, rechecking the

dipstick until oil level settles at FULL. DO NOT over-

fill, or engine will smoke heavily from the muffler on

startup.

8. Always be sure to retighten oil dipstick before starting

engine.

9. Re

con nect spark plug wire to spark plug.

SPARK PLUG WIRE

CONTAINER

Fig. 14

AIR FILTER

Your engine will not run properly and may be damaged

by using a dirty air filter. Clean the element after every 25

hours of operation or every season. Replace the air filter

every season. Service air cleaner more often under dusty

conditions.
TO CLEAN AIR FILTER ELEMENT
1. Remove

screw.

2. Re

move air cleaner carefully to pre vent dirt from en ter-

ing carburetor.

3.  Take air cleaner apart and clean air filter element.
4.  Wash filter element in liquid de ter gent and water.
5.  Wrap filter element in cloth and squeeze dry.
6.  Lightly coat filter element with clean engine oil. Squeeze

in towel to re move excess oil. Do not satu rate.

7. Reassemble parts and put back on carburetor.

BODY

CUP

ELEMENT

ASSEMBLE SO LIP

EXTENDS OVER

EDGE OF AIR

CLEANER BODY

LIP WILL FORM

PROTECTIVE SEAL

WHEN COVER IS