MTD 31A-2M1A731 Návod k obsluze stáhnout pdf (Strana 15)

Remove the oil filler cap/dipstick. If the level is low, slowly 15.



Fig. 3-2 and 3-3 in the Set-Up section.

Repeat Steps 14 & 15 to be sure that the correct oil level has 16.

been achieved.

Once the proper oil level has been confirmed, install the Oil 17.

Fill Cap/Dipstick. Tighten securely

Carefully disconnect spark plug wire from grounding post, 18.

if present.

Carefully reconnect the spark plug wire to the spark plug. 

NOTE: It is advisable to recheck the oil level after you have

operated the engine for a short while, and the normal engine

operating temperature has been achieved.

If the engine has been running, the

muffler, engine head and spark plug will be very hot.



until they have cooled.

Air Filter (If so equipped)

NOTE: Not all engines have air filters, such as engines used for

snow throwers. Service the air filter if one is present.

Paper filters cannot be cleaned and must be replaced once a



Never use gasoline or low flash point

solvents for cleaning the air cleaner element. A fire

or explosion could result.

NOTE: Never run the engine without the air cleaner. Rapid

engine wear will result.

Press the tab on the air filter cover and lift the cover. See 1.

Fig. 6-4.

Replace paper element when dirty or damaged. Clean 2.

foam element or replace when damaged.

To clean foam element, separate it from the paper element 3.

and wash in liquid detergent and water. Allow to dry

thoroughly before using. Do not oil the foam element.

Spark Plug Service

DO NOT check for spark with spark

plug removed. DO NOT crank engine with spark

plug removed.

Check the spark plug yearly or every 100 operating hours. To

ensure proper engine operation, the spark plug must be properly

gapped and free of deposits.

Remove the spark plug boot.1.

Clean the area around the spark plug.2.

Use a spark plug wrench to remove the plug. 3.

If the engine has been running, the



muffler.

2. Visually inspect the spark plug. Discard the spark plug

if there is apparent wear, or if the insulator is cracked or

chipped. Replace the plug if the electrodes are pitted,

burned or fouled with deposits.

Clean the spark plug with a wire brush if it is to be reused.4.

Measure the plug gap with a feeler gauge. Correct as 5.

necessary by bending side electrode. See Fig. 6-5. The gap

should be set to 0.030 in. (0.76mm).

Check that the spark plug washer is in good condition6.

Thread the spark plug in by hand to prevent cross-7.

threading.

After the spark plug is seated, tighten with a spark plug 8.

wrench to compress the washer.

NOTE: When installing a new spark plug, tighten ⁄ turn

after the spark plug seats to compress the washer. When

reinstalling a used spark plug, tighten ⁄-⁄ turn after the

spark plug seats to compress the washer.

NOTE: The spark plug must be securely tightened. An

improperly tightened spark plug can become very hot and

may damage the engine.

0.02-0.03 in.





Air

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

Cover







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se c t i O n 6 — Ma i n t e n a n c e

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