Service And Maintenance; Engine Maintenance - Craftsman 247.77012 Operator's Manual

6.5 horse power yard vacuum

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Table Of Contents

Table of Contents

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Warning

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

Checking the Spark Plug

Clean spark plug and reset the electrode gap to 0.020" at least once a

season; replace every 100 hours of operation.

•

Clean area around the spark plug base. Do not sandblast spark

plug. Spark plug should be cleaned by scraping or wire brushing

and washing with a commercial solvent.

•

Remove and inspect the spark plug. Check gap to make sure it is

set at .020". See Figure 14.

•

Replace the spark plug if electrodes are pitted, burned, or the

porcelain is cracked.

Servicing the air Cleaner

CaUTiOn

Do not use pressurized air or solvents to clean the air cleaner

cartridge.

The air cleaner prevents damaging dirt, dust, etc., from entering the

carburetor and being forced into the engine and is important to engine

life and performance. The air cleaner consists of a pleated filter. Never

run the engine without an air cleaner completely assembled.

Clean or replace the air cleaner every 25 hours of operation.

Loosen screw and tilt plastic housing cover on side of engine

down. See Figure 15.

Remove air filter from plastic housing cover and replace with

clean or new filter.

Insert cover's tabs into slots in bottom of base.

Tilt cover up into place and tighten screw.

NOTE: If the filter is torn or damaged in any way, replace it.