hecht 587 - Page 37

37 / 148
PL
SK
EN
CS
HU
FOAM ELEMENT FILTER PLEATED AIR FILTER
5.
Wash the cover and filter element (fig. 25C)
in warm soapy water, rinse, and allow to
dry thoroughly. Or clean in non-flammable
solvent and allow to dry. DO NOT USE
GASOLINE!
To loosen debris, gently tap the filter
(fig. 25E) on a hard surface. Never try to
brush the dirt off, brushing will force dirt
into the fibers. If the filter is excessively
dirty, replace with a new filter.
6. Dip the filter element in clean engine oil,
then squeeze out all excess oil. The engine
will smoke if too much oil is left in the foam.
If the machine is equipped with a foam
prefilter: Wash the pre-filter in warm soapy
water, rinse, and allow to dry thoroughly.
Or clean in non-flammable solvent and
allow to dry. Do not use gasoline! DO NOT
OIL THE PRE-FILTER.
7. Reassemble the air cleaner.
8.
Close the cover (fig. 25B) and secure it.
Note:I
Replace filter if frayed, torn, damaged or unable to be cleaned.
SPARK PLUG
For best results, replace the spark plug every 100 hours of use. Use only the recommended spark
plug which is the correct heat range for normal engine operating temperatures. To find actual
types of recommended spark plugs please contact an authorized service center.
CAUTION!A
If the engine has been running, the muffler and the spark plug will be very hot. Be
carefull not to touch this parts.
Note:I
Incorrect spark plugs can cause engine damage.
For good performance, the spark plug must be properly gapped and free of deposits.
1. Disconnect the cap (fig. 26A) from the spark plug and remove any dirt from the spark plug area.
2. Use the proper size spark plug wrench to remove the spark plug (fig. 27A).
3. Inspect the spark plug. Replace it if damaged, badly fouled, if the sealing washer is in poor
condition, or if the electrode is worn.
4. Measure the electrode gap (fig. 28A) with a suitable gauge (fig. 28B). The correct gap is listed in
the Specifications. If adjustment is needed, correct the gap by carefully bending the side electrode.
5. Install the spark plug carefully, by hand, to avoid cross-threading.
6. After the spark plug is seated, tighten with the proper size spark plug wrench to compress
the washer.
7. When installing a new spark plug, tighten by 1/2 turn after the spark plug seats to compress
the washer.
8. When reinstalling the original spark plug, tighten by 1/8 - 1/4 turn after the spark plug seats
to compress the washer.
9. Attach the spark plug cap to the spark plug.
Note:I A loose spark plug can become very hot and can damage the engine. Over tightening
the spark plug can damage the threads in the cylinder head.