Homelite F-2020 Manual De Utilización página 18

F 2020 _17 lgs 24/11/03
GB
F D E
MAINTENANCE
4. Thread the strings into the eyelets (30) in the string
head. Carefully push the spool into the string head
(gently pull the strings to the outside if necessary).
When the spool is positioned in the string head,
grasp the strings and pull sharply to release them from
the slots in the spool.
5. Push down and turn the spool anticlockwise until it no
longer turns. Hold the spool down and rotate clockwise
a small amount. Release the spool. The spool should
be locked down in the string head. If not, hold down
and rotate until locked.
6. Make sure the string head and the spool retainer are
installed on the shaft by turning the retainer anti-
clockwise to tighten.
7. Pull the strings again to rotate the spool into cutting
position. Push the spool retainer down while pulling on
string(s) to manually advance the string and to check
for proper assembly of the string head.
STRING REPLACEMENT (Fig. 12, 13, 14 & 15)
1. Stop the engine and disconnect the sparking plug wire.
Hold the string head and unscrew the spool retainer.
Turn clockwise.
2. Remove the spool from the string head.
NOTE: Keep the spring attached to the spool. Remove
any old string remaining on the spool.
3. Cut two pieces of string, each being approximately
2.7 m (9 ft) long.
4. Insert the first string (34) into the anchor hole (33) in the
upper part of the spool. Wind the first string round the
upper part of the spool anticlockwise, as shown by the
arrows on the spool. Place string in the slot (35) on upper
spool flange, leaving about 152 mm (6 in) extended
beyond the slot. Do not overfill. After winding the string,
there should be at least 6 mm (1/4 in) between the
wound string and the outside edge of the spool.
5. Repeat above step with second string (36), using the
bottom part of spool. Do not overfill.
6. Replace the spool and the spool retainer. Refer to
"Spool Replacement" earlier in this manual.
CLEANING THE EXHAUST PORT AND MUFFLER
Depending on the type of fuel used, the type and amount
of oil used, and/or your operating conditions, the exhaust
port and muffler may become blocked with carbon
deposits. If you notice a power loss with your petrol-
powered tool, a qualified service technician will need to
remove these deposits to restore performance.
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SPARK ARRESTOR
The spark arrester must be cleaned or replaced every
25 hours or yearly to ensure proper performance of your
product. Spark arresters may be in different locations
depending on the model purchased. Please contact your
nearest service dealer for the location of the spark
arrester for your model.
Cleaning Instructions:
REPLACING AND CLEANING AIR FILTER
(Fig. 16 & 17)
For proper performance and long life, keep air filter clean.
1. Remove the air filter cover (40) by pushing down on
2. Remove the filter (39), clean it in warm soapy water.
3. Reinstall the filter.
4. Replace the air filter cover by inserting the tabs on the
FUEL CAP
The fuel cap contains a non-serviceable filter and a
check valve. A clogged fuel filter will cause poor engine
performance. If performance improves when the fuel cap
is loosened, the check valve may be faulty or the filter
clogged. Replace fuel cap if required.
SPARKING PLUG
This engine uses a Champion RCJ-6Y with 0.63 mm
(0.025 in.) electrode gap. Use an exact replacement and
replace annually.
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Remove the spark arrester from the muffler.
If your spark arrester is made of fibreglass, discard
and replace.
If your spark arrester is made of metal, follow these
cleaning instructions:
1. Spray the spark arrester with a quality carbon cleaner.
2. Gently clean using a wire brush.
3. Install the new or cleaned spark arrester and
reassemble completely before use.
the latch (37) with your thumb while gently pulling on
the cover.
Rinse and let dry completely. For best performance,
replace annually.
bottom of the cover into the slots on the air filter base;
push the cover up until it latches securely in place.
WARNING
A leaking fuel cap is a fire hazard and must be
replaced immediately.
RUS RO PL