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DAlLY CHECK-UP AND
MAINTENANCE
cover
Fig.
27
0 6
m m
-
0 7
m m
(0024'
-
0 0 2 8 " )
I
Fig.
29
,
I
Sponge element
-
FIY
28
I
x
I
Fig. 30
1 .
Before operation, pay particular attention to the tightness of the nylon cutting head. Re-tighten the , ~ y I c : ~
cutting head
if
necessary (every
8 h o u r s
or daily).
2.
Check for clogged cooling air passage and cylinder fins. Clean them
if
necessary (every
8
hours or
da!ly)
3.
Clean the air cleaner every
8
hours or daily. using the following procedure:
i).
Remove the air cleaner cover. Clean the sponge element and remove any excessive
dust
or
dirt
adhering to the cleaner (Fig. 27 and
2 8 ) . A
clogged air cleaner may make it difficult or impossible to
start
t h e
engine or
to
increase the engine rotational speed
ii).
Re-install the sponge element around the ribs
of
the air cleaner case.
4.
Check the spark plug every 8 hours or daily.
The gap between the two electrodes
of
the spark plug should be 0.6
to
0.7
m m
(0.024"
to
0.028").
If t h e
gap is too wide or too narrow, adjust it.
If the spark
plug
is
clogged with carbon
or
fouled, clean it thoroughly or replace
it
(Fig. 29).
5.
Apply grease (SHELL ALVANIA No.
3
or
equivalent) to the gear case through the grease hole every
30
hours (Fig. 30).
6. Clean the muffler exhaust port every 50 hours or monthly.
7. Check
the
fuel
filter.
If
clogged,
replace
it with a new
one
every
50
hours or
monthly.
8 .
Replace the fuel lines every
200
hours or yearly.
9 Overhaul the engine eyery.200 hours or yearly
10
Replace the packing andgaskets
with
new ones every time the engine is reassembled
-
13
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