24
between the ruler and guide bar the guide bar 'rail'
is normal. If there is no gap (ruler flush against the
side of the guide bar) the guide bar 'rail' is
worn and needs to be replaced with a new one of
the same type. (See Fig. 18c)
6). Turn the guide bar 180° to allow even wear,
thereby extending the life span of the guide bar
(B7).
7). Check the saw chain for possible wear and
damages. Replace it with a new one if required.
Experienced user can sharpen a dull saw chain (see
section “Saw chain sharpening” below).
8). Refit the saw chain (B6) and the guide bar (B7)
as described under “Assembly”.
AIR FILTER
1. Inspect the air filter regularly. Clean it at least
every 25 hours or replace with a new one if
necessary.
2. Open the air filter case. Tap the filter on a stable
surface to remove dust. Use high pressure air (max.
3 bar) to remove stubborn dust. (See Fig. 20)
3. Apply a small amount of air filter oil on the filter
to increase the filter performance. Wring out
surplus oil and put the filter into the case.
4. Close the air filter case.
FUEL TANK
1. Empty the fuel tank when storing the product
over 30 days to prevent the fuel from deteriorating.
2. Unscrew and remove the fuel tank cap (A6) and
use a proper fuel pump to empty the fuel
into a suitable container.
FUEL FILTER
The fuel tank of this product is fitted with a filter
located at the free end of the fuel pipe. Ask an
authorised service centre or similar qualified
person to check and where necessary replace it
at regular intervals.
SPARK PLUG
NOTE!
This engine uses a L8RTC spark plug with
0.6-0.7mm electrode gaps. Use a suitable
replacement and replace once a year.
1. Inspect the spark plug at least every 25 hours or
prior to long-term storage over 30 days if
the use has not been this high. Clean or replace
with a new spark plug if necessary.
2. Unplug the spark plug connector (A2). Loosen
the spark plug with the spark plug wrench (C4)
anticlockwise and carefully remove it. (See Fig.
21a)
4. Check the spark plug for damage and wear. The
colour of the electrode should be lightbrown
coloured.
5. Remove debris from the electrode with a soft
wired brush; avoid heavy cleaning of the electrode.
6. Dry the spark plug with a soft cloth if it is wet
from fuel.
7. Check the spark plug gap; it should be 0.6 - 0.7
mm. (See Fig. 21b)
8. Replace with a new spark plug if either the
electrode or the insulation is damaged
9. When replacing the spark plug, first screw it in
hand tight and then lightly tighten it with the
spark plug wrench.
WARNING!
Do not over-tighten the spark
plug to avoid any damage!
BEVEL GEAR
The bevel gear is filled with grease. Ask an
authorised service centre or similar qualified
person to check the quantity regularly and fill up
using proper grease if necessary.
CARBURETTOR
The carburettor is pre-set by the manufacturer.
Should it be necessary to make any changes
please contact an authorised service centre or a
similarly qualified person. Do not attempt to
make any adjustments by yourself.
G
B
Содержание SPS-750
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