Efco GSH 51 Manuel D'utilisation Et D'entretien page 17

OIL PUMP (automatic/adjustable) - Flow
adjustment is pre-set by the manufacturer. Oil
flow can be adjusted by the operator according
to specific requirements by means of the special
adjusting screw (Fig. 32). Oil flow occurs only
when the chain is moving.
WARNING - Never use scavenge oil.
STARTING UNIT - Use a brush or compressed
air to keep the cooling louvers of the starter
assembly free and clean.
ENGINE - Clean the c ylinder fins with
compressed air or a brush periodically.
Dangerous overheating of engine may occur
due to impurities on the cylinder.
SPARK PLUG - Clean the spark plug and check
the electrode gap periodically (Fig. 29).
Use TORCH L8RTF or of other brand with the
same thermal grade.
CHAIN BRAKE - If the chain brake does not work
properly, remove the chain cover and the clean
brake components. Replace the chain brake band
if worn or deformed.
GUIDE BAR - Turn the guide bar and check that
the lubrication holes are free from impurities.
Never use fuel for cleaning operations.
CARBURETOR
Before adjusting the carburetor, clean the starter
cover, the air filter (Fig. 27) and warm up the
engine.
The carburetor (Fig.30) is adjusted in the factory
by means of screw L (open about 1 turn +1/2)
and screw H (open about 1 turn +1/2).
Idle screw T is adjusted in order to ensure a good
safety margin between idle running and clutch
engagement.
Screw L must be adjusted so that the engine
promptly responds to sharp accelerations and
gives good idle operation.
Screw H must be adjusted so that the engine
gives maximum power during the cutting phase.
WARNING - Weather conditions and
altitude may affect carburation. Do not
allow anyone to stay close to the chainsaw
while working or while adjusting the
carburetor.
EXTRA MAINTANANCE ADVISABLE
It is advisable to inspect the machine by a
specialized technician at an authorized service
network at the end of season, if used intensively,
and every two years if with normal use.
WARNING! – Any maintenance operations
not specifically dealt with in this manual
must be carried out by an authorized service
center. To ensure that your chainsaw continues
to function correctly, use only ORIGINAL
REPLACEMENT PARTS.
Any unauthorized changes and/or
use of non-original replacement parts
may result in serious injury or death to the
operator or third parties.
TRANSPORTION
Carry the chainsaw with the engine stopped,
guide bar to the rear and chain cover on (Fig. 31).
WARNING - When transpor ting the
machine on a vehicle, ensure that it is
firmly and securely fastened using straps or
belts. The machine must be transported in the
horizontal position, also ensuring compliance
with applicable transport regulations for such
machines.
GB
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NL
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CZ
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UK
PL
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