EMAK PPX 271 Manuel D'utilisation Et D'entretien page 33

WARNING - A sharp chain produces well-
defined chips. When your chain starts to
produce sawdust, it is time to sharpen.
After every 3-4 times the cutters have been
sharpened you need to check the height of the
depth gauges and, if necessary, lower them using
the flat file and template supplied optional, then
round off the front corner.
WARNING - Proper adjustment of the
depth gauge is as important as proper
sharpening of the chain.
GUIDE BAR
The bar should be reversed every 8 working
hours to ensure uniform wear.
Keep the bar groove and lubrication hole clean
using the bar groove cleaner supplied optional.
Check the bar rails frequently for wear and, if
necessary, remove the burs and square-up the
rails using the flat file.
WARNING - Never mount a new chain on
a worn sprocket.
WARNING! – Always wear protective
gloves during maintenance operations. Do not
carry out maintenance with the engine hot.
AIR FILTER
Every 8-10 working hours, remove the cover
(A, Fig. 13), clean the filter (B).
Blow with compressed air, at a distance.
Replace if dirty or damaged. The engine runs
irregularly if the filter is clogged, with consequent
higher consumption and lower performance.
FUEL FILTER
Check fuel filter periodically. A dirty filter
can cause difficult starting and lower engine
performance. To clean filter proceed as follows:
remove it from fuel filling hole. Replace it (Fig. 12)
if too dirty.
ENGINE
Clean cylinder fins with a brush or compressed
air periodically. Dangerous overheating of engine
may occur due to impurities on the cylinder.
SPARK PLUG
Clean spark plug and check electrode distance
periodically (Fig. 14). Use Champion NGK CMR7A
or of other brand with the same thermal grade.
GEAR HOUSING
Every 30 working hours, remove screw (A, Fig.1)
on the gear housing and check the quantity of
grease. Do not use more than 10 grams. Use high
quality molybdenum bisulfide grease.
Never use fuel for cleaning operations.
TRASMISSION
Grease the joints of the rigid tube (E, Fig.2) every
30 working hours with molybdenum disulfide.
CARBURETOR
This engine is designed and manufactured
in order to comply with the applicable (EU)
2016/1628, (EU) 2017/654 and (EU) 2017/656
Regulations. The quarter round the hall range
admissible is determined by the manufacturer
and you can not modify it.
Idle screw T is adjusted in order to ensure a good
safety margin between idle running and clutch
engagement.
WARNING: With the engine idling
(2800÷3000 rpm), the chain should not rotate.
We recommend that you have your nearest
authorised dealer or service workshop carry
out any carburettor adjustments.
WARNING: Weather conditions and
altitude may affect carburation.
MUFFLER
WARNING! - This muffler is fitted with a
catalytic converter needed for the engine to be in
compliance with the emissions requirements.
Never modify or remove the catalytic converter:
failure to do so is a violation of law.
WARNING! - Mufflers fitted with catalytic
converters get very hot during use and remain
so for some time after stopping. This also
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