Stihl HS 56 C-E Instruction Manual - Page 20

Checking the Spark Plug - pris

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000BA045 KN English Checking the Spark Plug N If the engine is down on power, difficult to start or runs poorly at idle speed, first check the spark plug. N Fit a new spark plug after about 100 operating hours - or sooner if the electrodes are badly eroded. Install only suppressed spark plugs of the type approved by STIHL - see "Specifications". Removing the Spark Plug N Stopping the Engine 2 N Remove the spark plug boot (2) using a suitable tool (e.g. combination wrench). N Unscrew the spark plug. Checking the spark plug 0008BA017 KN A N Carefully pry open the flap (1) with a suitable tool (e.g. combination wrench). N Clean dirty spark plug. N Check electrode gap (A) and readjust if necessary - see "Specifications". N Rectify the problems which have caused fouling of the spark plug. Possible causes are: - Too much oil in fuel mix. - Dirty air filter. - Unfavorable running conditions. 000BA039 KN 0008BA018 KN 1 If the spark plug comes with a detachable adapter nut (1), screw the adapter onto the thread and tighten it down firmly to reduce the risk of arcing and fire. Installing the Spark Plug N Insert and screw home the spark plug by hand. N Tighten down the spark plug. N Press the spark plug boot firmly onto the spark plug. N Close the flap (1), top first, then the bottom, tabs (arrows) must snap into position. 0008BA019 KN 18 HS 46, HS 46 C, HS 56 C

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HS 46, HS 46 C, HS 56 C
English
18
N
If the engine is down on power,
difficult to start or runs poorly at idle
speed, first check the spark plug.
N
Fit a new spark plug after about 100
operating hours – or sooner if the
electrodes are badly eroded. Install
only suppressed spark plugs of the
type approved by STIHL – see
"Specifications".
Removing the Spark Plug
N
Stopping the Engine
N
Carefully pry open the flap
(1) with a
suitable tool (e.g. combination
wrench).
N
Remove the spark plug boot (2)
using a suitable tool (e.g.
combination wrench).
N
Unscrew the spark plug.
Checking the spark plug
N
Clean dirty spark plug.
N
Check electrode gap (A) and
readjust if necessary – see
"Specifications".
N
Rectify the problems which have
caused fouling of the spark plug.
Possible causes are:
–
Too much oil in fuel mix.
–
Dirty air filter.
–
Unfavorable running conditions.
If the spark plug comes with a
detachable adapter nut (1), screw the
adapter onto the thread and tighten it
down
firmly
to reduce the
risk of arcing
and fire
.
Installing the Spark Plug
N
Insert and screw home the spark
plug by hand.
N
Tighten down the spark plug.
N
Press the spark plug boot
firmly
onto the spark plug.
N
Close the flap (1), top first, then the
bottom, tabs (arrows) must snap
into position.
Checking the Spark Plug
0008BA017 KN
0008BA018 KN
2
000BA039 KN
A
1
000BA045 KN
0008BA019 KN