Stihl MS 311 User Manual - Page 51

Check operation, of switch shaft, Powerful, spark?, Engine, runs?

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2 3 Check operation of switch shaft: - Short circuit wire chafed? - Function between contact spring and switch shaft contact: - Position "F" = no connection - Position "0" = connection - Install new short circuit wire if necessary, b 7.7.2 Powerful yes spark? no Install new ignition b 7.3 yes Engine runs? Machine runs trouble-free, no further action necessary 50 no - Look for fault in fuel system or carburetor - Check engine for leaks - Check position of flywheel on crankshaft, b 7.6, b 6.5 MS 311, MS 391

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50
MS 311, MS 391
Machine runs trouble-free,
no further action necessary
no
Install new ignition
b
7.3
yes
no
– Look for fault in fuel system or
carburetor
– Check engine for leaks
– Check position of flywheel on
crankshaft,
b
7.6,
b
6.5
yes
Check operation
of switch shaft:
– Short circuit wire chafed?
– Function between contact spring and switch
shaft contact:
– Position "
F
" = no connection
– Position "
0
" = connection
– Install new short circuit wire if necessary,
b
7.7.2
2
3
Powerful
spark?
Engine
runs?