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MS 251, MS 251 C
English
27
Disengage the chain brake.
N
Pull the hand guard towards the
front handle until there is an audible
click – the chain brake is
disengaged.
Fitting the chain
WARNING
Wear work gloves to protect your hands
from the sharp cutters.
N
Fit the chain – start at the bar nose.
N
Fit the guide bar over the studs (1) –
the cutting edges on the top of the
bar must point to the right.
N
Engage the peg of the tensioner
slide in the locating hole (2) –- place
the chain over the sprocket (3) at
the same time.
N
Turn the tensioning screw (4)
clockwise until there is very little
chain sag on the underside of the
bar – and the drive link tangs are
engaged in the bar groove.
N
Refit the sprocket cover and screw
on the nut only fingertight.
N
Go to chapter on "Tensioning the
Saw Chain"
Removing the chain sprocket cover
N
Swing grip (1) into position (until it
engages)
N
Turn the wing nut (2) to the left until
it hangs loosely in the chain
sprocket cover (3)
N
Remove chain sprocket cover (3)
Mounting the tensioning gear
N
Remove and reverse tensioning
gear (1)
001BA186 KN
143BA003 KN
3
1
1
2 4
001BA187 KN
Mounting the Bar and Chain
(quick chain tensioner)
1
2
3
2310BA013 KN
1
2310BA014 KN
Summary of Contents for MS 251
Page 2: ...Instruction Manual 1 61 Manual de instrucciones 62 127 ...
Page 130: ...MS 251 MS 251 C español EE UU 128 ...
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