Stihl MS 310 Product Instruction Manual - Page 28

Tensioning the Saw Chain

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English / USA Tensioning the Saw Chain 6 9 77 8 10 1 001BA109 KN 133BA024 KN 001BA108 KN : Disengage the chain brake: Pull hand guard (6) toward front handle. Wear work gloves to protect your hands from the sharp cutters. : Fit the chain - start at the bar nose. 143BA003 KN : Fit the guide bar over the studs (7) - cutting edges on top of bar must point to right - and engage the peg of the tensioner slide in locating hole (8) - place the chain over sprocket (9) at the same time. : Now turn tensioning screw (10) clockwise until there is very little chain sag on the underside of the bar - and the drive link tangs are located in the bar groove. : Refit the sprocket cover - and screw on the nuts only fingertight. : Go to "Tensioning the Saw Chain". Retensioning during cutting work: : Shut off the engine first - and then loosen the nuts. : Hold the bar nose up and use screwdriver to turn tensioning screw (1) clockwise until chain fits snugly against the underside of the bar. : While still holding the bar nose up, tighten down the nuts firmly. : Go to chapter "Checking Chain Tension". A new chain has to be retensioned more often than one that has been in use for some time. : Check chain tension frequently - see chapter "Operating Instructions". MS 290, MS 310, MS 390 27

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27
MS 290, MS 310, MS 390
English / USA
:
Disengage the chain brake: Pull
hand guard
(6)
toward front handle.
Wear work gloves to protect your
hands from the sharp cutters.
:
Fit the chain – start at the bar nose.
:
Fit the guide bar over the studs
(7)
–
cutting edges on top of bar must
point to right – and engage the
peg of the tensioner slide in locating
hole
(8)
– place the chain over
sprocket
(9)
at the same time.
:
Now turn tensioning screw
(10)
clockwise until there is very little
chain sag on the underside of the
bar – and the drive link tangs are
located in the bar groove.
:
Refit the sprocket cover –
and screw on the nuts only finger-
tight.
:
Go to “Tensioning the Saw Chain”.
Retensioning during cutting work:
:
Shut off the engine first –
and then loosen the nuts.
:
Hold the bar nose up and use
screwdriver to turn tensioning screw
(1)
clockwise until chain fits snugly
against the underside of the bar.
:
While still holding the bar nose up,
tighten down the nuts
firmly
.
:
Go to chapter “Checking Chain
Tension”.
A new chain has to be retensioned more
often than one that has been in use for
some time.
:
Check chain tension frequently –
see chapter "Operating
Instructions".
001BA108 KN
6
143BA003 KN
9
7
7
8
10
001BA109 KN
Tensioning the Saw Chain
1
133BA024 KN