Online version - not for reprint
31MS 270, MS 280
Installing
– Before installation, coat the
knurled area of the new pin with
Loctite 243 – see 14.
– Position the new pin in the bore
so that the knurling on the pin
meshes with the existing knurling
in the bore. Turn pin back and
forth as necessary.
Carefully tap home the pin
squarely to obtain dimension "a"
(about 4 mm).
– Coat all sliding and bearing
points with STIHL multipurpose
grease – see 14.
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a
– Fit the fan cover – see 8.2.
– Fit the shroud – see 6.4.
– Remove the inner side plate
– see 5.4.2.
Rotate the spur gear clockwise
until tensioner slide (1) butts
against the thrust pad (2).
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2
1
Pull out the retainer (1).
Take out the screw (2).
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1
2
Remove the cover plate.
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Pull out the spur gear.
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Take out the tensioner slide with
adjusting screw and thrust pad.
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5.7 Chain Tensioner