Solo USA 280 사용자 설명서

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English / USA
MS 270, MS 270 C, MS 280, MS 280 C
:
Remove the chain sprocket cover, 
chain and guide bar.
:
Disengage the chain brake:
Pull hand guard toward the front 
handle.
Replace the chain sprocket after 
using two Oilomatic chains.
Replace sooner if the wear marks 
on the sprocket are deeper than 
approx. 0.02 in (0,5 mm) since this 
would reduce the life of the chain. 
You can use a gauge (“Special 
Accessories”) to check the depth of 
the wear marks on sprockets.
It is best to use two chains in 
rotation with one sprocket.
Use only original STIHL chain sprockets 
to ensure correct operation of the chain 
brake.
:
Use a screwdriver to remove 
the E-clip (1).
:
Take off the washer (2) and rim 
sprocket (3).
:
Examine splines on clutch drum (4) 
– if wear marks are severe, fit a new 
clutch drum.
:
Pull clutch drum or spur sprocket  
(5)
 and needle cage (6) off the 
crankshaft.
Installing spur sprocket /
rim sprocket
:
Clean the crankshaft stub and 
needle cage, and lubricate with 
STlHL grease (“Special 
Accessories”).
:
push needle cage on to crankshaft
:
After fitting clutch drum or spur 
sprocket, rotate it about one turn to 
engage oil pump drive.
:
Fit rim sprocket with cavities facing 
outward.
:
Refit washer and E-clip on the 
crankshaft.
Checking and Replacing 
Chain Sprocket
001BA121 KN
001BA122 KN
1
2
4
5
6
1
2
3
6