Jonsered BC 2255 Service Manual

English

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Turn the blade shaft until one of the holes in the drive disc 
aligns with the corresponding hole in the gear housing.

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Insert the locking pin (C) in the hole to lock the shaft.

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Place the blade (D) and support flange (F) on the output 
shaft.

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Fit the nut (G). The nut must be tightened to a torque of 
35-50 Nm (3.5-5 kpm). Use the socket spanner in the tool 
kit. Hold the shaft of the spanner as close to the blade 
guard as possible. To tighten the nut, turn the spanner in 
the opposite direction to the direction of rotation (Caution! 
left-hand thread).

When loosening and tightening the saw blade nut, there is a 
risk of injury from the teeth of the saw blade. You should 
therefore always ensure that your hand is shielded by the 
blade guard when doing this. Always use a socket spanner 
with a shaft that is long enough to allow this. The arrow in the 
diagram shows the area where you should operate the socket 
spanner when loosening or tightening the nut.

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Fit the trimmer guard/combination guard (A) intended for 
use with the trimmer head/plastic blades. Hang the 
trimmer guard/combination guard (A) on the two hooks on 
the plate holder (M). Bend the guard around the shaft and 
tighten it with the bolt (L) on the opposite side of the shaft. 
Use the locking pin (C). Place the locking pin in the groove 
on the screw head and tighten. See diagram.

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Fit the drive disc (B) on the output shaft.

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Centre the metal cup (P) on the drive disc’s blade guide.

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Turn the blade shaft until one of the holes in the drive disc 
aligns with the corresponding hole in the gear housing.

•

Insert the locking pin (C) in the hole to lock the shaft.

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Screw on the trimmer head/plastic blades (H) in the 
opposite direction to the direction of rotation.

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To dismantle, follow the instructions in the reverse order.

H

H