Husqvarna 340i Workshop Manual page 14

5.3.1.2 To disassemble and assemble the chain
tensioner
1. Remove the drive sprocket cover.
2. Remove the 2 screws and the chain tensioner cover.
3. Remove the collar (A), the chain tensioner (B) and
the shaft (C).
G
C
B
A
4. Remove the worm wheel gear (D), the washer (E),
the O-ring (F), and the chain tensioning knob (G).
5. Assemble in the opposite sequence.
5.3.2 Drive sprocket cover attached with a nut
5.3.2.1 To adjust the tension of the saw chain
WARNING: A saw chain with an incorrect
tension can come loose from the guide bar and
cause serious injury or death.
14 - Repair instructions
F
E
D
A saw chain becomes longer when you use it. Adjust the
saw chain regularly.
1. Loosen the bar nut that holds the drive sprocket
cover. Use the combination wrench.
2. Lift the front of the guide bar and turn the chain
tensioning screw. Use the combination wrench.
3. Tighten the saw chain until it is tight against the
guide bar.
4. Tighten the bar nut with the combination wrench and
lift the front of the guide bar at the same time.
5. Make sure that you can pull the saw chain around
freely by hand and that it does not hang from the
guide bar.
Note: Refer to Servicing data on page 5 for the position
of the chain tensioning screw on your product.
1435 - 001 - 11.06.2020