To Examine The Cutting Equipment; To Sharpen The Saw Chain; Information About The Guide Bar And Saw Chain - Husqvarna 128PS Manual De Usuario

8. Loosen the bar nut lightly, and loosen the
adjustment screw counterclockwise 1/4 turn if
you cannot move the chain. Tighten the bar nut.
9. Tighten the adjustment screw clockwise 1/4 turn
if the chain stays loose and hangs below the
guide bar.
To replace the chain
WARNING:
becomes worn or damaged, replace it
with the low kickback chain.
1. Disconnect the spark plug.
2. Remove the bar nuts and the clutch cover.
3. Turn the adjustment screw counterclockwise by
hand until the adjustment pin is located between
the two indicator marks on the clutch cover.
4. Move the guide bar behind the sprocket until the
guide bar stops against the sprocket. Remove
the chain.
5. Hold the new chain with the drive links .
6. Put the new chain above and behind the clutch
drum. Set the drive links in the clutch drum
sprocket.
7. Keep the bottom of the drive links between the
teeth of the sprocket in the nose of the guide bar.
8. Set the drive links into the bar groove.
9. Pull the guide bar forward until the new chain
sets in the bar groove.
10. Install the clutch cover.
11. Set the adjustment pin in the lower hole of the
guide bar.
12. Install the bar nuts and tighten them with your
hand.
13. Adjust the chain tension
tension on page 16 and tighten fully the bar nuts.
1780 - 002 - 20.04.2022
When the chain
To adjust the chain

To examine the cutting equipment

1. Make sure that there are no cracks in rivets and
links and that no rivets are loose. Replace if it is
necessary.
2. Make sure that the saw chain is easy to bend.
Replace the saw chain if it is rigid.
3. Compare the saw chain with a new saw chain to
examine if the rivets and links are worn.
4. Replace the saw chain when the longest part of
the cutting tooth is less than 4 mm/0.16 in. Also
replace the saw chain if there are cracks on the
cutters.

To sharpen the saw chain

Information about the guide bar and saw
chain
WARNING:
when you use or do maintenance on the
saw chain. A saw chain that does not
move can also cause injuries.
Replace a worn or damaged guide bar or saw
chain with the guide bar and saw chain combination
recommended by Husqvarna. This is necessary to
keep the safety functions of the product. Refer to
Accessories on page 23 , for a list of replacement
bar and chain combinations that we recommend.
• Guide bar length, in/cm. Information about the
guide bar length can usually be found on the rear
end of the guide bar.
• Number of teeth on bar tip sprocket (T).
Use protective gloves
17