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Husqvarna GZ381 Manual De Usuario página 33

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To do a check of the muffler
WARNING:
has a defective muffler or a muffler that is in
bad condition.
WARNING:
the spark arrestor mesh on the muffler is
missing or defective.
1. Examine the muffler for damages and defects.
2. Make sure that the muffler is correctly attached to
the product. (Fig. 101)
3. If your product has a special spark arrestor mesh,
clean the spark arrestor mesh weekly. (Fig. 102)
4. Replace a damaged spark arrestor mesh.
CAUTION:
is blocked the product becomes too hot
and this causes damage to the cylinder and
piston.
To adjust the idle speed screw (T)
The basic carburetor adjustments are done at the
factory. You can adjust the idle speed but for more
adjustments, refer to your servicing dealer.
To give the components of the engine sufficient
lubrication during run-in, adjust the idle speed. Adjust
the idle speed to the recommended idle speed. Refer to
Technical data on page 38 .
CAUTION:
at idle speed, turn the idle speed screw
counterclockwise until the saw chain stops.
1. Start the product.
2. Turn the idle speed screw clockwise until the saw
chain starts to rotate.
3. Turn the idle speed screw counterclockwise until the
saw chain stops.
Note:
The idle speed is correctly adjusted when the
engine runs correctly in all positions. The idle speed
must also be safely below the speed at which the saw
chain starts to rotate.
WARNING:
stop when you turn the idle speed screw,
speak to your servicing dealer. Do not use
the product until it is correctly adjusted.
1284 - 005 - 09.11.2022
Do not use a product that
Do not use a product if
If the spark arrestor mesh
If the saw chain rotates
If the saw chain does not
To examine if the carburetor is correctly
adjusted
Make sure that the product has the correct
acceleration capacity.
Make sure that the saw chain does not rotate at idle
speed.
CAUTION:
can cause damage to the engine.
To replace a broken or worn starter
rope
1. Loosen the screws to the starter housing
2. Remove the starter housing. (Fig. 103)
3. Pull out the starter rope approximately 30 cm/12 in
and put it in the notch on the pulley.
4. Let the pulley rotate slowly rearward to release the
recoil spring. (Fig. 104)
5. Remove the center screw, the drive disc (A), the
drive disc spring (B) and the pulley (C).
WARNING:
when you replace the return spring or
the starter rope. The recoil spring is in
tension when it is wound up in the starter
housing. If you are not careful, it can
eject and cause injuries. Use protective
glasses and protective gloves.
6. Remove the used starter rope from the handle and
the pulley.
7. Attach a new starter rope to the pulley. Wind the
starter rope approximately 3 turns around the pulley.
8. Connect the pulley to the recoil spring (D). The end
of the recoil spring must engage in the pulley.
9. Assemble the drive disc spring, the drive disc and
the center screw.
10. Pull the starter rope through the hole in the starter
housing and the starter rope handle.
11. Make a tight knot at the end of the starter rope. (Fig.
105)
To tighten the recoil spring
1. Put the starter rope into the notch in the pulley.
2. Turn the starter pulley approximately 2 turns
clockwise.
3. Pull the starter rope handle and pull out the starter
rope fully.
4. Put your thumb on the pulley.
5. Move your thumb and release the starter rope.
6. Make sure that you can turn the pulley ½ turn after
the starter rope is fully extended. (Fig. 106)
Incorrect adjustments
You must be careful
33

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