Husqvarna 333R Mark II Operator's Manual page 9

Protective devices on the product
• Make sure that you regularly do the maintenance to
the product.
• The life of the product increases.
• The risk of accidents decreases.
Let an approved dealer or an approved service
center regularly examine the product to do
adjustments or repairs.
• Do not use a product with damaged protective
equipment. If the product is damaged, speak to an
approved service center.
Throttle trigger lockout
The throttle trigger lockout (A) prevents accidental
operation of the throttle trigger (B). Push the throttle
trigger lockout (A) to release the throttle trigger (B).
When you release the handle, the throttle trigger lockout
(A) and the throttle trigger (B) go back to their initial
positions.
(Fig. 18)
Two isolated return springs control this movement. This
means that the throttle trigger (B) is automatically locked
at the idle position.
1. Make sure that the throttle trigger (B) is locked at idle
when you release the throttle trigger lockout (A).
2. Push the throttle trigger lockout (A) and make sure
that it goes back to its initial position when you
release it.
3. Push the throttle trigger (B) and make sure that it
goes back to its initial position when you release it.
Start the engine, and then apply full throttle. Release the
throttle trigger (B) and examine if the cutting attachment
stops. If the cutting attachment turns with the throttle in
the idle position, examine the idle adjustment screw of
the carburetor.
Stop switch
Start the engine. Make sure that the engine stops when
you move the stop switch to the stop position.
(Fig. 19)
Cutting attachment guard
WARNING: Do not use a cutting attachment
without an approved guard. If an incorrect or
defective guard is installed, this can cause
damage to persons.
The cutting attachment guard prevents a loose object to
eject in the direction of the operator. Examine the cutting
attachment guard for damage and replace if it is
damaged. Only use the approved guard for the cutting
attachment.
(Fig. 20)
1542 - 002 - 17.07.2020
To do a check of the quick-release mechanism
WARNING: Do not use a harness with a
defective quick-release mechanism.
The quick-release mechanism lets the operator remove
the product quickly from the harness if there is an
emergency.
1. Stop the engine.
2. Do a visual check for damage, for example cracks.
3. Release and attach the quick-release mechanism to
make sure that it operates correctly. (Fig. 21)
Muffler
(Fig. 22)
The muffler keeps the noise level to a minimum and
keeps exhaust fumes away from the operator.
• Do not use an engine with a damaged muffler. A
damaged muffler increases the noise level and the
risk of fire. Keep a fire extinguisher near.
• Examine regularly that the muffler is attached to the
product.
• Do not touch the engine or the muffler when then
engine is on. Do not touch the engine or the muffler
for a while after the engine stops. Hot surfaces can
cause injuries.
• A hot muffler can cause a fire. Be careful, if you use
the product near flammable liquids or fumes.
• Do not touch the parts in the muffler, if the muffler is
damaged. The parts can contain some carcinogenic
chemicals.
To attach and remove the locknut
WARNING: Stop the engine, use protective
gloves and be careful around the sharp
edges of the cutting attachment.
A locknut is used to attach some types of cutting
attachments. The locknut has a left thread.
• To attach, tighten the locknut in the opposite
direction to the direction of turning of the cutting
attachment.
• To remove the locknut, loosen the locknut in the
same direction as the cutting attachment rotates.
• To loosen and tighten the locknut, use a socket
wrench with a long shaft. The arrow in the picture
shows the area where you can operate the socket
wrench. (Fig. 23)
WARNING: When you loosen and
tighten the locknut, there is a risk of
injury from the blade. You must always
make sure that the blade guard prevents
injury to your hand when you do this.
9