Husqvarna 553RBX Operating Instructions Manual page 8

The cutting attachment guard prevents injuries from
objects that eject in the direction of the operator. It also
prevents injuries that occur if you touch the cutting
attachment.
1. Do a visual check for damages, for example cracks.
2. Replace the cutting attachment guard if it is
damaged.
To do a check of the vibration damping
system
The vibration damping system decreases vibration in the
handles to a minimum which makes the operation
easier.
1. Stop the engine.
2. Do a visual check for deformation and damage, for
example cracks.
3. Make sure that the elements of the vibration
damping system are attached correctly.
To do a check of the muffler
WARNING: Never use a product with a
faulty muffler.
8
WARNING: Bear in mind that the exhaust
fumes from the engine are hot and may
contain sparks which can start a fire. Never
start the product indoors or near
combustible material!
The muffler keeps noise levels to a minimum and sends
exhaust fumes away from the operator. For mufflers it is
very important that you follow the instructions on how to
check, maintain and service your product.
• Regularly check that the muffler is securely attached
to the product.
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.
1104 - 001 - 11.04.2019