Husqvarna AutoTune 545RXT Operator's Manual page 25

CAUTION:
grease can cause damage to the bevel
gear.
6. Install the grease plug.
Drive shaft
Lubricate the drive shaft at an interval of 3 months. Let
a service agent help you if you are not sure about the
procedure.
To attach and remove the locknut
WARNING:
protective gloves and be careful around the
sharp edges of the cutting attachment.
Use the locknut to attach some types of cutting
attachments. The locknut has a left thread.
• Use a socket wrench with a shaft that is sufficiently
long to let you keep your hand behind the cutting
attachment guard. The arrow in the illustration shows
the area where you can safely operate the socket
wrench.
• To attach, tighten the locknut in the opposite
direction to how the cutting attachment rotates.
• To remove the locknut, turn it in the same direction
as how the cutting attachment rotates.
171 - 010 - 12.05.2022
An incorrect quantity of
Stop the engine, use
• Keep count when you remove and attach the
locknut. Replace the locknut after approximately 10
times.
Note:
Make sure that you can not turn the locknut by
hand. Replace the locknut if the nylon lining does not
have a resistance of a minimum of 1.5 Nm.
To examine the spark plug
CAUTION:
recommended spark plug type. Incorrect
spark plug type can cause damage to the
product.
• Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
• To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
a) Make sure that the idle speed is correctly
adjusted.
b) Make sure that the fuel mixture is correct.
c) Make sure that the air filter is clean.
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
on page 28 .
• Replace the spark plug if it is necessary.
To adjust the engine
Follow these instructions if the engine does not operate
correctly.
1. Attach an approved cutting attachment, see
Accessories on page 29 .
2. Start the engine.
3. Operate the product in usual conditions for 3
minutes.
4. Lift the cutting attachment in the air and apply full
throttle for 30 seconds. If a trimmer head is used,
make sure that the trimmer line is cut to correct
length by the guard knife.
Note:
Do not cut grass or branches during this
step.
5. Operate the product in usual conditions to make sure
that the engine operates correctly.
Always use the
Technical data
25