Husqvarna 525RX Operator's Manual page 21

Maintenance
Examine the cutting attachment guard for damages and cracks. Replace the
guard if it has been exposed to impact or is cracked.
Examine the trimmer head for damages and cracks. Replace if damaged.
Make sure that the screws and nuts are tight.
Examine the engine, the fuel tank and the fuel lines for leaks.
Clean the cooling system.
Examine the starter and the starter rope for damages.
Examine the vibration damping elements for damages and cracks.
Clean the outside of the spark plug. Remove it and do a check of the electrode
gap. Adjust the gap to the correct distance (see,
replace the spark plug. Make sure that the spark plug is fitted with a suppressor.
Clean the outside of the carburettor and the space around it.
Do a check of the bevel gear to make sure that it is filled 3/4 with lubricant. Use
special grease to fill if necessary.
Clean or replace the spark arrestor mesh on the muffler (only applies to mufflers
without a catalytic converter).
Do a check of the fuel filter for contamination and the fuel hose for cracks or
other defects. Replace if necessary.
Do a check of all cables and connections.
Do a check of the clutch, clutch springs and the clutch drum for wear. Replace if
necessary by an autorized service workshop.
Replace the spark plug. Make sure that the spark plug is fitted with a suppres-
sor.
Check and clean the spark arrestor mesh on the muffler (only applies to mufflers
without a catalytic converter).
To adjust the idle speed
Your Husqvarna product is made to specifications that
decrease harmful emissions.
1. Make sure that the air filter is clean and the air filter
cover is attached before you adjust the idle speed.
2. Adjust the idle speed with the idle speed screw
which is identified with "T" mark.
1345 - 002 - 03.06.2022
Technical data on page 26 ) or
a) Turn the idle speed screw clockwise until the
cutting attachment starts to rotate.
b) Turn the idle speed screw counterclockwise until
the cutting attachment stops.
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