Troubleshooting - Husqvarna 525BX Bedienungsanweisung

To examine and clean the cooling
system
The cooling system includes the cooling fins on the
cylinder and the air intake screen.
1. Stop the engine.
2. Make sure that the cooling system is not dirty or
blocked. If it is necessary, clean the air intake screen
and cooling fins.
CAUTION: A dirty or blocked cooling
system can increase the temperature of
the engine and cause damage to the
product. A clogged air intake screen
decreases the blow force.
3. Examine the cooling system for damages. Make
sure that the parts are attached correctly to the
product.
To clean the air filter
CAUTION: Do not use a product without an
air filter or with a damaged air filter. Dust in
the air can cause damage to the engine.
1. Push the choke control to the closed choke postition.
The engine is not possible to start
Check Possible cause
Stop button. Stop position
Starter pawl/s. Blocked or
worn starter
pawl/s.
Fuel tank. Incorrect fuel
type.
Carburetor. Adjustment of
the idle speed.
Spark (no Spark plug dirty
spark). or wet.
Electrode gap
on the spark
plug is incor-
rect.
10

Troubleshooting

Solution
Set the stop switch to the start position.
Adjust or replace the starter pawl/s.
Clean around the starter pawl/s.
Speak to an approved servicing dealer.
Drain the fuel tank and use correct fuel.
Adjust the idle speed with the idle adjustment screw.
Make sure that the spark plug is dry and clean.
Clean the spark plug. Make sure that the electrode gap is correct. Make sure
that the spark plug is installed with a suppressor.
Refer to technical data for the correct electrode gap.
2. Remove the air filter cover (A).
D
3. Remove the air filter (B) from the filter frame.
4. Clean the air filter (B) with warm water and soap.
Note: An air filter that has been used for a long time
cannot be fully cleaned. Replace the air filter
regularly and always replace a defective air filter.
5. Clean the inner surface of the air filter cover (A) with
a brush.
6. Remove and replace the felt filter (C) if it is dirty.
7. Install the screen (D), the felt filter (C) and the air
filter (B).
8. Install the air filter cover (A) to the product.
C
B
A
1436 - 001 - 09.03.2020