Troubleshooting - Husqvarna 525PT5S Operator's Manual

2. If the saw chain lubrication does not operate
correctly, do a check of the guide bar. Refer to
a check of the guide bar on page 19 for instructions.
Speak to your servicing dealer if the maintenance
steps does not help.
To adjust chain lubrication
WARNING:
make adjustments to the oil pump.
Turn the adjustment screw for the oil pump. Use a
screwdriver or combination wrench.
The engine does not start
Check
Stop switch.
Fuel tank.
Spark plug and cylinder.
The engine starts but stops again
Check
Fuel tank
Air filter
712 - 007 - 28.04.2021
Stop the engine before you

Troubleshooting

Possible cause
The stop switch is in the stop posi-
tion.
Incorrect fuel type.
The spark plug is dirty or wet.
The spark plug electrode gap is in-
correct.
The spark plug is loose.
Engine is flooded because of repea-
ted starts with full choke after igni-
tion.
Possible cause
Incorrect fuel type.
The air filter is clogged.
• Turn the adjuster screw clockwise to increase the oil
To do
flow.
• Turn the adjuster screw anticlockwise to decrease
the oil flow.
Procedure
Empty the fuel tank and fill it with correct fuel.
Clean the air filter.
Procedure
Let an approved service agent re-
place the stop switch.
Drain the fuel tank and fill with cor-
rect fuel.
Make sure that the spark plug is dry
and clean.
Clean the spark plug. Make sure that
the electrode gap is correct, refer to
Technical data on page 24 . Make
sure that the spark plug has a su-
pressor.
Tighten the spark plug.
Remove and clean the spark plug.
Put the product on its side with the
spark plug hole away from you. Pull
the starter rope handle 6-8 times. As-
semble the spark plug and start the
To start the product
product. Refer to
on page 14 .
23