Troubleshooting - Husqvarna 520iRX Operator's Manual

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3. Remove the nut that holds the trimmer head and the
drive disc.
4. Replace the trimmer head.
5. Install the nut.
6. Install the line chute assembly.
7. Install the trimmer head.
To sharpen the grass knife and grass
blade
WARNING:
protective gloves.
Keypad
LED display
Green activate LED flashing.
Red error LED flashing.
The product does not start.
Error LED is lit with red light.
757 - 008 - 16.02.2024
Stop the product. Use

Troubleshooting

Possible faults
Low battery voltage.
Identifying the cutting tool.
The power trigger and the acti-
vate button are pressed at the
same time.
Overload.
Temperature deviation.
Dirt in the battery connectors.
The product needs servicing.
WARNING:
that is damaged. Do not try to make a bent
or twisted blade straight and use it again.
To sharpen the grass knife or grass blade correctly,
refer to the instructions that come with the cutting
attachment.
Sharpen all edges equally to keep the balance.
Use a single-cut flat file.
Possible action
Charge the battery.
Release the throttle.
Release the power trigger and the product is
active.
The cutting attachment is jammed. deacti-
vate the product.
Remove the battery. Clean the cutting at-
tachment from unwanted materials.
Let the product cool down.
Clean the battery connectors with com-
pressed air or a soft brush.
Contact your servicing agent.
Always discard a blade
21

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