Husqvarna 520iHT4 Workshop Manual page 12

identification number (HID). The identification
number is found on the spare part.
1. Remove the battery from the product.
2. Connect the adapter cable (A) to the battery (B) and
to the battery slot connector (C) on the product.
C
3. Make sure that the product is in operation mode.
4. Start the common service tool (CST) on the
computer.
5. Connect the cable (D) to the computer.
6. Obey the instructions on the common service tool
(CST) and in the related chapter in this manual.
CAUTION: Do not disconnect the product
until the update is completed.
WARNING: Do not push the power trigger.
The motor can operate when the product is
in servicing mode.
4.2.3 To do troubleshooting of the common service
tool
If there is no signal to the common service tool when it is
connected to the product, do the procedure that follows.
1. Make sure that the connectors on the battery and on
the product are clean and not damaged. Replace the
battery or control unit on the product if there is
damage.
2. Make sure that the cable to the common service tool
is clean and not damaged. Replace the cable if there
is damage.
3. Restart the computer.
4. Install the software again.
12 - Servicing tools
A
B
D
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