Husqvarna GARDENA SILENO city Workshop Manual page 21

before you start to work on electrical
components.
CAUTION: Do not touch the circuit board's
components or pin terminals.
6.8.1 To replace the front sensor circuit board
CAUTION: Some sensors consists of a Hall
sensor and a magnet. Since the magnet have a
south and a north pole, it is important that the
magnet is oriented correctly.
The front sensor circuit board contains the front loop
sensor and the front lift sensor. The sensors cannot be
replaced separately. The entire front sensor circuit board
must be replaced as a unit.
1. Disassemble the body system. Refer to
disassemble the body system on page 17 .
2. Disassemble the upper chassis. Refer to
disassemble the upper chassis on page 19 .
3. Disconnect the cable from the front sensor circuit
board.
4. A plastic clip holds the front sensor circuit board and
the main circuit board in position. Push the 2 clips to
remove it.
1067 - 001 - 16.04.2019
5. Pull up the front sensor circuit board and remove it.
6. Fit the new front sensor circuit board.
7. Refit the plastic clip.
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8. Reconnect the cable.
9. Reassemble the upper chassis and the body
To
system. Refer to
the body system on page 28 .
6.8.2 To replace the main circuit board
The product's operating information is stored in the main
circuit board. The Autocheck service program saves this
information in the log book and then transfers it back to
the product again when the main circuit board has been
replaced.
1. Connect the product to Autocheck before replacing
the main circuit board. The operating data is then
saved automatically.
2. Disassemble the body system. Refer to
disassemble the body system on page 17 .
3. Disassemble the upper chassis. Refer to
disassemble the upper chassis on page 19 .
4. Disconnect the power cable (A) and all other cables
from the main circuit board.
5. Remove the plastic clip. Refer to step 4 in
replace the front sensor circuit board on page 21 .
To assemble the upper chassis and
To
To
A
Repair instructions - 21
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