Circuit Boards - Husqvarna P524 Workshop Manual

5.3.2 Circuit boards

NB!
It is important to check the circuit outside of
the circuit board first, to ensure this is correct,
before replacing the circuit board. This is so
that the new circuit board is not damaged by
an external fault.
For more information, refer to sections "7.1 Wiring
diagram" on page 89 and "7.3 Troubleshooting
schedule" on page 91.
Tools
Round nose pliers, bent
Torx
Combination wrench
Dismantling
1. Loosen the negative cable from the battery.
2. Dismantle the side cover.
3. Check the marking on the cable connections
and note the position of the cables. Some
connections have markings on the cables.
Supplement if necessary when the connections
have been disconnected. Contacts are color
coded and the corresponding color is given on
the circuit board.
4. Loosen all connections from the circuit board.
Use bent round nosed pliers to press in the
plastic catches holding the connections.
Dimension
T30
10 mm
5. Dismantle the screw holding the circuit board
bracket.
6. Carefully remove the circuit board bracket.
7. Unscrew the circuit board bracket and the circuit
board.
8. Save the plastic washers used as spacers
between the circuit board bracket and the circuit
board.
Assembling
NB!
Make sure the plastic washers are used as
spacers between the circuit board bracket
and the circuit board.
1. Assemble in reverse order.
2. Connect the battery.
3. Test all the electrical functions and check the
LEDs on the circuit board.
4. Assemble the side cover.
5. Check the function.
Electrical system
English – 43