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7. Changing the fuses
To change the fuses, see Fig.3 and follow the instructions given below.
1. Carry out steps 1 to 5 of the instructions for changing the batteries.
2. Lift the printed circuit board out of the top half of the case. Do not remove any of the screws from the printed circuit
board.
3. Remove the faulty fuse by levering one end up out of the fuse holder and then pulling the fuse out of the fuse holder by this
end.
4. Fit a new fuse of the same size and ratings into the fuse holder. Make sure that the fuse is centered longitudinally in the
fuse holder.
5. Make sure that the bar of the rotary switch in the top half of the case and the rotary switch on the printed circuit
board are both in the "OFF" position.
6. Fit the printed circuit board back into the top half of the case.
7. Fit the bottom half of the case back onto the top half, making sure as you do so that the seals are properly seated and you
do not catch the lead from the holder between the two halves of the case. Hook the two hooked lugs into the top half of the
case.
8. Screw the three screws in the bottom half of the case back in.
Fuse Specification
1A 6.3 x 32mm 415V Fast HBC 10kA
10A 6.3 x 32mm 415V Fast HBC 10kA
20
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