Permobil Chairman Basic Service Manual page 26

Changing the control unit
6. Cut off the cable ties which hold the cables
in the chassis and seat.
7. If the seat has a seat lift or seat inclination,
the cable ties which hold the cables for the
button box and the control unit must be cut
off.
8. Unscrew the three screws in the panel
holder which hold the control unit.
9. Unscrew the screws which hold the button
box.
10. Remove the button box holder by squeezing
it together so that the hooks on each side
disengage. You may need to use a
screwdriver to disengage the hooks.
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