Interacoustics AT235 Service Manual page 7

Service Manual
AT235
Remove the screw with an Unbrako key 1.5.
Fig. 9
Fig. 11
Use a flat bladed screwdriver to carefully open the
lock mechanism holding the wheel in place.
Fig. 10
Once unlocked, the wheel with the pump tube can
be lifted up and off of the module. It is now ready
for replacement.
NOTICE
The wheel may have a tight fit and
thus require some effort to remove.
5