Exchanging The Timer; Exchanging The Ventilator Of Rk 1050 Bh - BANDELIN SONOREX RK 31 Service Instructions Manual

4. 6

Exchanging the timer

- Pull the mains plug!
- Remove the screws from the base plate (see point 3).
- Lift the base plate carefully.
- Remove knob. Older units are equipped with turning knobs incl. threaded bolt. Loosen it before
exchanging.
- Pull off the plug connections from the timer.
- Loosen the steel screws from the housing and pull out the timer. Replace the seal if present, insert the
new timer. Push the felt washer onto the axis.
Assembly in reverse order.
timer with metal angle
(not present at all timers)
Notes:
-
The wiring diagram is a part of the mounting instruction delivered with the spare timer.
-
The type of the timer Mi7-1 does not fit into old RK 31-housings with an over-all height of
about 155 mm (new over-all height 170 mm). Therefore, the timer type N is necessary.
4. 7

Exchanging the ventilator of RK 1050 BH

- Remove the base plate (see point 3).
- Mark both plug connections of the ventilator and pull them off.
- Loosen the four attaching screws / nuts from defective ventilator.
- Exchange the ventilator and assemble in reverse order.
seal
at older units
housing
19
steel screws
or M3 screws
threaded bolt
at older units
felt washer
Turning knob
drawn offset by 90°
square nut