Miele DA 420V-6 Operating And Installation Instructions page 47

 Fit the four telescopic piece clamps
between the tower and the telescopic
piece. The internal telescopic piece
rests on the clamps. When the
screws are tightened, the clamps
spread out and push the telescopic
piece upwards.
Tighten the screws only until the top
edge of the telescopic piece is
evenly aligned with the ceiling or the
spacer frame.
When the canopy is lowered, the
distance to the hob must not be less
than the safety distance (see
"Appliance dimensions"). The height
range for the appliance can be
extended or limited by repositioning the
limit switch.
 Press the  button.
The canopy will be lowered to its fullest
extent.
 Check the distance to the hob.
If it is less than the safety distance, the
limit switch must be repositioned.
 Release the upper limit switch.
Installation
47