Chapter 5
Component Removal/Installation
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BiPAP Vision Service Manual © Respironics, Inc.
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5.9 Rotary Encoder
Follow these steps to replace the rotary encoder (Figure 5-14).
1. Remove the front panel enclosure (section 5.7).
2. Remove the rotary encoder cable from DC J10.
3. Pull to remove the rotary encoder knob from its shaft.
4. Remove the 7/16-in. nut and washer that attach the rotary encoder to
the front panel.
5. When reinstalling the rotary encoder, install the shaft through the
inside of the front panel enclosure (align the flat sides of the shaft
with the cutout). Ensure that the rotary encoder cable faces the top of
the enclosure, then fold the cable downward as shown.
Figure 5-14: Replacing the Rotary Encoder
6. From the front of the enclosure, install the washer and nut onto the
shaft and tighten the nut.
7. Reinstall the knob onto the shaft.
8. Reinstall the rotary encoder cable to DC J10.
Rotary encoder
cable (DC J10)
Rotary encoder: this end points
toward top of enclosure
Front panel
Knob
Not shown:
washer and nut
(10 lbf-in.)
