Service and repair
8-14
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
8.5 User interface (UI) assembly (lid)
8.5.1 Opening and propping lid
1.
Using 3-mm hex driver, loosen M4 x 12 screws on latch-retaining brackets (Figure 8-10).
Swing brackets aside, and open latches.
2.
Lift lid, then prop it up by tightening thumbscrew near center of lid hinge (Figure 8-11).
8.5.2 Removing/installing lid
Remove the lid from the ventilator, as follows. Install by reversing removal procedure.
1.
Open and prop lid (Section 8.5.1).
2.
Disconnect UI/ventilator head cable from controller PCB (Figure 8-10).
3.
Using 8-mm nutdriver, remove M5 nut, flat washer, and internal lockwasher that retain
ground wire. Detach ground wire from lid.
4.
Unprop lid by loosening thumbscrew.
5.
Remove lid by pulling plunger on rear wall of cabinet assembly while sliding lid to right.
Caution
• To prevent damage to the lid, take care to prevent it from falling off during removal.
Do not hold the lid assembly by grabbing on to the UI display PCB.
• To avoid damaging the keyboard, do not press on it with sharp objects and place it
on clean work surface free of debris.
6.
To service lid, place it upside-down on clean work surface free of debris. Support lid to
prevent damage to knob/encoder.
Caution
To prevent damage to ESD-sensitive components, always follow ESD guidelines when
servicing the lid.
NOTE:
When installing a new lid, transfer tension clips and attaching nuts from original to
new lid.
Summary of Contents for Puritan Bennett 700 Series
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