Vyaire VELA, Service Manual

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3-1
33373-001 Version A
Chapter 3: Disassembly and Assembly
3.1 General Instructions and Warnings
When performing the procedures in this chapter, refer to the VELA wiring and tubing diagrams.
Reference copies of these are located in Appendix B of this manual. Ensure that you follow these
safety warnings and precautions:
Figure 3-1. Battery Disconnect Molex Connector
WARNING
Always disconnect the main power cable before removing the instrument cover and disconnect the
battery once the top cover and battery tray have been removed to prevent injury and/or damage to
the VELA Ventilator System (Figure 3-2).
CAUTION
The VELA contains ESD susceptible components. Ensure you are properly grounded through a
current-limiting connection before performing any service or maintenance procedures, and store
ESD susceptible electrical components in anti-static bags to prevent damage to the components.
NOTE
When the batteries are disconnected, the system will automatically re-set the battery status
memory and will initiate a 30-hour re-charge cycle upon re-connect. If the DC status light is not
green after the initial charging period has expired, contact Vyaire tech support as described in
Appendix A.
NOTE
The terms left and right refer to a view from the front of the unit looking towards the rear.
3.2 Required Tools
Long & short Philips screwdrivers Digital Volt Meter
Flat bladed screwdriver
Tack puller or Needle nosed pliers
¼” Nut Driver
Diagonal cutters
5/16” Nut Driver 11/32” Nut Driver
7/8” Nut Driver 1” and ¾” open ended wrenches