Operator's Manual-AVEA - Static Content

Service Manual 85
Chapter 7 Removal & Replacement
WARNIINGS
• Disconnect all electrical power, air, and oxygen sources before attempting
any disassembly. Failure to do so could result in injury to the service
technician or damage to equipment.
• After replacement of any assembly(ies), always repeat the Operational
Verification Procedure (refer to chapter 3), then allow a "burn-in" period and
repeat the Operational Verification Procedure.
Interior Access
1. If connected, remove cables leading to RS-232 and Analog outputs ports of the
ventilator.
2. Remove the seven screws indicated in Figure 8-1.
3. Slide the cover off of the unit applying slight pressure to the outside bottom
portion of the cover.
4. Remove the two screws indicated in Figure 8-2. The standoff tubes will drop
free when the screws are removed.
NOTE
The front portion will swing forward freely when the screws are removed. Take care
to ensure that the front swings slowly to avoid damage to the unit.
5. The front portion of the unit will drop forward, stopping when the end of the
retaining cord is reached. See Figure 8-3.
Flow Valve Assembly Removal
1. Disconnect hoses and connectors to the assembly.
2. Remove the four screws from the flow valve bracket, indicated in Figure 8-4.
3. Remove the Flow Valve Assembly from the unit.
4. To install, reverse removal procedure.
Control PCB Removal
1. Disconnect all hoses and connectors from the board.
2. Remove screw shown in Figure 8-5.
3. Lift board carefully from four retainer points.
4. Remove board from unit.
5. To install, reverse removal procedure.
L2342 Revision B November 2004