| CARDIOHELP System | 4 Servicing | 69 |
Service Manual | 3.3 | EN | 05
Copyright Maquet Cardiopulmonary GmbH
4.3 Replacing Fan Drive
Service interval
24 months
Requirements
Service training part 2
WARNING!
Faulty installing and failures could be increase the blood temperature of the patient.
WARNING!
To finish the task, the following steps must be carried out in order to ensure error-free use.
n Check the airstream of the fan drive.
n Carrying out the inspection (⇨ "Inspection", page 33).
1 Disconnect the CARDIOHELP from the external power supply.
2 Remove the batteries (⇨ "Replacing the Batteries", page 67).
3 Disassemble the fan guards.
CARDIOHELP drive
4 Disassemble the fans.
5 Disconnect the fans.
6 Reconnect the new fans.
7 Assemble the fans with a force of 0.3 Nm and Loctite 270.
CAUTION!
n Make sure the flow direction of the fans is right. The airstream must guide outside.
n The flow direction is labeled with an arrow at the frame of the fan.
8 Assemble the fans with a force of 0.5 Nm and Loctite 270.
9 Carry out a complete inspection (⇨ "Inspection", page 33).
u Fan drive replaced.
u Inspection after repair has been carried out.
4.4 Replacing Battery Housing Fan
Service interval
24 months
Requirements
Service training part 2
CAUTION!
ESD-sensitive components
To prevent damage to ESD-sensitive components, an ESD-protected environment must be set up.
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