| 74 | 4 Servicing | CARDIOHELP System |
Service Manual | 3.3 | EN | 05
Copyright Maquet Cardiopulmonary GmbH
4 Cut the cable tie [3].
Speaker
5 Open the hex nuts [2] with a socket wrench of 7 mm.
6 Replace the speaker.
7 Affix the new speaker with a force of 1 Nm and Loctite 270.
CAUTION!
Make sure that the sealing of the speaker covers the speaker slots.
8 Connect the speaker plug on the HMI PCB.
9 Affix the speaker cable with a cable tie.
10 Assemble the battery housing (⇨ "Assemble Battery Housing", page 117).
▶ Make sure to replace the gasket sealing (⇨ "Replacing Gasket Sealing", page 117).
11 Close the device (⇨ "Closing the Device", page 110).
12 Carry out a complete inspection (⇨ "Inspection", page 33).
u Speaker replaced.
u Inspection after repair has been carried out.
4.7 Lubricating the Emergency Drive
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.
WARNING!
To finish the task, the following step must be carried out in order to ensure error-free use.
n Carrying out the inspection (⇨ "Inspection", page 33).
1 Dismantle the emergency drive (⇨ "Dismantling the Emergency
Drive", page 106).
Dismantling
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