Chapter 10: Servicing / repair
Fresenius Medical Care 4008 S (Version V10) SM-EN 7/01.13 10-25
10.8.3 Heater block, heater rod and float switch
10.8.3.1 Heater block complete
Removal
To disassemble the heating block completely,
proceed as follows:
– Pull the float switch plug and the PT2
temperature sensor out of the HPU.
– Pull the float switch cable and the PT2
temperature sensor cable out of the cable
harness.
– Protect the components underneath the
heater block from leaking fluid with a cloth.
– Disconnect each tube (1) with a tube
clamp (2).
– Pull the tubes (1) off the respective
components.
– Insert all tube ends into a collection vessel
(3).
– Open the tube clamp (2) and collect the
fluid.
– Pull off all other tubes from the heater
block.
– Seal off all tubes with plugs.
– Unscrew 2 screws (1).
– Lift the heating block slightly and remove
it.