JBL ProSilent 100 Mode D'emploi page 15

Maintenance (Fig. C)
External care: Remove any dirt on the housing with a moist cloth. Do not immerse the appliance in water!
Avoid a decrease in efficiency:
Check the air filter (ProSilenta100 - ProSilenta400) located on the bottom of the device regularly for dirt, and replace if neces-
sary.
Air stones and other air-operated articles become clogged by limescale, etc. in the course of time. Therefore, the air stones
should be checked from time to time and replaced if necessary. Check other air-operated articles for optimum passage and
clean them if necessary.
Diaphragm replacement: Decreasing efficiency with no clogging of the air stones is an indication of a defective diaphragm.
The diaphragm may need to be replaced every 6 - 12 months. All diaphragms and other parts subject to wear and tear can
be purchased as a spare parts kit. Please make sure to always replace the entire kit in order to ensure optimum efficiency:
1. Remove the screws on the bottom of the appliance and lift the lid of the appliance.
2. Models ProSilent a100, ProSilent a200 (Fig. C2 a-h): Pull the complete unit consisting of the diaphragm, anchor
and noise suppression chamber upwards and out. Reverse the procedure to insert the new unit. Please make sure
the plug washer on the bottom of the component fits properly. The plug washer usually adheres to the small pipe
nozzle / connecting piece on the pump housing that becomes available. Apply some Petroleum jelly (Vaseline) to
the plug washer before installing the new component. This ensures proper fit when the component is installed.
Models ProSilent a300, ProSilent a400: Proceed as shown in Fig. C 2 a-h. Pull both diaphragms off of the valve
plate, swivel the anchor arms outwards and pull the anchor arms out of their mounting on the noise suppression
chamber. Loosen the screw in the middle of the valve plate and remove both valve plates. Mount the new valve
plates and anchor arms with the diaphragms in reverse order. When mounting the valve plates, make sure that
the cylinders catch in the corresponding drilled holes of the rubber seals and the noise suppression chamber on
their rear side. Make sure to always use all of the parts contained in the spare parts kit.
3. Replace the housing lid and screw it tight.
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