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Maintenance

12.6.1 Checking the fluid level

 Switch off the hot-water heater and allow it to cool down.

 Check if the fluid level is between the marks "MIN" (Fig. 219,3) and "MAX"

(Fig. 219,2) on the compensator reservoir (Fig. 219).

12.6.2 Topping up heating fluid

 Position the vehicle horizontally. This prevents the formation of bubbles.

 Switch off the hot-water heater and allow it to cool down.

 Unscrew or pull off the panel.

 Open the rotary lid (Fig. 219,1) on the compensator reservoir.

 Remove cover.

 Check anti-freeze with an anti-freeze hydrometer. The frost protection con-

tent must be 40 % or correspond to a frost protection of -25 °C.

 Fill water frost protection mixture slowly into the compensator reservoir.

12.6.3 Bleeding the heating system

The bleeding valves are built in nearby the radiators.

 Switch off the hot-water heater and allow it to cool down.

 Open bleeding valve (Fig. 220,1) and leave open until no more air escapes.

Fig. 219 Compensator reservoir hot-

water heater

Z The optimum fluid level is reached when the fluid in the compensator res-

ervoir is 1 cm above the "MIN" mark when it is cooled down.

Fig. 220 Bleeding valve of hot-water

heater

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Argo AES Series Bedienerhandbuch Seite 200