OPERATING INSTRUCTIONS RH170

Inspection and servicing

Water trap (option)

Water contained in the fuel is removed by the water trap (Fig. 3-62:).

Draining off water

Carry out the following works in accordance with the servicing schedule and at regular intervals:

 Loosen venting plug (9, Fig. 3-63:) and leave drain valve (3) open until there is no more water in the diesel fuel flowing out of the valve.

Collect escaping liquid in a recipient suitable for diesel fuel and discard without polluting the environment.

The liquid flowing out of the valve flushes and cleans the filter element(6) von from top to bottom.

 Close drain valve (3) and tighten venting plug (9).