Maintenance Instructions
9.12.14
Kapitel/Chapter 9: Maintenance Instructions - Seite/Page 145
Fig. 9.14-3: Ventilating screw on the thermostat housing
2. Open the ventilating screw on the thermostat casing.
Use spanner size 10 mm.
Fig. 9.14-4: Cooling water filler cap
3. Pour cooling water into the cooling water filling necks.
(At generators without filler, The cooling water can be
filled into the external expansion tank instead)
4. If the cooling water level no longer drops (the cooling
water level in cold waters must cover the tin in the
exhaust elbow), close the filler cover and the cooling
water screws and then start the generator.
5. Run the generator for approx. 60 Seconds, then switch off
6. Refill cooling water via the compensation tank.
7. The compensation tank is connected to the generator by
two hoses.
The external compensation tank should be filled to a max 20 % in a cold state. It is very important that a larger
expansion area is maintained above the cooling water level.
8. Repeat this procedure 1 - 5 times.
If there is no change to the state of the cooling water level, the generator is re-started for 5 minutes. Thereafter the
de-aeration must be repeated two to three times.
Fig. 9.14-5: Ventilation screw above the cooling water pump
casing
The ventilation screw above the cooling water pump
casing may not be opened under any circumstances,
whilst the generator is running. Air will be sucked
through the opening, if this should happen by mistake.
Venting the whole system afterwards is necessary and
very difficult.
