KAESER KOMPRESSOREN M250, Руководство оператора, Страница: 131 / 426

Draining the coolant:
The complete volume of coolant contained in the circuit can be drained from the radiator. This is
done from a drain valve with the aid of a separate drain hose.
Fig. 42 Draining the coolant from the radiator
1
Filler cap
2
Coolant equalising tank
3
Water cooler
4
Coolant drain - water cooler
5
Shut-off valve (ball valve)
I - open
0 - closed
6
Quick-release coupling
7
Drain hose with male fitting
1. Unlock the service cover of the coolant expansion tank (on the roof) from inside and lift up.
2. Slowly open the cap on the coolant filler by a quarter to half of a turn to allow pressure to es‐
cape.
3. Then remove the filler cap completely.
4. Position a receptacle beneath the water cooler drain point (accessible through a hole in the
floor panel).
5. Connect a drain hose
7
to the radiator quick-release coupling
6
. If provided, open the shut-off
valve at the nozzle of the draining hose.
6. Lead the hose through the hole in the floor panel and into the receptacle, securing it in place.
7. Open the shut-off valve
5
and catch the draining coolant.
8. Close the shut-off valve and remove the drain hose.
9. Screw in the cap of the filler plug and close the service cover.
10. Close the doors.
Draining the cooling oil (closed floor pan)
Compressor cooling oil and engine coolant drain lines are led to a central point outside the ma‐
chine with closed floor pan. They are located at the rear of the machine, in a recessed connection
box. The box can be accessed from below by removing a cover.
10 Maintenance
10.4 Engine maintenance
No.: 9_9570 07 USE
Operator Manual Screw Compressor
M250 SIGMA CONTROL MOBIL
117
Option oe