6.2 Shut-off filter and close the inlet
And outlet valves before the oil
Pumps begin to suck air and be-
Fore hose connections are moved to a new tank.
Remark.
If the oil Is very cold throttle the
outlet valve to achieve some circula-
tion within filter.
Emptying of condenser vessels
The vacuum pump stops automatically and
a warning lamp lights up when condenser
oil level becomes too high. In such case
stop the filtration and empty the condenser
in accordance with the procedure below.