16
P1995BA/EN 2014-06
1994c_Wartung_en-bedingt.fm, 12.06.2014
Maintenance
5
5.3
Complete oil filling
If no more pulses are generated, or if the pulse unit has been removed and refitted, the pulse unit must be
completely refilled with oil:
Oil order No. 925715, ESSO-UNIVIS HVI26, approx. 2 liters, temperature 20 ±5 °C
1
Remove set bolt and ball
2
Align both ends of the pulse unit as shown in the
picture (internal equalization hole is opened)
3
Use adapter
to connect pulse unit to the
quick disconnect coupling.
Close shutoff valve
.
4
Set the working pressure to approx. 500 kPa.
Slowly open the shut-off valve all the way until
the gauge shows a negative pressure of
<10 mbar (-1 bar).
Wait approx. 2 minutes until the number of
vacuum bubbles has reduced significantly.
Slowly close the shut-off valve. The gauge
shows atmospheric pressure again. Missing oil
will be pressed back into the pulse unit.
If necessary, repeat the last 3 rundown steps
until bubbles are reduced practically to zero.
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