MR VACUTAP VMS - Emptying the Oil Compartment and Oil Conservator

7 Maintenance
Maschinenfabrik Reinhausen GmbH 202052 5993419/02 ENVACUTAP
®
VMS
®
2. Depending on version, loosen 4 or 6 screws on coupling brackets to upper
gear unit and bevel gear.
Figure24: Loosening coupling brackets
3. Remove horizontal drive shaft. Be sure not to lose the coupling bolts.
Figure25: Removing drive shaft
7.3.3 Emptying the oil compartment and oil conservator
1. Ensure that the stop-cock between oil conservator and on-load tap-
changer is open.
2. Remove the screw cap on air-vent valve E1 on the on-load tap-changer
head cover.
3. Use a screwdriver to lift the valve tappet on air-vent valve E1.
ð The gas under the on-load tap-changer head cover escapes. When do-
ing so, ensure sufficient ventilation.