MR VACUTAP - Page 70

7 Maintenance
Maschinenfabrik Reinhausen GmbH 202070 5788897/03 ENVACUTAP
®
VVS
®
4. CAUTION! Risk of crushing. Carefully place the on-load tap-changer
head cover horizontally on the on-load tap-changer head, making sure
that you do not place your fingers between the on-load tap-changer head
and on-load tap-changer head cover. Align the output shaft of the upper
gear unit such that it engages in the corresponding hollow shaft in the on-
load tap-changer head.
Figure61: Lowering on-load tap-changer head cover
5. Screw the on-load tap-changer head cover onto the on-load tap-changer
head.
Figure62: On-load tap-changer head cover
6. Fill the oil conservator with fresh insulating fluid.
7. Vent the on-load tap-changer head via air-vent valve E1 on the on-load
tap-changer head cover. To do this, remove screw cap and lift valve tap-
pet with a screwdriver.
8. Seal air-vent valve E1 with screw cap (tightening torque 10 Nm).