1
2
4
5
3
② Lift off the top cover.
③ Check the wall brackets
2
necessary.
④ Oil moving parts with WD40 or similar,
especially the sliding brackets
⑤ Check all electrical connections to the
control box
⑥ Check the chain wheel
⑦ Oil the chain
⑧ Put the unit cover back again and tighten
the retaining screws. Reconnect mains.
and tighten if
1
.
3
for wear.
4
.
5
en
.
2
15