1
1
en
• Check all electrical connections to the control box
• Check the chain wheel
• Oil the chain
• Put the unit cover back again and tighten the retaining screws .
20
1
1
2
2
5
6
3
3
4
2
2
for wear .
⑤
.
⑥
Disconnect mains before
removing the covers.
Remove the upper and lower retaining
screws
on the lift unit cover and
①
carefully remove the cover .
• Check the wall brackets
tighten if necessary .
• Oil moving parts, especially the
sliding brackets
.
④
and
②
.
③