Operating instructions

8
Assembly and Operating Instructions
Disconnectingclutch(AK)
Attention
Whenusingdriveswithadisconnectingclutch(AK)onsec-
tional doors with spring compensation or a counterweight, it
is imperative to install a spring fracture or anti-drop device to
prevent the door from falling down.
A disconnecting clutch should only be used on sectional
doors if the door system is fully counterweighted and the
drive is not in operation.
Note
Ensure that the chain wheel is turned as far to the left as
possible.
Installation of the chain and chain guard
- Mount the chain so that approx. 150 mm is suspended freely on the right-
hand side.
- Push the chain guard onto the chain wheel hub until it audibly clicks into
place.
Operation
The drive is decoupled from the door shaft by pulling on the chain. The coun-
terweighted sectional door can now only be opened and closed manually. Fol-
lowing operation, the drive must be coupled again by pulling the other end of
the chain.
Note
It must be ensured that the lower limit position of the door is
set so that the cables for suspending the door remain taut,
i.e., that the entire weight of the door hangs on the cables.
This guarantees the smooth running of the disconnecting
clutch. Incorrect settings (slack cable) in the lower limit po-
sition prevent smooth running of the diconnecting clutch.
Engage
Disengage
approx. 150 mm