Installation and operating manual
EN-8
G932.1 - 06/2010
EN
EN
with two electric load limiting devices. An overload is recognised
when lifting. When delivered, the load limiting device has been
set in such a way that it deactivates the hoist at the latest once
the load reaches 1.25 times the load bearing capacity.
Spring-applied brake
The electromagnetic spring-applied brake automatically locks
when the operating control for travelling UP or DOWN is released
or when the power fails.
Centrifugal brake
A centrifugal brake on the motor shaft of the hoist ensures that
the load is not lowered too fast when the spring-applied brake on
the hoist’s motor is released manually.
Limit Switch / emergency limit switch
The path of the hoist for lifting must be limited by one or multiple
limit switches, so that the upward and / or downward movement
is stopped. The operator or the system manufacturer must de-
termine the design and the fitting position of the limit switches
when taking their risk assessment into account.
The operator or system manufacturer must install a limit switch
and, if necessary, an emergency limit switch and a floor limit
switch and connect them to the hoist. The limit switch must have
a positive opening.
EN 14492-1 must also be taken into account when inspecting the
equipment.
Running hours counter
The running hours can be read from the running hours counter,
in order to determine when the next hoist safety check must be
carried out.
Phase sequence relay (hoists without converter)
In control units operating by three-phase current, the phase
sequence relay shuts down the system in the case of an incor-
rect phase sequence and this prevents an UP / DOWN travel
direction mix-up, which could potentially disable the limit switches
and load limiting devices.
4.8
Anchoring
The hoist can be anchored with and without an adapter (see pos.
D in Fig. 2).
Anchoring without adapter: At least 2 screws with a minimum
strength class of 8.8 with self-locking nuts.
Anchoring with adapter: 2 screws with a minimum strength class
of 8.8 with self-locking nuts.
Bolts that have at least the same strength and a similar quality
for securing can be used instead of the screws.
See also '
9.3 Assembly' on page 10.
4.9
Increasing the load bearing capacity
DANGER!
Incorrect anchoring! Incorrect usage!
Risk of being injured by falling objects!
The load on the deflection roller, rigging and the anchoring
point increases depending on the arrangement of the hoisting
gear, deflection roller and load!
–
The minimum breaking strength of the deflection roller,
the rigging and the anchoring point must be four times
greater than the nominal load of the hoist in the given in-
stallation situation (see Fig. 8).
The load bearing capacity of the hoist can be increased by reev-
ing the rope, see Fig. 8 (F corresponds to the load bearing ca-
pacity of the hoist).
Note:
Reeving the rope reduces the hoist speed.
5
Ropes
DANGER!
Incorrect rope or rope with incorrect diameter!
Using an incorrect rope leads to a danger of falling or injury
through falling objects and the risk of malfunctions!
–
In order to operate safely only use original ropes author-
ized by Greifzug Hebezeugbau GmbH with the correct
rope diameter and the required design.
–
If the load cannot be guided by on-site means then a low-
twist wire rope with a swivel hook or a rope swivel must
be used.
–
The required rope diameter is listed Table 1 on page III.
The design is listed Table 5 on page 17.
6
Optional accessories
The following accessories can also be purchased:
Deflection roller
Adapter, eye hook or master link
Please contact Greifzug Hebezeugbau GmbH directly.
7
Options
Please contact Greifzug Hebezeugbau GmbH directly.