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Anchoring point
The structural equipment to be used for attaching the product
must be designed in compliance with the applicable Directives
and standards (see '9.1 Directives and standards' on page 10).
The application's overall suspended load must be taken into
account regarding the design of the suspended construction. The
overall suspended load is the actual suspended static load,
which is made up of the payload, the load lifting equipment's own
weight, the additional fittings, the wire ropes and the control and
connection cables.
If necessary, a test report must be included, in which the static
and dynamic tests that were run are described in detail.
Drive path
During lifting processes the drive path 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 determine the
design and the fitting position of the limit switches when taking
their risk assessment into account.
The operator or system manufacturer must install an operational
limit switch and, if necessary, an emergency limit switch and a
floor limit switch and connect them to the hoist. The limit switches
must have a positive opening.
The gap between the limit switch and the wire rope anchoring or
the protruding components must be chosen so that the machine
can be switched off reliably and in good time. We recommend
that you use a minimum gap (Size a) of between 0.5 to 1.5 m.
See Fig. 9.
The wire rope must be long enough so that the rope end connec-
tion or the load bearing point or the rope end itself cannot be
pulled up to or into the product or the accessory parts.
Operating equipment
It must be possible to position the operating equipment in such a
way that safe operation is always possible regardless of the
movements of the hoist.
The control buttons must be arranged so that there is no possibil-
ity of confusion.
Nameplate and warning signs / application
restrictions
Replace missing or illegible nameplates and warning signs im-
mediately.
See Fig. 4.
Item Name
1
Warning sign 'Wire rope diameter'
2
tirak™ nameplate
3
Brake nameplate
4
Electric motor nameplate
G919.6 - 07/2012
Item Name
5
Emergency descend warning sign
6
Rope identification (on the rope)
The necessary information can be obtained from the nameplate.
Directives and standards
Applicable directives and standards: See '9.1 Directives and
standards' on page 10.
Product versions covered in the manual
The product versions described in this manual are listed in
Table 1 on page II.
Running hours counter
The running hours counter is located in the hoist's terminal box.
The running hours counter counts the time in which the hoist is in
operation as running hours (UPWARD and DOWNWARD
movements). To read the running hours counter: See
'15.3 Reading the running hours counter' on page 19.
4
Description
4.1
Functional description
The tirak
is a hoist for the transport of persons or for persons
TM
and materials. The hoist is operated with an electric motor.
The hoists can raise and lower as well as pull and release in the
pulling direction of the rope.
Operation is carried out via a button panel, control box or a cen-
tral control unit.
The electromagnetic spring-applied brake automatically locks
when the operating control for travelling UP or DOWN is released
or when the power fails. When lowering the load by manually
venting the spring-applied brake a centrifugal brake prevents the
rope from accelerating up to a fast speed.
The hoist's payload can be multiplied according to the block and
tackle principle by reeving the rope. See '4.9 Load limits' on Page
10.
Press the EMERGENCY-STOP button to stop the hoist immedi-
ately in an emergency situation.
The hoists are equipped with a mechanical load limiting device.
The load limiting device will active automatically when the over-
load setting is reached. The downward travel of the hoist is
stopped. The maximum overload that has to be set up can be
found in the applicable directives and standards (See
'9.1 Directives and standards' on Page 10).
The system manufacturer / operator is responsible for determi-
ning and setting up the application dependent maximum overload.
Installation and operating manual
EN-7
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