Operating The Hoist - Tractel minifor TR 10 Installations-, Gebrauchs- Und Wartungsanleitung

• The wire rope must be fully unwound and untwisted
over its entire length before you begin to install it in
the hoist.
• Lubricate the lifting wire rope to facilitate insertion in
GB
the hoist.
• Check that the high limit stop is engaged on the lifting
wire rope (spring toward unit) on the wire rope hook
side.
• Connect the power wire rope to the power outlet.
• Insert the free end of the lifting wire rope (welded,
rounded tip) in the unit through the engagement hole
marked by an arrow on the casing.
NOTE: Never insert the wire rope in the other hole ; this
hole is only used for exit of the wire rope. Never secure
a load to the loose end of the wire rope.
• Press the "up" button on the control box while pushing
the wire rope so that it engages on the pulley in the
unit. (see three-phase units, see 5.3).
• When the wire rope comes out of the unit, continue the
movement to obtain a length of wire rope of around 1
meter coming out of the unit.
• On the free end of the wire rope (1), slide on the low
limit stop so that the end of the spring is near the unit
(2) and tighten the screw on the stop ring (3) using
an ALLEN wrench (4). There should be at least one
meter of wire rope between this ring and the wire
rope end.
• Ensure that the stop cannot slide on the wire rope.
(Fig. 15).
NOTE: You may wish to further limit the travel of the
load downward; in this case, unwind the corresponding
length of wire rope before securing the limit ring.
On the other end, secure the high limit stop ring in
accordance with the height at which you may want
to limit the travel of the load in the upward direction.
Secure the limit stop and check it by applying the same
procedure as for the low limit stop.
• Check that the hoist limit levers operate correctly,
as well as the other safety devices as described in
section 8.
There should be a limit stop at around 1 meter
ahead of the free end of the lifting wire rope and
another limit stop on the wire rope hook slide, both
limit stops securely and appropriately attached.
This a mandatory safety requirement.
5.5. Limit stops and pulleys
If the installation comprises one or several return
pulleys, only pulleys of appropriate diameter should
be used. In this case, the high limit (1) and low limit
(2) stops must be positioned on the wire rope so that
neither the high limit stop or the load be able to come
into contact with a pulley. The high limit stop must be
mounted between the hoist and the pulley which is
nearest on the wire rope path (see Fig. 13).
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IMPORTANT
Check that the anchor points and pulleys are of
appropriate strength with respect to the forces
which will be applied.
5.6. Check with load
With the load fastened, lift it slightly and check that the
"Up" and "Down" controls operate correctly; also check
operation of the "Emergency stop" control.
Once you have ensured that these functions operate
correctly, you can proceed with the maneuvers.
If the unit does not operate correctly, return it to
a TRACTEL -approved repair agent (Also see section
®
5.3).

6. Operating the hoist

The hoist is operated by pressing on either the "Up" or
"Down" button on the control box (Fig. 2). The control
box must always be held in the vertical position,
hanging on its control cable. Never turn over the control
box (control cable entry downward) as this can result in
control mistakes.
When the "Up" or "Down" button is released, the
movement stops. When using the minifor™ to lift a load
to a very high location, the unit should be stopped for
around 15 minutes every fifty meters of operation to
prevent the unit from overheating.
All motors are protected against overheating by a heat
probe in the winding. This probe inhibits operation
by opening the control circuit so long as the winding
temperature has not returned to an acceptable value.
NOTE: The casing may heat up to 80°C. This is normal.
A red emergency stop button is provided to stop
movement of the system in the event of incorrect
operation of the "Up" or "Down" buttons (see section 8:
Safety devices).
The following precautions must be taken when
performing up or down movements:
• The load should not swing or turn.
• Keep all obstacles away from the lifting wire rope and
load.
• Check that the loose strand is free along its entire
length.
• Do not allow the loaded strand to become loose if
the load is not stably bearing on a sufficiently strong
support.
• Do not apply short successive actions on the push
buttons.