Sheaved Minifor™ (Fig. 25.C); Special Minifor™ Hoist - Tractel minifor TR 10 Installations-, Gebrauchs- Und Wartungsanleitung

hoist suspension hook mounting screw and the handle
locknut are always properly tightened. Replace these
if necessary.
GB
Any visible damage to the unit and its equipment, in
particular its hooks, lifting wire rope and electrical
conductors should be repaired before resuming
use of the unit.
Except when replacing a fuse in the electrical box,
the unit must only be opened by a TRACTEL
approved repair agent.
11. Sheaving minifor™ (fig. 25.C)
11.1. Description
A minifor™ sheaving kit can be mounted the minifor™
TR10 / TR30 / TR30S / TR50 / TR110 only. This system
will double the capacity (maximum utilization load) of
the unit (except for model TR50). On the other hand,
the speed is decreased by half.
The minifor™ must only be equipped using the minifor™
sheaving kit. No additional system should be added.
The minifor™ sheaving kit comprises (Fig. 21):
• A fastening device for the carrier wire rope strand.
• A sheaving pulley with latch hook as standard
(or self-locking hook as option) equipped with an
upper end-of-run spring,
• An assembly manual.
This kit must only be used with a minifor™.
11.2. Installation
If sheaving is used, the necessary wire rope length is
at least twice the lifting height plus around 2 m which
includes one meter for the loose strand coming out of
the unit.
The end-of-run sliding spring on the sheaving pulley
is designed to replace the top end-of-run stop that
comes with the rope. To limit the travel upward, it is
still possible to add the standard high limit stop; this is
placed between the pulley and the wire rope entry on
the unit marked by an arrow.
If sheaving is used, double the maximum utilization
load to be taken into account for safety calculations.
NOTE: Take care to mount the sheaving pulley so that
the sliding end-of-run spring is located on the rope
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IMPORTANT
IMPORTANT
between the pulley and the rope entry of the unit. See
user manual for sheaving kit. Figure 25 shows the
various configurations.
NOTE: Due to the risk of the wire rope strands
becoming entangled, the minifor™ should only be used
for direct vertical lifting (Fig. 5) when sheaving is used.
11.3. Operation
When operating the hoist with the sheaving system, the
operator must take special care to ensure that the
load does not turn in order to keep the three strands of
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the cable from becoming entangled (two loaded strands
+ loose strand). Immediately stop the load movement
if the loose strand becomes entangled with the other
strands and clear the loose strand before resuming the
hoisting operation.
For more details concerning use of the minifor™
equipped with sheaving, refer to the user manual
supplied with the minifor™ sheaving kit.
12. Special minifor™ hoist
12.1. minifor™ TR10/TR30 with integrated
winder
The TR10/TR30 models can be supplied optionally
equipped with a spring-type wire rope winder, equipped
with its cable with either of two lengths as may be
required: 20, 27 or 40 m (Fig. 25.d).
This equipment eliminates the need for a "loose" strand
of variable length.
The assembly is supplied with the two high and low limit
stops on the cable. The cable hook is equipped with a
weight. The weight is indispensable and should not be
removed.
The winder must be installed in factory. minifor™
owners can return their unit to Tractel
winder installed.
The unit must be set up and used so that its winder turns
freely without rubbing against any exterior obstacle.
A minifor™ equipped with a winder must not be
used bearing against a platform (risk of rubbing).
12.2. minifor™ with radio remote control
(Fig. 25.b)
All the minifor™ models can be supplied optionally
equipped with a radio remote control system consisting
of a portable control transmitter (Fig. 22.a) and a
to have the
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IMPORTANT