8
GB
N.B. Excess lubrication cannot cause the machine or
wire rope to slip.
Any machine where the side cases show signs of dents
or damage, or of which the hook is damaged (models
TU
™
8 and TU
™
16), should be returned to an approved
repairer of TRACTEL
®
’s network.
12.
WARNINGS AGAINST
HAZARDOUS OPERATIONS
The operation of tirfor
®
machines, in accordance with
the instructions of this manual, is a guarantee of safety.
Nevertheless, it is useful to draw the attention of users
to the following warnings.
– tirfor
®
machines as described in this manual must
not be used for lifting people.
– Never attempt to motorise the models of tirfor
®
machines described in this manual.
– tirfor
®
machines must not be used beyond their
maximum working load.
– tirfor
®
machines must not be used for applications
other than those for which they are intended.
– Never attempt to operate the rope release
mechanism whilst the machine is under load.
– Never obstruct the operating levers or the rope
release lever.
– Never operate the forward and reverse
operating levers at the same time.
– Never use a handle, other than the telescopic
operating handle supplied, to operate the tirfor
®
machine.
– It is forbidden to replace sheared pins by anything
other than genuine tirfor
®
shear pins of the same
model.
– Never anchor the machine other than by its
appropriate anchor point.
– Never obstruct the machine, which could prevent the
machine, the wire rope and the anchor points from
operating in a straight line.
– Never use the tirfor
®
wire rope as a sling.
– Never apply a load to the loose wire rope exiting
from the anchor point of the tirfor
®
machine.
– Never subject the controls to sharp knocks.
– Never attempt to reverse the rope completely
through the machine whilst under load.
– Do not operate the tirfor
®
machine when the
rope ferrule gets to within 10 cm of the machine.
Otherwise the ferrule is likely to foul the casing and
push the rope guide inside the machine.
– Do not use this machine if the temperature is less
than -20°C or greater than +70°C
– Do not use this machine with a diverter pulley
or a sheave which does not meet the essential
requirements of standard EN 13157
13. TROUBLESHOOTING
1) The forward operating lever moves freely and does
not operate the mechanism:
the machine has been
overloaded and the shear pins have sheared. It should
be replaced as indicated in section 9: “Replacement of
shear pins”.
2) Pumping:
A lack of lubricant in a tirfor
®
machine sometimes brings
about a condition known as “pumping” which is not at
all dangerous, but which is inconvenient. This situation
occurs when the jaw which is gripping the rope becomes
locked onto it preventing the other jaw from taking over
the load. As the operating lever is moved in one direction
the machine travels a few centimeters, but when the
operating lever travels in the other direction the machine
moves back the same distance in sympathy with the
jaw which is locked onto the rope. The tirfor
®
machine
should be thoroughly lubricated and it will recommence
working normally.
3) Jerkiness:
This is also a symptom of lack of lubrication. The tirfor
®
machine should be thoroughly lubricated.
4) Blockage:
If the wire rope becomes blocked in the machine,
generally because a damaged section of wire rope is
stuck within the jaws, it is imperative to stop operating
the machine. The load should be taken by another
machine on a separate wire rope, or by another means,
whilst ensuring that all safety precautions are taken.
When the blocked machine is no longer under load, the
damaged rope may be released and removed. Should
this not be possible, return the machine and wire rope to
the manufacturer or an approved repairer.
14. HEALTH AND SAFETY AT WORK
All lifting equipment must be supplied, operated,
maintained and tested according to the provisions of the
relevent health and safety at work regulations.
It is also the responsability of every company to ensure
that their employees have been fully and properly
trained in the safe operation of their equipment
These devices must undergo an initial check before
commissioning and periodical checks thereafter.
Ensure that the labels are in place.
Replacement labels can be supplied on request.
15. DEVICE MARKINGS AND
INFORMATION PLATES
15.1. Labelling and marking
Labels are affixed to each machine in the T500D and
TU
™
ranges.
