TELELIFT 3713 SX
TECHNICAL SPECIFICATIONS
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Document 57.4402.9200 - 1
st
Edition 10/2006
INDEX
A fact to be held in mind is that, due to inevitable friction
between load cell and bushings, the cell can remain
slightly loaded, sensing a higher-than-normal weight. The
result is that, with the vehicle in the same conditions and
with same weight on the forks, the alarm will be activated
when the boom is extended at a greater distance than
the distance set during calibration.
When the vehicle is moving or operating, the vibrations
on the rear axle cancel out the residual tension of the cell,
and the system works perfectly. Since during calibration
the vehicle is standing still, it is important to “bounce” the
vehicle before every calibration step, abruptly lowering
and raising the boom. This ensures that the weight
sensed by the cell is the actual weight applied on the
rear axle.
Carry out all maneuvers in safety, making sure the
working range of the machine is clear of persons or
objects.
The upper and lower ends of the readout scale are
adjusted with multiturn trimmers. The system allows to
choose between two ranges, depending whether the
stabilisers are up or down. In the former case, trimmers
VR1
and
VR
will be adjusted; in the latter case (both
stabilisers down), trimmers
VR
and
VR4
will be adjusted
(see Fig. 4).
The function of the trimmers is the following:
Range with
stabilisers
up
stabilisers
down
lower setpoint
upper setpoint
VR1
VR2
VR3
VR4
When the lower setpoint of the readout scale is being
calibrated, the vehicle must have the forks unloaded
and the boom completely retracted. When calibrating the
upper setpoint, the vehicle must have a known weight
loaded on the forks and the boom must be extended
at the distance shown on the appropriate load chart. In
either case, the boom shall be perfectly horizontal.
Turning the adjustment screws on the trimmers
counterclockwise will turn on more LEDs (from right to
left); rotating the screws clockwise turns off more LEDs
(from left to right). The adjustment screws have no
mechanical stops.
Fig. 4
VR1 VR2 VR3 VR4
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Summary of Contents for Telelift 3713 SX
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