Tesmec AFS303, Installation, Operation And Maintenance Manual

Page: 18 / 88

PULLER-TENSIONER
Model: AFS303
Manual: MI-AFS303-320-00-GB Date: 30.03.2015 Author: MC Page: 15 of 32
4.7.2 PULL PROGRAMMING DEVICE SETTING
ATTENTION: THE OPERATIONS TO SET THE PULL MUST BE CARRIED OUT WITH
STARTED DIESEL ENGINE BUT WHEN THE MACHINE IS TURNED OFF.

Start the diesel engine and set the engine at about 1600 rpm.

Move the selector (table 1, pos. 5) on position (rightwards).

Gently move towards (downwards) the lever (table 1, pos. 4).

Turn the knob (table 1, pos. 6) till on the manometer ring nut (table 1, pos. 1) can be read the pull
value that must not be exceeded.
ATTENTION: the red arrow of the pull limiting device has to be positioned at a higher
value than the one pre-set with the PULL PROGRAMMING DEVICE to avoid the machine
stop.
DANGER: when using a machine as tensioner, position the pull limiting device
on the maximum scale, to avoid dangerous stopping.
This operation is absolutely indispensable when the mach
ine “tensioner” works with a
puller without pull limiting device.

Gently move the lever (table 1, pos. 4) to central position (neutral position).

Re-place the selector (table 1, pos. 5) on position (leftwards).
Once reached the set pull the bull-wheels automatically stop without the diesel engine turning off
with the consequent machine stop. The bull-wheels will remain stopped till when the cause which
tried to raise the pull over the imposed value is removed (line obstacles, increase of friction on the
pulleys, braking mistakes, etc.).
ATTENTION: after finishing the above mentioned operations and beginning stringing
operations, it is important not to touch the knob
(table 1, pos. 6).
In fact, should the knob be rotated while the machine is stringing, this operation
cancels the previous carried out calibration and the systems set on the new values
congruent with new position of the knob.
Then, avoid this operation, using it only in emergency situations.
ATTENTION: before starting the work, check if the selector (table 1, pos. 5) is on
position . It is forbidden to move the selector (table 1, pos. 5) during working
operations because dangerous situations because the machine immediately stops may
happen.
ATTENTION: the dynamometer is calibrated with 3 scales: puller, tensioner and fine
braking. Read the desired values in function of the operations to be carried out (pulling
or tensioning).