Tesmec AFS303, Installation, Operation And Maintenance Manual

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PULLER-TENSIONER
Model: AFS303
Manual: MI-AFS303-320-00-GB Date: 30.03.2015 Author: MC Page: 17 of 32
ATTENTION: do not quickly move the lever (table 1, pos. 4) towards centre position
because a fast connection of the negative brakes that might produce dangerous
damages to the disks mounted inside the brakes may happen.
During stringing operations, the strung meters can be read on the relevant indicator.
The indicator can be set to zero by pressing the push-
button “RESET”.
During functioning operations, verify that:
a. the hydraulic oil temperature, shown on the thermometer (table 1
, pos. 16), doesn’t exceed 80°C.
This is the maximum acceptable value for the hydraulic components in case the oils suggested by
Tesmec are used. If other kinds of oils are used, the maximum acceptable working temperature
depends on their characteristics in relation also to the viscosity limits imposed by the hydraulic
pumps and motors.
b. the warning lights of the electric clogging indicators mounted on the control board
(table 1
, pos. 24 and 25) don’t switch on when the hydraulic oil reaches the working temperature.
However, it may hap
pen that the lights indicate clogging even if it doesn’t occur (especially at very
low outside temperatures). In this case, see point e) paragraph 4.4 and wait for the lights to turn off
before making the bull-wheels run.
4.10 RELEASING THE ROPE
The rope or the conductor can be released, not under load, moving the lever (table 1, pos. 4) upwards
.
4.11 COMPRESSOR CONNECTION (OPTIONAL)
The machine has been studied to be connected to a Tesmec compressor.
a. Connect the rapid couplers (table 6, pos. 5 and 6).
b. Start the machine, turn the selector (table 1, pos. 27) towards right position and close the valve
(table 1, pos. 8).
c. Lower the lever (table 6, pos. 4) in "A" position.
d. Adjust the functioning pressure of the compressor using the valve (table 6, pos. 1).
The pressure can be read on the manometer (table 6, pos. 2).
Once ended the compressing operations, to use the machine act as follows:
a. turn the valve (table 6, pos. 1) and lower the pressure in the compressor.
b. lift the lever (table 6, pos. 4) in "B" position.
c. open the valve (table 1, pos. 8).
d. turn the selector (table 1, pos. 27) towards left position .
e. remove the rapid couplers (table 6, pos. 5 e 6).
ATTENTION: the connection of the rapid couplers has to be effectuated with the lever
(table 6, pos. 4) in "B" position to discharge the pressure in the hydraulic circuit.
If there is residual pressure in the hydraulic circuit, it is not possible to connect and
disconnect the rapid couplers.