Tesmec FRB616, Installation, Operation And Maintenence Handbook

Page: 20 / 102

TENSIONER
Model: FRB616
Manual: MI-FRB616-020-01-GB Date: 11.03.2015 Author: M. Colleoni Page: 17 of 33
d) Move the joystick (table 4, pos. 11) towards (recovery - downwards).
Now it is possible to let the bull-wheels turn moving the selectors (table 4, pos. 13, 17) towards
position (FREE).
e) It is possible to regulate the circuit pressure acting on the potentiometers
(table 4, pos. 12,16). The pressure can be read on the dynamometers (table 4
, pos. 14,18), “puller”
scale.
f) To stop the machine, turn slightly the potentiometers (table 4, pos. 12,16) in counter-clockwise
direction till the bull-wheels rotation can be interrupted.
g) Move the joystick (table 4, pos. 11) on central neutral position.
h) Move the selectors (table 4, pos. 13,17) towards position (BLOCKED).
NOTE: if necessary to use only right or left bull-wheels, act as described above, but
only on one circuit.
NOTE: if the bull-wheels are mechanically or hydraulically connected (selector
table 4, pos. 22 placed rightwards), the vacuum brakes can be controlled only by the
selector (table 4, pos. 17), the brake by the potentiometer (table 4, pos. 16).
4.13 REEL ELEVATORS USE
The machine can feed all the reel elevators made by Tesmec.
It can feed 2 reel elevators for the use as tensioner or puller.
If using two ropes or two conductors, act as follows:
a. connect the reel elevator to one of two power takeoffs (table 6, pos. 1-2, 3-4) and disconnect the
not necessary power takeoffs by completely closing the regulator installed on the delivery rapid
couplers.
ATTENTION: this operation must be carried out when the machine is not functioning.
Verify if the regulators installed on the delivery rapid couplers which are connected the
hoses, are completely opened.
NOTE: the power takeoffs (table 6, pos. 1-3, 2-4) are feed by only an hydraulic circuit by
the regulation valve (table 4, pos. 6) .
b. regulate the desired back pull acting on the valves (table 4, pos. 6).
The pressure can be read on the relevant manometers (table 4, pos. 7).
Generally, a pressure of 50 bars is set when the machine is braking (min. pressure 20 bars-max.
pressure 70 bars) and 80 bars when the machine is recovering (min. pressure 50 bars-max. pressure
120 bars). In both cases, the pressure depends on the reel dimensions and weight and on the desired
back pull.
NOTE: if the power takeoffs are not connected, open the valves (table 4, pos. 6) till on
the manometer can be read the min. admitted pressure.