PULLER-TENSIONER
Model: AFB506
Manual: MI-AFB506-149-00-GB
4.12 USE OF THE MACHINE WITH HYDRAULICALLY CONNECTED BULL-WHEELS (1+2)
a. Check if the mechanical transmission of the bull-wheel no. 1 is
set on the ratio: high pull – yellow pilot lamp switching off
(table 1, pos. 29)
b. Set the selector (table 1, pos. 42) to "CONNECTED
CIRCUITS" position (rightwards).
c. Speed up the Diesel engine by the accelerator (table 1, pos.
18) till a maximum of 2400 rpm.
d. Adjust the hydraulic oil radiator by the valve (table 1, pos. 28).
e. Move the levers (table 1, pos. 34-40) to position
(downwards) to set the pull value on each bull-wheel and the
recovery or release speed of the rope.
NOTE: this way, the bull-wheels 1 and 2 are hydraulically connected; it is possible to
control 2 ropes at the same time, each one with max. pull of 45 kN, operating on a
single control lever.
Now the machine is ready for working automatically: each independent circuit can detect if the rope
tension is lower than the pre-set one (therefore it starts recovering) or if it is higher than the pre-set
one (therefore it starts braking while stringing).
NOTE: in this case, although the lever (table 1, pos. 34) is not active, the dynamometer
(table 1, pos. 30) and the relevant electric pull control device are working.
Therefore, both the electric pull control devices must be set as previously described.
Pull values can be read on the two scales engraved on the ring nut of each dynamometer
(table 1, pos. 30-36).
To Next Page
Loading...
