Document 57.4400.7200 - 1
st
Edition 03/2005
INDEX
v
TELELIFT 3713 Elite - 4017 - 4514
INTRODUCTION
The control module of element 2 of the distributor is
the electro-proportional type with electrical feed-back
and integrated electronics. On the two control lines of
the cylinder
(pos. 19)
, and integral to module 2, there
are two pressure relief valves set at 295 bar which
protect the automatic levelling system of the forks when
the boom is moved up and down and in case of overload
on the attachment holding plate (ex. use of the bucket).
Module 3 of the distributor controls the boom telescopes
extension cylinder
(pos. 21)
. This cylinder is equipped
with a double-acting compensation valve with safety
function. The control module of this element of the
distributor is the electro-proportional type with electrical
feed-back and integrated electronics.
On the control line of the circular chamber of the cylinder
(pos. 21)
and integral to module 3, there is a pressure
relief valve set at 150 bar which limits the load when
the boom is extended in those working zones where
the electronic overturning control system cannot detect
overload conditions with respect to the load chart of
the machine.
Module 4 of the distributor controls the attachment
locking cylinder
(pos. 22)
. This cylinder has a double
one-way valve with hydraulic release and safety
function. The control module of this element of the
distributor is the ON/OFF electrical type with integrated
electronics.
On the feeding lines of this cylinder, there are two quick-
fit connectors
(pos. 23)
for the connection of the
hydraulic lines to the optional attachments which need
hydraulic power for their operation (ex. hydraulic winch
and maintenance jib, mixing bucket, etc.).
The SAFIM S6 servo-assisted braking system with pedal
(pos. 24)
receives oil from the pump
(pos. 4)
and uses
this oil to pressurise 3 hydraulic accumulators
connected to the same system. The oil at pressure
contained in these accumulator is then used to operate
the service brakes of the two axles
(pos. 25)
and
(pos.
26)
and to release the parking brake located inside the
front axle
(pos. 26)
.
The fill valve inside the braking system takes the flow
from the feeding line so the pressure on the line of the
accumulators reaches the calibration value of the cutout
valve set at 150 bar. When this pressure is reached, the
valve gradually releases all the flow to line B for other
uses.
The brake pedal located in the driving cab, which is an
integral part of the braking system S6, is connected to
two proportional sliders which control the two separated
lines of the service brake, one for each axle. In relation
to the stroke of these sliders, a gradual communication
between the feeding line, connected to two
accumulators which, at their turn, are connected to ports
R1 and R2 (the accumulators have 0.5-lt. capacity and
Summary of Contents for TELELIFT 3713 Elite
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