Document 57.4402.9200 - 1
st
Edition 10/2006
INDEX
TELELIFT 3713 SX
INTRODUCTION
vi
the feeding line, connected to an accumulator (
19
) with
0.5 lt. capacity and a fill pressure of 50 bar, connected
to port R1, and the service brake line, is established so
the flow is distributed to such line and the discharge line
increasing, in this way, the pressure (and as a result the
braking force) on the line of the service brake. When the
slider is in the rest position, the line of the service brake
is connected to the discharge. The pressure switch set
at 2-10 bar, placed on the line of the service brake,
sends an electrical signal when this brake is engaged.
The other pressure switch set at 70 bar and connected
to port F, sends an electrical warning signal when the
pressure inside the feeding circuit of the brake line is
too low to guarantee the minimum braking efficiency.
The oil coming from the drain line of the main valve (
1
)
is cooled down by heat exchanger (
9
) which is divided
in two sectors, i.e. one absorbing heat from the cooling
circuit of the diesel engine and the other absorbing heat
from the hydraulic circuit of the machine. The oil cooled
down by the heat exchanger flows to tank (
11
) directly.
A one-way valve calibrated at 8 bar (
10
), is installed
parallel to the input line of the heat exchanger and used
as safety valve. Its function is to avoid overpressure
conditions of the heat exchanger (as is the case of
a machine starting at low temperatures) by directly
draining any excess oil into the tank.
Summary of Contents for Telelift 3713 SX
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