User Manual

Electric System LEXION 500 TIC
17a-4 Lex-e-17a 03/05
Description of function:
2/2
Reverse front attachment The front attachment must not be engaged as a pre-condition for the
reversing function. The speed monitor module (A12) connects voltage to
the reverse switch (S57) as an additional safety feature only after the feed
rake conveyor speed sensor (B12) stops transmitting a signal for approx.
2 seconds.
If these pre-conditions are met, voltage is connected from the speed
monitor module (A12) to solenoid coil (Y86) via the reverse switch (S57) –
Front attachment reverse function.
The master valve (Y77) is actuated via the diode PCB (DO) in parallel
with the solenoid coil (Y86) because this function requires that pressure is
built up in the system.
Important! When the reversing function is active, a signal is connected
to the reel module (A16) which makes the reel drive variable
displacement pump swing to maximum delivery, depending
on the front attachment identification – circuit diagram 22.
Seat contact circuit
A
fter leaving the operator's seat, all circuits depending on the seat contact
are interrupted after approx. 5 seconds.