User Manual

Table Of Contents
Electric System LEXION 500 TIC
44a-4 Lex-e-44a 03/05
Possible errors:
Brake pressure switch of
gearshift defective
When the signal from switches Z79 and Z80 has been identified for more
than 30 minutes, the message "Braking pressure switch for gear-shift
mechanism defective" is displayed on terminal A30.
Shifting gears is prevented until the signals from switches Z79 and Z80
are again identified as being a correct function. The error is stored in the
error memory.
Ground speed control lever
neutral position defective
If signals from the ground speed sensor (B16) are still present although
the "Ground speed control lever neutral" signal has been detected, the
message "Ground speed control lever neutral position switch defective" is
displayed on terminal A30. Shifting gears is prevented until a correct
function is again detected. The error is stored in the error memory (see
also diagram 25).
Gearshift operating error If the signals from the brake circuit pressure switches Z79 and Z80 or from
the ground speed control lever neutral switch Z57 are interrupted during
the shifting process, the changeover is not carried out any more. The
message "Ground speed lever in neutral position! / Apply foot brake –
otherwise unable to change gear!" is displayed on terminal A30.