Linde 350 Series Service Training page 135

Ic engined truck with linde hydraulic control lhc
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Service Training
31
The voltage values of potentiometers 1B2.1 and 1B2.2 do not match, and neither is 0 V.
The values supplied by both potentiometers are not within the admissible tolerance range.
Possible cause: potentiometer
32
The voltage value of potentiometer 1B2.1 is either too low or too high.
The voltage value supplied by potentiometer 1B2.1 is not within the admissible range. It is either
below 0.8 V or over 9.2 V. Check this value in window 6. For a setting of the maximum values see
the description in window 6. If an adjustment can not be carried out successfully, the potentiometer
could be defective.
Truck responses: W – B – L
33
The voltage value of potentiometer 1B2.2 is either too low or too high.
The voltage value supplied by potentiometer 1B2.2 is not within the admissible range.
Possible cause: potentiometer
Truck responses: W – B – L
34
Both potentiometers 1B2.1 and 1B2.2 at 0 Volt
The voltage of approx. 10 Volt specified by the LHC box can not be processed further.
Possible causes: potentiometer not connected, potentiometer defective, cable loom
Truck responses: W – B – L
35
Travel direction signal encoding is not OK
The controller can not sense if it is a single-pedal or two-pedal vehicle.
Possible causes: encoding plug (near key switch); travel direction switch not connected or faulty,
cable loom (negative signals to LHC box not present, check)
--> Window 4)
Truck responses: W – B – L
36
Signal from travel direction switch
A signal expected from the travel direction switch can not be detected.
Possible causes: travel direction switch, cable loom (check negative signals coming from travel
direction switch to LHC box ) --> window 4
Truck responses: W – B – L
37
Brake switch 1 (1S5) breaker and maker have the same signal.
The brake switch does not change its outputs from 0 to 1 and from 1 to 0. --> window 4
Possible causes: brake switch defective, open connection (check negative signals coming from
brake switch to LHC module)
Truck responses: W – B
38
Switching sequence of brake switch 1 (1S5) and brake switch 2 (S14) is not OK.
The controller first expects (operation of brake pedal) brake switch 1 (1S5), before brake switch
2 (S14) becomes active. --> window 4
Possible causes: both brake switch connectors interchanged; brake switch 1 (1S5) not
connected, brake switch 1 defective; cable loom from brake switch 1 to LHC module
Truck responses: W – B
Section
02.01
Page
2
109

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