BT REFLEX RR B Service Manual page 260

24- 48
Electronic card – 5710
Warning codes with registration
T-code
403-414, 669-671, 716-718
Date
2005-06-01
Code 51
Description Output 711 short circuit/breakage
Error mode General error
Error cause 1. Emergency switch for Y1 activated
2. Faulty wiring/valve Y21
3. Defective electronic card A5
Comments
Hydraulic valve Y21 engages cab lowering
1. Check that the switch S134 is open.
2. Disconnect the cable 102 from output 711.
- Check that the connector pins make contact, no play and no oxi-
disation.
- Check that the cable 102 is intact between terminal 711 and the
terminals in X30.
- Measure the coil on Y21 between the blue and black cables in
X30 with an ohmmeter. Resistance approx. 70 ohm.
- Check that cable 40 is intact from X30 to the battery negative.
3. If the fault remains, replace A5.
Service Manual REFLEX RR B/E, RR B/E CC
https://www.forkliftpdfmanuals.com/
Valid from serial number
713962-
Order number
218920-040
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