151
SJ63 AJ+, SJ63 AJ 229043AAA
Electrical System - CE & AS Section 4 – Troubleshooting Information
3. Loose or broken wire #4 emergency stop switch
S4 to platform terminal block.
Check continuity. Replace if defective.
4. Loose or broken pin jumper between #04
and #04B on platform terminal block (without
generator option only).
Check continuity. Replace if defective.
5. Loose or broken wire #04 from platform terminal
block to generator switch S22 (generator option
only).
Check continuity. Replace if defective.
6. Generator switch S22 in generator mode or is
open or defective (generator option only).
Select OFF mode on generator switch. Check
continuity through switch from #04 to #04B.
Replace if defective.
7. Loose or broken wire #04B from generator
switch S22 to platform terminal block (generator
option only).
Check continuity. Replace if defective.
8. Loose or broken wire #04B from platform
terminal block to footswitch S11.
Check continuity. Replace if defective.
9. Open or defective footswitch S11. Check continuity through switch while activating
footswitch function between wires #04B and #08A.
If no continuity found replace switch.
10. Loose or broken wire #08A from footswitch S11
to valve driver pin #16.
Check continuity. Replace if defective.
11. Loose or broken wire #04 from platform terminal
block to valve driver pin #1, 2 & 13.
Check continuity. Replace if defective.
12. Loose or broken wire #02 from platform terminal
block to valve driver pin #24, 25 & 26.
Check continuity. Replace if defective.
13. No output on pin #6 of the valve driver to wire
#08.
Check pin #6 for 12 volts. If no voltage present with
foot on footswitch check section 5 for valve driver
test procedure.
14. Loose or broken wire #04 from platform terminal
block to diode D04.
Check continuity. Replace if defective.
15. Open or defective diode D04. Check diode. Replace if defective.
16. Loose or broken wire #60 from diode D04 to
platform terminal block.
Check continuity. Replace if defective.
17. Loose or broken wire #60 from platform terminal
block to plug B pin #16 in platform control
console.
Check continuity. Replace if defective.
18. Loose or broken wire #60 in boom cable B or its
connectors.
Check for continuity between pins #16 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
19. Loose or broken wire #60 from plug B pin #16 to
base terminal block.
Check continuity. Replace if defective.
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