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SJ30AJE, SJ30ARJE 196274AF
Electrical System Section 4 – Troubleshooting Information
4.2-21 All Controls Inoperative from Platform Control Console
1. Loose or broken wire #04 from emergency stop
switch S4 to platform terminal block.
Check continuity. Replace if defective.
2. Loose or broken wire #04 from platform terminal
block to footswitch S6.
Check continuity. Replace if defective.
3. Open or defective footswitch S6. Check continuity through switch while activating
footswitch function between wires #04 and if no
continuity found replace switch.
4. Loose or broken wire #08A from footswitch S11
to platform terminal block.
Check continuity. Replace if defective.
5. Loose or broken wire #04 from platform terminal
block to valve driver pin #1, 2 & 13.
Check continuity. Replace if defective.
6. Loose or broken wire #02 from platform terminal
block to valve driver pin #24, 25 & 26.
Check continuity. Replace if defective.
7. Open or defective diode D8A. Check diode. Replace if defective.
8. Loose or broken wire #8B from platform terminal
block to plug B pin #5 in platform control
console.
Check continuity. Replace if defective.
9. Loose or broken wire #8B in boom cable B or its
connectors.
Check continuity. Replace if defective.
10. Loose or broken wire #8B from plug B pin #5 to
base terminal block.
Check continuity. Replace if defective.
11. Loose or broken wire #8B from base terminal
block to motor control harness A.
Check continuity. Replace if defective.
12. Loose or broken wire #8B from motor control
harness A pin #12 to left motor controller pin
#LM1 and right motor controller pin #RM1.
Check continuity. Replace if defective.
13. Loose or broken wire #208 from right motor
controller pin #RM6 to motor control harness A
pin #11.
Check continuity. Replace if defective.
14. Loose or broken wire #208 from motor control
harness A to 208CR relay.
Check continuity. Replace if defective.
15. Loose or broken wire #208 from 208CR relay to
platform plug B pin #6 in base control console.
Check continuity. Replace if defective.
16. Loose or broken wire #208 in boom cable B or
its connectors.
Check for continuity between pins #6 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
17. Loose or broken wire #208 from plug B pin #5 in
platform control console to relay 208CR1.
Check continuity. Replace if defective.
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