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Section 4 – Troubleshooting Information
All Controls Inoperative from Platform Console:
NOTE
Functions may be disabled by the dual load zone system and/or overload system if equipped. Please first
ensure the boom is fully retracted and there are no faults in the dual load/overload system.
1. Open or defective emergency stop switch S4.
2. Loose or broken wire #04A from emergency stop
switch S4 to platform start switch S9.
3. Loose or broken wire #04 emergency stop
switch S4 to platform terminal block.
4. Loose or broken wire #04B from platform
terminal block to footswitch S11.
5. Open or defective footswitch S11.
6. Loose or broken wire #04 from platform terminal
block to valve driver connector J1 pin #1, 2, 3,
and 4.
7. Loose or broken wire #02 from platform terminal
block to valve driver connector J1 pin #10, 11,
12, and 13.
8. Loose or broken wire #04 from platform terminal
block to diode D04.
9. Open or defective diode D04.
10. Loose or broken wire #60 from diode D04 to
platform terminal block.
11. Loose or broken wire #60 from platform terminal
block to plug B pin #16 in platform control
console.
12. Loose or broken wire #60 in boom cable B or its
connectors.
13. Loose or broken wire #60 from plug B pin #16 to
base terminal block.
14. Loose or broken wire #02 from platform terminal
block to base terminal block.
229044ADA
102
Pull emergency switch out. Check continuity
through switch. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity through switch while activating
footswitch function between wires #04 and #08A. If
no continuity found replace switch.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check diode. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check for continuity between pins #16 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Electrical System
SJ85 AJ
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