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SJ63 AJ+, SJ63 AJ229043AAA
Section 4 – Troubleshooting Information Electrical System - CE & AS
4.3-2 No Power To Platform
1. Open or defective key select switch S2. Close switch. Replace if defective.
2. Loose or broken wire #07A from key select
switch S2 to plug A pins # 2 & 3 in base control
console.
Check continuity. Replace if defective.
3. Loose or broken wire #07A from plug A pins
# 2 & 3 in platform control console to platform
emergency stop switch S4.
Check continuity. Replace if defective.
4. Open or defective platform emergency stop
switch S4.
Check switch. Replace if defective.
4.3-3 No Power to Base
1. Open or defective base key switch S2. Select base position on key switch. Check
continuity through base key switch. Replace if
defective.
2. Loose or broken wire #12 from base key switch
S2 to diode D12.
Check continuity. Replace if defective.
3. Loose or broken wire #12A from diode D12 to
start switch S5.
Check continuity. Replace if defective.
4. Loose or broken wire #12 from base key switch
S2 to base connector plug A pin #5.
Check continuity. Replace if defective.
5. Loose or broken wire #12 in boom cable A or its
connectors.
Check for continuity between pins #5 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
6. Loose or broken wire #12 from plug A pin #5
to emergency stop switch S4 in platform control
console.
Check continuity. Replace if defective.
7. Open or defective emergency stop switch S4. Check switch is in on position. Check continuity
through switch. Replace if defective.
8. Loose or broken wire #10 from emergency stop
switch S4 to plug A pin #4.
Check continuity. Replace if defective.
9. Loose or broken wire #10 in boom cable A or its
connectors.
Check for continuity between pins #4 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
10. Loose or broken wire #10 from plug A pin #4 to
base terminal block.
Check continuity. Replace if defective.
11. Loose or broken wire #10 from base terminal
block to base start switch S5.
Check continuity. Replace if defective.
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