Electrical System; All Controls Inoperative - Skyjack SJ85 AJ Service Manual

Section 4 – Troubleshooting Information

4.2 Electrical System

4.2-1 All Controls Inoperative

All Controls Inoperative from Platform and Base:
1. Battery cables loose/disconnected.
2. Battery discharged or defective.
3. Loose or broken B+ cable from batteries to
battery disconnect switch S1.
4. Open or defective battery disconnect switch S1
5. Loose or broken wire #03 from battery
disconnect switch S1 to circuit breaker CB1
6. Circuit breaker CB1 tripped or defective.
7. Loose or broken wire #05 from circuit breaker
CB1 to base emergency stop switch S3.
8. Open or defective base emergency stop switch
S3.
9. Loose or broken wire #07 from base emergency
stop switch S3 to base key S2.
10. Open or defective key select switch S2.
11. Loose or broken wire #60 from base terminal
block to relay 60CR.
12. Loose or broken wire #07 from base emergency
stop switch S3 to relay 60CR.
13. Loose or broken wire #02 from relay 60CR to
base terminal block.
14. Defective relay 60CR.
15. Loose or broken wire #9 from relay 60CR to base
terminal block.
16. Loose or broken wire #02 from base terminal
block to circuit breaker CB2.
17. Circuit breaker CB2 tripped or defective.
18. Loose or broken wire #00 from circuit breaker
CB2 to battery negative.
229044ADA
100
Tighten or connect battery cables.
Charge battery or replace if defective.
Check continuity. Replace if defective.
Close switch. Replace if defective.
Check continuity. Replace if defective.
Reset breaker, check for defective wiring. Replace
if defective.
Check continuity. Replace if defective.
Close switch. Replace if defective.
Check continuity. Replace if defective.
Close switch. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check relay. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Reset breaker, check for defective wiring. Replace
if defective.
Check continuity. Replace if defective.
Electrical System
SJ85 AJ