Skyjack SJ12 E - 6.8 Use the service pin

64
SJ12 E, SJ16 E, SJ20 E
241914ACA
Section 4 – Troubleshooting Information Electrical System
4.2 Electrical System
4.2-1 All Controls Inoperative
NOTE
Functions may be disabled by the load sense system. Please rst make sure that the mast is fully retracted,
the platform is free of added weight, and there are no faults in the load sense system
Functions may be disabled by the machine control system. Please rst make sure that the machine is on a
rm level surface, the charger is not plugged in, and check for any messages or codes displayed. Refer to
section 57-2 Display Module Error Codes
1. Battery cables loose/disconnected Tighten or connect battery cables
2. Battery Discharged or Defective Charge battery or replace if defective
3. Fuse F1 defective or open Replace fuse.
4. Loose or broken B+ cable 03 from batteries to
battery disconnect switch S1
Check continuity. Replace if defective.
5. Open or defective battery disconnect switch S1 Close switch. Replace if defective
6. Loose or broken wire #03A from battery
disconnect switch S1 to motor contactor C1
common
Check continuity. Replace if defective
7. Loose or broken wire #03A from motor contactor
C1 to circuit breaker CB1
Check continuity. Replace if defective
8. Circuit breaker CB1 tripped or defective.
Reset breaker, check for defective wiring. Replace
if defective.
9. Loose or broken wire #05 from circuit breaker
CB1 to base emergency stop switch S28.
Check continuity. Replace if defective.
10. Open or defective base emergency stop switch
S28.
Close switch. Replace if defective.
11. Loose or broken wire #05A from base
emergency stop switch S28 to base key switch
S10.
Check continuity. Replace if defective.
12. Loose or broken #05A wires between base key
switch S10 terminals
Check continuity. Replace if defective.
13. Open or defective key select switch S10 Close switch. Replace if defective
14. Loose or broken wire #08C from base key switch
S10 to motor contactor C1 coil +
Check continuity. Replace if defective.
15. Loose or broken wire #08C from motor contactor
C1 coil + to machine controller pin A3.
Check continuity. Replace if defective.
16. Loose or broken wire 07 from base key switch to
machine controller pin B12
Check continuity. Replace if defective.