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Electrical System Section 4 – Troubleshooting Information
10. Loose or broken wire #03A to circuit breaker
CB1 or circuit breaker is open
Check continuity to circuit breaker. Test circuit
breaker CB1. Replace if defective.
11. Loose or broken wire #05 to base Emergency
Stop switch S28.
Check continuity. Replace if defective.
12. Open or defective Base Emergency Stop switch
S28.
Close switch. Check continuity between wire #05
and wire #05A on switch.
Replace if defective.
13. Loose or broken wire #05A from Base
Emergency Stop switch S28 to Base Key switch
S10
Check continuity. Replace if defective.
14. Open or defective Base Key switch S10.
Select function with switch.
Check continuity between wire #05A and wire
#08C on switch. (Base or Platform selected)
Check continuity between wire #05A and wire #07
on switch. (Platform selected)
Check continuity between wire #05A and wire #10
on switch. (Base selected)
Replace switch if no continuity during correct
switch function.
15. Loose or broken wire #08C from Base Key switch
S10 to Control module CM1 pin #P3-1.
Check continuity. Test for 24V supply voltage
between wire #08C and wire #00.
Use HMI Diagnostic menu to make sure input P3-1
signal is present.
Replace if defective.
16. Loose or broken wire #07 from Base Key switch
S10 to platform Emergency Stop switch S4.
Check continuity. Replace if defective.
17. Open or defective platform Emergency Stop
switch S4.
Close switch. Check continuity between wire #07
and wire #08 on switch.
Replace if defective.
18. Loose or broken wire #08 from platform
Emergency Stop switch S4 to Control module
CM1 pin #P3-2.
Check continuity. Test for 24V supply voltage
between wire #08 and wire #00.
Use HMI Diagnostic menu to make sure Input P3-2
signal is present.
Replace if defective.
19. Loose or broken B- cable wire #00 from batteries
to B- lug on Control module CM1.
Check continuity. Replace if defective.
20. External or internal fault detected by Control
Module CM1.
Check Control Module display screen. Use
Diagnostic Menu to see switch and sensor status.
Correct trouble code as displayed. Replace module
if defective.