KYJACK, Page 4
JIII Conventional eries
143911
ection 4 - Troubleshooting Information
ervice and Maintenance
Electrical ystem
4.1-1
All Controls Inoperative
1. Battery Charger plugged into external power source.
Disconnect charger cord.
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2. Batteries disconnected.
Connect batteries.
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3. Dirty or loose battery terminals.
Clean and tighten connections.
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4. Battery charge low.
Check each cell with hydrometer. Reading should be 1.275 (fully charged). Recharge if low
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reading. Replace if reading difference between cells is 0.050.
5. Main battery cables open or defective.
Check continuity. Replace if defective.
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6. Fuse F1 defective.
Replace fuse.
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7. Main battery disconnect switch S1 open or defective.
Close switch. Check continuity. Replace if defective.
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8. Loose or broken wire #3 from motor contactor C1 to circuit breaker CB2.
Check continuity. Replace if defective.
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9. Loose or broken wire #3A from circuit breaker CB2 to charger relay L1CR.
Check continuity. Replace if defective.
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10. Defective battery charger relay L1CR.
Check relay. Replace if defective.
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11. Defective or tripped circuit breaker CB2.
Reset circuit breaker. Replace if defective.
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12. Loose or broken wire #5 from charger relay L1CR to base terminal block B-1.
Check continuity. Replace if defective.
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13. Loose or broken wire #5 from base terminal block B-1 to base emergency stop switch S28.
Check continuity. Replace if defective.
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14. Open or defective base emergency stop switch S28.
Close switch. Check switch. Replace if defective.
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15. Loose or broken wire #5A from base emergency stop switch S28 to base key switch S10.
Check continuity. Replace if defective.
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16. Open or defective base key switch S10.
Select function with switch. Check switch. Replace if defective.
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17. Loose or broken wire #00 from pump motor DCM1 to circuit breaker CB1.
Check continuity. Replace if defective.
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18. Defective or tripped circuit breaker CB1.
Reset circuit breaker. Replace if defective.
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19. Loose or broken wire #2 from circuit breaker CB1 to base terminal block B-1.
Check continuity. Replace if defective.
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20. Loose or broken wire #7A from base terminal block to CM1 control module pin P2-12.
(CE)
Check continuity. Replace if defective.
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21. Loose or broken wire #02 from base terminal block to CM1 control module pin P2-11.
(CE)
Check continuity. Replace if defective.
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4.1-2
All Controls Except for Down Function Inoperative
1. Loose or broken wire #19A
(AN I/C A)
or wire #19B
(CE)
from base terminal block B-1 to contactor
C1.
Check continuity. Replace if defective.
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