SKYJACK, Page 70
SJRT Compact Series
Engine Powered
TROUBLESHOOTING INFORMATION - ELECTRICAL SYSTEM
4.1-1. All Controls Inoperative
1. Battery disconnected or discharged.
- Reconnect battery. Recharge if discharged.
2. Loose or dirty battery cables.
- Clean and tighten battery cables.
3. Defective main fuse (F1) 300Amp.
- Check fuse. Replace if defective.
4. Open or defective main power disconnect switch (S1).
- Close switch. Replace if defective.
5. Loose or broken wire #03 from main power disconnect switch (S1) to circuit breaker (CB1).
- Check continuity. Replace if defective.
6. Tripped or defective circuit breaker (CB1).
- Reset breaker. Check for defective wiring. Replace breaker if defective.
7. Loose or broken wire #3A from breaker (CB1) to base terminal block (TB-1).
- Check continuity. Replace if defective.
8. Loose or broken wire #3A from base terminal block (TB-1) to base emergency stop switch (S6)
- Check continuity. Replace if defective.
9. Defective base emergency stop switch (S6).
- Check switch. Replace if defective.
10. Loose or broken wire #5 from base emergency stop switch (S6) to base terminal block (TB-1).
- Check continuity. Replace if defective.
11. Loose or broken wire #5 from base terminal block (TB-1) to emergency stop switch (S4).
- Check continuity. Replace if defective.
12. Defective emergency stop switch (S4).
- Check switch. Replace if defective.
13. Loose or broken wire #10 from emergency stop switch (S4) to base terminal block (TB-1).
- Check continuity. Replace if defective.
14. Loose or broken wire #10 from base terminal block (TB-1) to key switch (S10).
- Check continuity. Replace if defective.
15. Defective key switch (S10).
- Check switch. Replace if defective.
4.1-2. No Power To Platform
1. Open or defective key switch (S10).
- Check switch. Replace if defective.
2. Loose or broken wire #07 from key switch (S10) to base terminal block (TB-1).
- Check continuity. Replace if defective.
3. Loose or broken wire #07 from base terminal block (TB-1) to emergency stop switch (S4).
- Check continuity. Replace if defective.
4. Open or defective platform emergency stop switch (S4).
- Check switch. Replace if defective.
4.1-3. All Functions Inoperative From The Platform
1. Open or defective emergency stop switch (S4).
- Check switch. Replace if defective.
2. Loose or broken wire #08 from emergency stop switch (S4) to base terminal block (TB-1).
- Check continuity. Replace if defective.
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