Skyjack SJ61T Service Manual

Telescopic Boom Series
Models SJ61T & SJ66T
194312
December 2007 Page 133
Section 4 - Troubleshooting Information Service and Maintenance
4.1-43 Mid Throttle Inoperative
1. Loose or broken wire #08 from platform terminal block to throttle switch S10.
- Check continuity. Replace if defective.
2. Open or defective diode D08. (Generator option only)
- Check diode. Replace if defective.
3. Defective throttle switch S10.
- Check continuity through switch while activating mid throttle function between wires #08 and
#79. If no continuity found replace switch.
4. Loose or broken wire #79 from throttle switch S10 to plug B pin #20 in platform control console.
- Check continuity. Replace if defective.
5. Loose or broken wire #79 in Cable B or its connectors.
- Check for continuity between pins #20 on cable B. Check for loose or corroded connections
on cable connectors. Replace if wire is defective.
(Deutz TD2.9L Diesel Only)
6. Loose or broken wire #79 from base plug B pin #20 to relay 79CR.
- Check continuity. Replace if defective.
7. Loose or broken wire #02 from base terminal block to relay 79CR.
- Check continuity. Replace if defective.
8. Loose or broken wire #90 from relay 79CR to base terminal block.
- Check continuity. Replace if defective.
9. Loose or broken wire #99B from relay 79CR to base terminal block.
- Check continuity. Replace if defective.
10. 9. Defective relay 79CR.
- Check relay. Replace if defective.
(Deutz D2011 Diesel Only)
11. Loose or broken wire #79 from base plug B pin #18 to relay 79CR.
- Check continuity. Replace if defective.
12. Loose or broken wire #02 from base terminal block to relay 79CR.
- Check continuity. Replace if defective.
13. Loose or broken wire #99 from relay 79CR to ECU connector pin #18.
- Check continuity. Replace if defective.
14. Loose or broken wire #103 from relay 79CR to base terminal block.
- Check continuity. Replace if defective.
15. 10. Loose or broken wire #103 from base terminal block to ECU connector pin #17.
- Check continuity. Replace if defective.
16. 11. Defective relay 79CR.
- Check relay. Replace if defective.
(GM Engine Only)
17. Loose or broken wire #79 from base plug B pin #18 to engine harness plug.
- Check continuity. Replace if defective
18. Loose or broken wire #79 from engine harness plug to GM engine connector 2.
- Check continuity. Replace if defective.
19. Loose or broken gray/dark blue wire from GM engine connector to ECU connector pin #51.
- Check continuity. Replace if defective.
20. Loose or broken purple/light blue wire from ECU connector pin #5 to throttle actuator RA1.
- Check continuity. Replace if defective.
21. Defective throttle actuator RA1.
- Check actuator. Replace if defective.

Skyjack SJ61T Specifications

General

Brand	Skyjack
Model	SJ61T
Category	Lifting Systems
Language	English