Skyjack SJ61T Service Manual

Page 134 December 2007
Telescopic Boom Series
Models SJ61T & SJ66T
194312
Section 4 - Troubleshooting InformationService and Maintenance
4.1-44 High Throttle Inoperative
1. Loose or broken wire #08 from platform terminal block to throttle switch S10.
- Check continuity. Replace if defective.
2. Defective throttle switch S10.
- Check continuity through switch while activating high throttle function between wires #08 and
#78. If no continuity found replace switch.
3. Loose or broken wire #78 from throttle switch S10 to plug B pin #17 in platform control console.
- Check continuity. Replace if defective.
4. Loose or broken wire #78 in Cable B or its connectors.
- Check for continuity between pins #17 on cable B. Check for loose or corroded connections
on cable connectors. Replace if wire is defective.
(Deutz TD2.9L Diesel Only)
5. Loose or broken wire #78 from base plug B pin #19 to relay 78CR.
- Check continuity. Replace if defective.
6. Loose or broken wire #02 from base terminal block to relay 78CR.
- Check continuity. Replace if defective.
7. Loose or broken wire #90 from relay 78CR to base terminal block.
- Check continuity. Replace if defective.
8. Loose or broken wire #99A from relay 78CR to base terminal block.
- Check continuity. Replace if defective.
9. Defective relay 78CR.
- Check relay. Replace if defective.
(Deutz D2011 Diesel Only)
10. Loose or broken wire #78 from base plug B pin #17 to relay 78CR.
- Check continuity. Replace if defective.
11. Loose or broken wire #02 from base terminal block to relay 78CR.
- Check continuity. Replace if defective.
12. Loose or broken wire #90 from relay 78CR to ECU connector pin #21.
- Check continuity. Replace if defective.
13. Loose or broken wire #103 from relay 78CR to base terminal block.
- Check continuity. Replace if defective.
14. Loose or broken wire #103 from base terminal block to ECU connector pin #17.
- Check continuity. Replace if defective.
15. Defective relay 78CR.
- Check relay. Replace if defective.
(GM Engine Only)
16. Loose or broken wire #78 from base plug B pin #17 to engine harness plug.
- Check continuity. Replace if defective.
17. Loose or broken wire #78 from engine harness plug to GM engine connector 2.
- Check continuity. Replace if defective.
18. Loose or broken gray/orange wire from GM engine connector 2 to ECU connector pin #52.
- Check continuity. Replace if defective.
19. Loose or broken light blue/dark blue wire from ECU connector pin #6 to throttle actuator RA1.
- Check continuity. Replace if defective.
20. Defective throttle actuator RA1.
- Check actuator. Replace if defective.

Skyjack SJ61T Specifications

General

Brand	Skyjack
Model	SJ61T
Category	Lifting Systems
Language	English