Skyjack SJ61T Service Manual

Telescopic Boom Series
Models SJ61T & SJ66T
194312
December 2007 Page 119
Section 4 - Troubleshooting Information Service and Maintenance
4.1-12 Glow Plug Circuit Inoperative
1. Defective glow plug fuse FU1 50 amp.
- Check fuse. Replace if defective.
2. Loose or broken wire #03 from start solenoid 57CCR to fuse holder FU1.
- Check continuity. Replace if defective.
3. Loose or broken wire #11A from fuse holder FU1 to relay 54ACR.
- Check continuity. Replace if defective.
4. Loose or broken wire #11B from relay 54ACR to glow plugs.
- Check continuity. Replace if defective.
5. Loose or broken wire #54A from base terminal strip to relay 54ACR.
- Check continuity. Replace if defective.
6. Loose or broken wire #11 from base terminal block to relay 54ACR.
- Check continuity. Replace if defective.
7. Defective relay 54ACR.
- Check relay. Replace if defective.
8. Defective glow plugs.
- Check glow plugs. Replace if defective.
NOTE
For other glow plug related problems, consult engine manufacturer’s
manual.
4.1-13 All Controls Inoperative from Base Console
1. Loose or broken wire #10 from base emergency stop switch S3 to ignition/ pump switch S5.
- Check continuity. Replace if defective.
2. Defective ignition/ pump switch S5.
- Check continuity through switch when activated. Replace if defective.
3. Loose or broken wire #10A from ignition/ pump switch S5 to basket rotation switch S16.
- Check continuity. Replace if defective.
4. Loose or broken wire #10A from jib switch S17 to base terminal block.
- Check continuity. Replace if defective.
5. Loose or broken wire #10A from base terminal block to diode D10A.
- Check continuity. Replace if defective.
6. Open or defective diode D10A.
- Check diode. Replace if defective.
7. Loose or broken wire #20 from diode D10A to base terminal block.
- Check continuity. Replace if defective.
8. Missing or broken jumper JMPR3 on base terminal block between wires #20 and #21.
- Check for jumper. Replace if missing or broken.
NOTE
Jumper is removed if equipped with generator option.
9. Loose or broken wire #21 from base terminal block to relay 21CR.
- Check continuity. Replace if defective.
10. Loose or broken wire #02 from base terminal block to relay 21CR.
- Check continuity. Replace if defective.
11. Loose or broken wire #09 from base terminal block to relay 21CR.
- Check continuity. Replace if defective.
12. Defective relay 21CR.
- Check relay. Replace if defective.
13. Loose or broken wire #21A from relay 21CR to turret harness plug pin #5.
- Check continuity. Replace if defective.

Skyjack SJ61T Specifications

General

Brand	Skyjack
Model	SJ61T
Category	Lifting Systems
Language	English