Skyjack SJ61T Service Manual

Page 118 December 2007
Telescopic Boom Series
Models SJ61T & SJ66T
194312
Section 4 - Troubleshooting InformationService and Maintenance
23. Loose or broken tan/black wire from ECU connector pin #84 to fuel pump relay 56CR.
- Check continuity. Replace if defective.
24. Defective fuel pump relay 56CR.
- Check relay. Replace if defective.
25. Loose or broken pink/yellow wire from fuel pump relay 56CR to fuse F11.
- Check continuity. Replace if defective.
26. Defective fuse F11.
- Check fuse. Replace if defective.
27. Loose or broken pink/yellow wire from fuse F11 to fuel pump FP.
- Check continuity. Replace if defective.
28. Defective fuel pump FP.
- Check fuel pump by putting 12 volts and a ground to it. Replace if defective.
29. Loose or broken wire #3002 from fuel pump FP to GM engine connector 1.
- Check continuity. Replace if defective.
30. Loose or broken black/red wire from GM engine connector to ECU connector pin #86.
- Check continuity. Replace if defective.
(Propane Only)
NOTE
The fuel select switch is defaulted to gasoline. The engine will run on
gasoline if propane is selected from the switch and either the switch
is bad or a wire is loose or broken from the switch. This is providing
there is nothing wrong on the gasoline side of the system. Disconnect
fuel pump to test propane side.
31. Loose or broken wire #60 from platform terminal block to fuel select switch S26.
- Check continuity. Replace if defective.
32. Defective fuel select switch S26.
- Check switch. Replace if defective.
33. Loose or broken wire #11 from fuel select switch S26 to plug B pin #15 in platform control console.
- Check continuity. Replace if defective.
34. Loose or broken wire #11 in boom cable B or its connectors.
- Check continuity between pins #15 on cable B. Check for loose or corroded connections on
cable connectors. Replace if wire is defective.
35. Loose or broken wire #11 from plug B pin #15 to engine harness plug.
- Check continuity. Replace if defective.
36. Loose or broken wire #11 from engine harness plug to GM engine connector 1.
- Check continuity. Replace if defective.
37. Loose or broken tan/brown wire from GM engine connector 1 to ECU connector pin #42.
- Check continuity. Replace if defective.
38. Loose or broken pink/tan wire from fuse F7 to propane lock off 2P-56.
- Check continuity. Replace if defective.
39. Loose or broken white/black wire from ECU connector pin #75 to propane lock off 2P-56.
- Check continuity. Replace if defective.
40. Defective propane lock off 2P-56.
- Check lock off. Replace if defective.
41. Loose or broken pink/dark green wire from fuse F10 to fuse F9.
- Check continuity. Replace if defective.
42. Defective fuse F9.
- Check fuse. Replace if defective.
43. Loose or broken red/light blue wire from fuse F9 to propane regulator PRV1.
- Check continuity. Replace if defective.
44. Loose or broken black wire from engine ground to propane regulator PRV1.
- Check continuity. Replace if defective.

Skyjack SJ61T Specifications

General

Brand	Skyjack
Model	SJ61T
Category	Lifting Systems
Language	English