Skyjack SJ46 AJ+ Service Manual

148
229042ABA SJ46 AJ+, SJ46 AJ, SJ51 AJ
Section 4 – Troubleshooting Information Electrical System - CE & AS
NOTE
For further CE troubleshooting refer to Load Sensing System.
14. Defective relay 21CR. Check relay. Replace if defective.
15. Loose or broken wire #21A from relay 21CR to
main harness plug pin #3.
Check continuity. Replace if defective.
16. Loose or broken wire #21A from main harness
plug pin #3 to dump valve 2H-21A.
Check continuity. Replace if defective.
17. Loose or broken wire #02 from dump valve
2H-21A to main harness plug.
Check continuity. Replace if defective.
18. Defective dump valve coil 2H-21A. Check continuity and resistance through coil.
Replace if defective.
4.3-7 No Movement from Base Control Console
No Main Boom Down, Riser Down or Turret Rotate
1. Loose or broken wire #10A from ignition/ pump
switch S5 to resistor R1.
Check continuity. Replace if defective.
2. Open resistor R1. Check resistor for 6 ohms. If no resistance found,
replace resistor.
3. Loose or broken wire #10B from resistor R1 to
turret rotate switch S13 and boom down switch
S12.
Check continuity. Replace if defective.
No Boom Up
1. Loose or broken wire #10A from ignition/ pump
switch S5 to boom switch S12.
Check continuity. Replace if defective.
2. Defective boom switch S12. Check continuity through switch while activating
up function between wires #10A and #14. Replace
switch if no continuity.
3. Loose or broken wire #14 from boom switch S12
to base terminal block.
Check continuity. Replace if defective.
4. Loose or broken wire #14 from base terminal
block to turret harness plug pin #4.
Check continuity. Replace if defective.
5. Loose or broken wire #14 from turret harness
plug pin #4 to boom up valve 4H-14.
Check continuity. Replace if defective.
6. Loose or broken wire #02 from turret harness
plug to boom up valve 4H-14.
Check continuity. Replace if defective.
7. Defective boom up coil 4H-14. Check continuity and resistance through coil.
Replace if defective.
To order go to Discount-Equipment.com

Skyjack SJ46 AJ+ Specifications

General

Brand	Skyjack
Model	SJ46 AJ+
Category	Boom Lifts
Language	English