Skyjack SJ63 AJ+ Service Manual

142
SJ63 AJ+, SJ63 AJ229043AAA
Section 4 – Troubleshooting Information Electrical System - CE & AS
12. Loose or broken wire #162A from base terminal
block to relay 21CR.
Check continuity. Replace if defective.
NOTE
For further CE/AS troubleshooting refer to Load Sensing System.
13. Defective relay 21CR. Check relay. Replace if defective.
14. Loose or broken wire #21A from relay 21CR to
main harness plug pin #3.
Check continuity. Replace if defective.
15. Loose or broken wire #21A from main harness
plug pin #3 to dump valve 2H-21A.
Check continuity. Replace if defective.
16. Loose or broken wire #02 from dump valve
2H-21A to main harness plug.
Check continuity. Replace if defective.
17. Defective dump valve coil 2H-21A. Check continuity and resistance through coil.
Replace if defective.
4.3-13 No Main Boom Down, Riser Down or Turret Rotate from Base Control Console
1. Loose or broken wire #10A from base terminal
block 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 #10C from resistor R1 to
turret rotate switch S13, boom down switch S12
and riser down switch S25.
Check continuity. Replace if defective.
4.3-14 No Boom Up from the Base Control Console
1. Loose or broken wire #10A from level switch S15
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 main harness plug pin #2.
Check continuity. Replace if defective.
5. Loose or broken wire #14 from main harness
plug pin #2 to boom up valve 5H-14.
Check continuity. Replace if defective.
6. Loose or broken wire #02 from main harness
plug to boom up valve 5H-14.
Check continuity. Replace if defective.
7. Defective boom up coil 5H-14. Check continuity and resistance through coil.
Replace if defective.
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Skyjack SJ63 AJ+ Specifications

General

Brand	Skyjack
Model	SJ63 AJ+
Category	Boom Lifts
Language	English