90
SJ30AJE, SJ30ARJE196274AF
Section 4 – Troubleshooting Information Electrical System
8. Loose or broken wire #31 from main manifold
harness plug pin #6 to riser up valve 2H-31.
Check continuity. Replace if defective.
9. Loose or broken wire #02 from main manifold
harness plug to riser up valve 2H-31.
Check continuity. Replace if defective.
10. Defective boom up coil 2H-31. Check continuity and resistance through coil.
Replace if defective.
4.2-8 No Riser Down from Base Control Console
1. Loose or broken wire #10A from enable switch
S21 to riser switch S18.
Check continuity. Replace if defective.
2. Defective riser switch S18. Check continuity through switch while activating
down function between wires #10A and #30. If no
continuity found, replace switch.
3. Loose or broken wire #60A or #02 from base
terminal block to relay 60ACR.
Check continuity. Replace if defective.
4. Loose or broken wire #30A from riser switch S18
to relay 60ACR.
Check continuity. Replace if defective.
5. Loose or broken wire #30 from relay 60ACR to
base terminal block.
Check continuity. Replace if defective.
6. Defective relay 60ACR. Check relay. Replace if defective.
7. Loose or broken wire #30 from base terminal
block to relay 162CCR.
Check continuity. Replace if defective.
8. Loose or broken wire #162C from diodes D162-1
and D59-2 to relay 162CCR.
Check continuity. Replace if defective.
9. Loose or broken wire #02 from base terminal
block to relay 162CCR.
Check continuity. Replace if defective.
10. Defective relay 162CCR. Check relay. Replace if defective.
11. Loose or broken wire #02 from base terminal
block to riser down harness.
Check continuity. Replace if defective.
12. Loose or broken wire #30B from relay 162CCR to
riser down harness.
Check continuity. Replace if defective.
13. Loose or broken wire #30B or #02 from riser
down harness to riser down valve 2H-30B.
Check continuity. Replace if defective.
14. Defective riser down coil 2H-30B. Check continuity and resistance through coil.
Replace if defective.
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