158
229042ABA SJ46 AJ+, SJ46 AJ, SJ51 AJ
Section 4 – Troubleshooting Information Electrical System - CE & AS
12. Loose or broken wire #02 from turret harness
plug to boom down valve 4H-13.
Check continuity. Replace if defective.
13. Defective boom down valve coil 4H-13. Check continuity and resistance through coil.
Replace if defective.
No Riser Up from Platform Control Console
1. Loose or broken wire #04 from platform terminal
block to joystick controller A3.
Check continuity. Replace if defective.
2. Loose or broken wire #02 from platform terminal
block to joystick controller A3.
Check continuity. Replace if defective.
3. No output on R signal from joystick controller A3. Refer to joystick test procedure in section 5.
4. Loose or broken wire “R” from joystick controller
A3 to valve driver pin #30.
Check continuity. Replace if defective.
5. No output on pin #5 of the valve driver to wire
#20.
Check pin #5 for 12 volts. If no voltage present with
foot on footswitch check section 5 for OCM pin
voltage reference.
6. No output on pin #9 of the valve driver to wire
#31.
Check pin #9 for minimum 3 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
7. Loose or broken wire #31 from valve driver pin
#9 to plug A pin #13 in platform control console.
Check continuity. Replace if defective.
8. Loose or broken wire #31 in boom cable A or its
connectors.
Check for continuity between pins #13 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
9. Loose or broken wire #31 from base connector
plug A pin #13 to base terminal block.
Check continuity. Replace if defective.
10. Loose or broken wire #31 from base terminal
block to main harness plug pin #8.
Check continuity. Replace if defective.
11. Loose or broken wire #31 from main harness
plug pin #8 to riser up valve 4H-31.
Check continuity. Replace if defective.
12. Loose or broken wire #02 from main harness
plug to riser up valve 4H-31.
Check continuity. Replace if defective.
13. Defective riser up valve coil 4H-31. Check continuity and resistance through coil.
Replace if defective
No Riser Down from Platform Control Console
1. Loose or broken wire #04 from platform terminal
block to joystick controller A3.
Check continuity. Replace if defective.
2. Loose or broken wire #02 from platform terminal
block to joystick controller A3.
Check continuity. Replace if defective.
3. No output on R signal from joystick controller A3. Refer to joystick test procedure in section 5.
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