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Section 4 – Troubleshooting Information
6. No output on pin #22 of the valve driver to wire
#14.
7. Loose or broken wire #14 from valve driver pin
#22 to plug A pin #7 in platform control console.
8. Loose or broken wire #14 in boom cable A or its
connectors.
9. Loose or broken wire #14 from base connector
plug A pin #7 to base terminal block.
10. Loose or broken wire #14 from base terminal
block to turret harness plug pin #4.
11. Loose or broken wire #14 from turret harness
plug pin #4 to boom up valve 4H-14.
12. Loose or broken wire #02 from turret harness
plug to boom up valve 4H-14.
13. Defective boom up valve coil 4H-14.
No Boom Down
NOTE
Boom Down may be disabled by the dual load zone system and/or overload system if equipped. Please first
ensure the boom is fully retracted and there are no faults in the overload system.
1. Loose or broken wire #04 from platform terminal
block to joystick controller A1.
2. Loose or broken wire #02 from platform terminal
block to joystick controller A1.
3. No output on y-axis of joystick controller A1.
4. Loose or broken wire "Y" from joystick controller
A1 to valve driver pin #29.
5. No output on pin #5 of the valve driver to wire
#20B.
6. No output on pin #8 of the valve driver to wire
#13.
7. Loose or broken wire #13 from valve driver pin
#8 to plug A pin #6 in platform control console.
8. Loose or broken wire #13 in boom cable A or its
connectors.
229040ABA
130
Check pin #22 for minimum 3.5 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
Check continuity. Replace if defective.
Check for continuity between pins #7 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity and resistance through coil.
Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Refer to joystick test procedure in section 5.
Check continuity. Replace if defective.
Check pin #5 for 12 volts. If no voltage present with
foot on footswitch check section 5 for OCM pin
voltage reference.
Check pin #8 for minimum 3.5 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
Check continuity. Replace if defective.
Check for continuity between pins #6 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
Electrical System
SJ82 T, SJ86 T
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