Skyjack SJ30ARJE User Manual

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SJ30AJE, SJ30ARJE 196274AF
Electrical System Section 4 – Troubleshooting Information
4.2-32 No Jib Up from Platform Control Console
1. Loose or broken L wire from speed controller to
resistor R9 in platform control console.
Check continuity. Replace if defective.
2. Open or defective resistor R9. Check resistor. Replace if defective.
3. Loose or broken wire #34B from resistor R9 to
riser switch S9.
Check continuity. Replace if defective.
4. Defective riser switch S9. Check continuity through switch while activating
the function between wires #34B and #34A.
5. Loose or broken wire #34A from riser switch S9
to valve driver pin #14.
Check continuity. Replace if defective.
6. Voltage out of range at valve driver pin #14. Check voltage while operating jib up. Voltage
should be 2.41 volts. Refer to toggle switch voltage
reference worksheet in section 5 if out of range.
7. No output on pin #23 of the valve driver to wire
#20A.
Check pin #23 for proportional voltage. This
voltage varies with the A3 boom speed control. If
no voltage present with foot on footswitch check
section 5 for OCM pin voltage reference.
8. No output on pin #5 of the valve driver to wire
#35 at the platform terminal block.
Check pin #5 for 12 volts. If no voltage present with
foot on footswitch check section 5 for OCM pin
voltage reference.
9. Loose or broken wire #35 or #02 from platform
terminal block to jib up valve 4H-35.
Check continuity. Replace if defective.
10. Defective jib up valve coil 4H-35. Check continuity and resistance through coil.
Replace if defective.
4.2-33 No Jib Down from Platform Control Console
1. Loose or broken L wire from speed controller to
resistor R9 in platform control console.
Check continuity. Replace if defective.
2. Open or defective resistor R9. Check resistor. Replace if defective.
3. Loose or broken wire #34B from resistor R9 to
riser switch S9.
Check continuity. Replace if defective.
4. Defective riser switch S9. Check continuity through switch while activating
the function between wires #34B and #34A.
5. Loose or broken wire #34A from riser switch S9
to valve driver pin #14.
Check continuity. Replace if defective.

Skyjack SJ30ARJE Specifications

General

Brand	Skyjack
Model	SJ30ARJE
Category	Boom Lifts
Language	English