Skyjack SJ46 AJ+ Service Manual

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229042ABASJ46 AJ+, SJ46 AJ, SJ51 AJ
Electrical System - CE & AS Section 4 – Troubleshooting Information
3. Loose or broken wire #20A from platform leveling
switch S19 to valve driver pin #33.
Check continuity. Replace if defective.
4. 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.
5. Loose or broken wire #40 from platform leveling
switch S19 to plug B pin #10 in platform control
console.
Check continuity. Replace if defective.
6. Loose or broken wire #40 in boom cable B or its
connectors.
Check for continuity between pins #10 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
7. Loose or broken wire #40 from base connector
plug B pin #10 to base terminal block.
Check continuity. Replace if defective.
8. Loose or broken wire #40 from base terminal
block to main harness plug pin #15.
Check continuity. Replace if defective.
9. Loose or broken wire #40 from main harness
plug pin #15 to level down valve 4H-40.
Check continuity. Replace if defective.
10. Loose or broken wire #02 from main harness
plug to level down valve 4H-40.
Check continuity. Replace if defective.
11. Defective level down valve coil 4H-40. Check continuity and resistance through coil.
Replace if defective.
4.3-9 Throttle Inoperative, Mid and High - Deutz D2.9L
1. Loose or broken wire #90 from base terminal
block to connector J2 pin #5.
Check continuity. Replace if defective.
2. Loose or broken wire #90 from connector P2 pin
#5 94 pin ECU connector pin 80.
Check continuity. Replace if defective.
3. Loose or broken wire #99 from base terminal
block to connector J2 pin 4
Check continuity. Replace if defective.
4. Loose or broken wire #99 from connector P2 pin
4 to 94 pin ECU connector pin 74
Check continuity. Replace if defective.
5. Resistor R4 open or poor connection at base
terminal block.
Measure resistance (1KΩ) between 99 and 99A.
Check connections. Replace if defective.
6. Resistor R5 open or poor connection at base
terminal block.
Measure resistance (3.3KΩ) between 99A and 99B.
Check connections. Replace if defective.
7. Resistor R6 open or poor connection at base
terminal block.
Measure resistance (3.9KΩ) between 99B and 90.
Check connections. Replace if defective.
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Skyjack SJ46 AJ+ Specifications

General

Brand	Skyjack
Model	SJ46 AJ+
Category	Boom Lifts
Language	English