Skyjack SJ82 T Service Manual

136
SJ82 T, SJ86 T
229040ABA
Section 4 – Troubleshooting Information Electrical System
No Jib Down
1. Defective jib switch S21.
2. Loose or broken wire #34 from jib switch S21 to
platform terminal block.
Check continuity. Replace if defective.
3. Loose or broken jumper wire #34 on platform
terminal block.
Check continuity. Replace if defective.
4. Open or defective diode D34 in platform terminal
block.
Check diode. Replace if defective.
5. Loose or broken wire #34A from platform
terminal block to valve driver pin #33.
Check continuity. Replace if defective.
6. Loose or broken wire #34 or #02 from platform
terminal block to jib down valve 4H-34.
Check continuity. Replace if defective.
7. Defective jib down valve coil 4H-34. Check continuity and resistance through coil.
Replace if defective.
4.2-10 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 SJ82 T Specifications

General

Brand	Skyjack
Model	SJ82 T
Category	Boom Lifts
Language	English