Skyjack SJ63 AJ+ Service Manual

170
SJ63 AJ+, SJ63 AJ229043AAA
Section 4 – Troubleshooting Information Electrical System - CE & AS
13. Loose or broken wire #59 from platform terminal
block to valve driver pin #31.
Check continuity. Replace if defective.
14. Defective valve driver channel input for high drive
enable.
See section 5 for test procedure on valve driver.
15. Loose or broken wire #59 from platform terminal
block to torque switch S48.
Check continuity. Replace if defective.
16. Open or defective torque switch S48. Check continuity through switch while activating
low torque function between wires #59 and #45. If
no continuity found replace switch.
17. Loose or broken wire #45 from torque switch S48
to plug A pin #20 in platform control console.
Check continuity. Replace if defective.
18. Loose or broken wire #45 in cable A or its
connectors.
Check for continuity between pins #20 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
19. Loose or broken wire #45 from plug A pin #20 to
relay 45CR1.
Check continuity. Replace if defective.
20. Loose or broken wire #09 from base terminal
block to relay 45CR1.
Check continuity. Replace if defective.
21. Loose or broken wire #02 from relay 45CR1 to
base terminal block.
Check continuity. Replace if defective.
22. Defective relay 45CR1. Check relay. Replace if defective.
23. Loose or broken wire #45A from relay 45CR1 to
main harness plug pin #17.
Check continuity. Replace if defective.
24. Loose or broken wire #45A or #02 from main
harness plug to 2 speed valve 3H-45A.
Check continuity. Replace if defective.
25. Defective 2 speed valve 3H-45A. Check continuity and resistance through coil.
Replace if defective.
4.3-55 No Elevated Drive
NOTE
The MEWP must be level to drive elevated.
1. Loose or broken wire #09 or #02 from base
terminal block to level sensor TS1.
Check continuity. Replace if defective.
2. Misadjusted, no output or defective level sensor
TS1.
Adjust level sensor if required. Check for 12 volts
on wire #28. If no voltage present with level sensor
adjusted or if defective, replace level sensor.
3. Loose or broken wire #28 from level sensor TS1
to plug B pin #7.
Check continuity. Replace if defective.
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Skyjack SJ63 AJ+ Specifications

General

Brand	Skyjack
Model	SJ63 AJ+
Category	Boom Lifts
Language	English