Skyjack SJ63 AJ+ - 50 Differential Lock Engages Momentarily but will Not Stay Engaged; 51 No Drive and Steer

167
SJ63 AJ+, SJ63 AJ 229043AAA
Electrical System - CE & AS Section 4 – Troubleshooting Information
4.3-50 Differential Lock Engages Momentarily but will not stay Engaged
NOTE
Differential Lock will engage without light being illuminated. Check bulb.
1. Loose or broken wire #26A at diode D26A. Check continuity. Replace if defective.
2. Open or defective diode D26A. Check diode. Replace if defective.
3. Loose or broken wire #26B from diode D26A to
relay 165CR.
Check continuity. Replace if defective.
4. Loose or broken wire #165 from differential lock
switch S28 to relay 165CR. (2 places)
Check for 12 volts on wire #165 (2 places) while
activating differential lock at relay 165CR.
5. Defective relay 165CR. Check relay. Replace if defective.
6. Loose or broken wire #02 from platform terminal
block to differential lock switch S28.
Check continuity. Replace if defective.
7. Loose or broken wire #02A from differential lock
switch S28 to relay 165CR.
Check continuity. Replace if defective.
8. Loose or broken wire #08 from platform terminal
block to diode D08-1.
Check continuity. Replace if defective.
9. Open or defective diode D08-1. Check diode. Replace if defective.
10. Loose or broken wire #26B from diode D08-1 to
relay 165CR.
Check continuity. Replace if defective.
4.3-51 No Drive and Steer
NOTE
The MEWP will not drive or steer if it is tilted and off limit switches.
1. Loose or broken wire #162A from base terminal
block to base plug B pin #24.
Check continuity. Replace if defective.
2. Loose or broken wire #162A in Cable B or its
connectors.
Check for continuity between pins #24 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
3. Loose or broken wire #162A from plug B pin #24
in platform control console to drive joystick A2.
Check continuity. Replace if defective.
NOTE
For further CE/AS troubleshooting refer to Load Sensing System.
4. Loose or broken wire #02 from platform terminal
block to drive joystick A2.
Check continuity. Replace if defective.
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