172
229042ABA SJ46 AJ+, SJ46 AJ, SJ51 AJ
Section 4 – Troubleshooting Information Electrical System - CE & AS
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.
4.3-15 No Drive and Steer
NOTE
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. (CE only)
Check continuity. Replace if defective.
2. Loose or broken wire #162A in Cable B or its
connectors. (CE only)
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.
(CE only)
Check continuity. Replace if defective.
NOTE
For further CE troubleshooting refer to Load Sensing System.
4. Loose or broken wire #04 from platform terminal
block to drive joystick A2.
Check continuity. Replace if defective.
5. Loose or broken wire #02 from platform terminal
block to drive joystick A2.
Check continuity. Replace if defective.
No Forward Drive
1. No output on “D” when forward is selected on
drive joystick A2.
See drive joystick test procedure in section 5.
2. Loose or broken wire ”D-signal” from drive
joystick A2 to valve driver pin #27.
Check continuity. Replace if defective.
3. No output from valve driver pin #34 to wire #16. Check pin #34 for minimum 2 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
4. Loose or broken wire #16 from valve driver pin
#34 to plug B pin #5 in platform control console.
Check continuity. Replace if defective.
5. Loose or broken wire #5 in cable B or its
connectors.
Check for continuity between pins #5 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
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