44 No Right Steer; 45 Direction Sensing Inoperative - Skyjack SJ30AJE Service Manual

Electrical System

4.2-44 No Right Steer

1. Loose or broken wire #23 from drive joystick A1
to plug A pin #9 in platform control console.
2. Loose or broken wire #23 in boom cable A or its
connectors.
3. Loose or broken wire #23 from base plug A pin
#9 to motor control harness A.
4. Loose or broken wire #23 from motor control
harness A pin #14 to right motor controller pin
#RM16.
5. Loose or broken wire #223 from right motor
controller pin #RM11 to motor control harness A
pin #16.
6. Loose or broken wire #223 from motor control
harness A to main manifold harness.
7. Loose or broken wire #7A from base terminal
block to main manifold harness.
8. Loose or broken wire #223 or #7A from main
manifold harness to right steer valve 4H-223.
9. Defective right steer valve coil 4H-223.

4.2-45 Direction Sensing Inoperative

1. Loose or broken wire #09 from base terminal
block to limit switch LS1.
2. Open or defective limit switch LS1.
3. Loose or broken wire #17 from limit switch LS1
to base terminal block.
4. Loose or broken wire #17 from base terminal
block to motor control harness.
5. Loose or broken wire #17 from motor control
harness pin #9 to right motor controller pin
#RM31. Turret position for direction sensor. 12
volt input from limit switch LS1 on wire 17.
0 volts= Platform over drive axle.
12 volts= Platform over steer axle.
SJ30AJE, SJ30ARJE
Section 4 – Troubleshooting Information
Check continuity. Replace if defective.
Check for continuity between pins #9 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity and resistance through coil.
Replace if defective.
Check continuity. Replace if defective.
Adjust limit switch if required. Check continuity
through switch. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check continuity. Replace if defective.
196274AF
119