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Electrical System
5. Loose or broken wire #02 from turret harness
plug to left steer valve 4H-24
6. Defective left steer valve coil 4H-24
4.2-56 No Right Steer
1. Loose or broken wire #23P from drive joystick
A2 to platform control module connector J12 pin
#16
2. No output from base control module on
connector J3 pin #3
3. Loose or broken wire #23 from base control
module connector J3 pin 13 to turret harness
connector pin #6
4. Loose or broken wire #23 from turret harness
plug pin #6 to right steer valve 4H-23
5. Loose or broken wire #02 from turret harness
plug to right steer valve 4H-23
6. Defective right steer valve coil 4H-23
4.2-57 The Directon Sensing is 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 base control module connector J2 pin
#25
5. Defective base control module channel input for
direction sense enable
SJ45 AJ+
Section 4 – Troubleshooting Information
Check continuity. Replace if defective
Check continuity and resistance through coil.
Replace if defective
Check continuity. Replace if defective
Check pin #13 for 12 volts. If no voltage present
with foot on footswitch and activating steer function
check section 5 for OCM pin voltage reference
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
Replace if Defective
238274AAA
107
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