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Electrical System
No Turret Rotate Right from Base Console:
1. Loose or broken wire #10C from resistor R1 to
resistor R2.
2. Defective resistor R2.
3. Loose or broken wire #10D from resistor R3 to
turret rotate right switch S13.
4. Defective turret rotate right switch S13.
5. Loose or broken wire #33 from turret rotate right
switch S13 to base terminal block.
6. Loose or broken wire #33 from base terminal
block to turret harness plug pin #10.
7. Loose or broken wire #33 from turret harness
plug pin #10 to turret rotate right valve 4H-33.
8. Loose or broken wire #02 from turret harness
plug to turret rotate right valve 4H-33.
9. Defective turret rotate right coil 4H-32.
No Turret Rotate Right from Platform Console:
1. Loose or broken wire #04 from platform terminal
block to joystick controller A1.
2. Loose or broken wire #02 from platform terminal
block to joystick controller A1.
3. No output on X-axis of joystick controller A1.
4. Loose or broken wire "X" from joystick controller
to J3 pin #15 of valve driver.
5. No output on J3 pin #24 of the valve driver to
wire #20B.
6. No output on J2 pin #24 of the valve driver to
wire #32.
7. Loose or broken wire #33 from valve driver J2
pin #24 to plug A pin #15 in platform control
console.
8. Loose or broken wire #33 in boom cable A or its
connectors.
9. Loose or broken wire #33 from base connector
plug A pin #15 to base terminal block.
SJ85 AJ
Section 4 – Troubleshooting Information
Check continuity. Replace if defective.
Check resistor, replace if defective.
Check continuity. Replace if defective.
Check continuity through switch while activating
up function between wires #10D and #33. Replace
switch if no continuity.
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.
Check continuity. Replace if defective.
Refer to joystick test procedure in section 5.
Check continuity. Replace if defective.
Check for 12 volts. If no voltage present with foot
on footswitch check section 5 for OCM pin voltage
reference.
Check for a minimum 3.5 volts. If no voltage
present with foot on footswitch check section 5 for
OCM pin voltage reference.
Check continuity. Replace if defective.
Check for continuity between pins #15 on cable A.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
Check continuity. Replace if defective.
229044ADA
111
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