Telescopic Boom Series
Models SJ61T & SJ66T
194312
December 2007 Page 121
Section 4 - Troubleshooting Information Service and Maintenance
6. Loose or broken wire #32 from base terminal block to turret harness plug pin #10.
- Check continuity. Replace if defective.
7. Loose or broken wire #32 from turret harness plug pin #10 to turret rotate left valve 4H-32.
- Check continuity. Replace if defective.
8. Loose or broken wire #02 from turret harness plug to turret rotate left valve 4H-32.
- Check continuity. Replace if defective.
9. Defective turret rotate left valve coil 4H-32.
- Check continuity and resistance through coil. Replace if defective.
4.1-17 No Turret Rotate Right from Base Control Console
1. Loose or broken wire #10A from ignition/ pump switch S5 to resistor R1.
- Check continuity. Replace if defective.
2. Open resistor R1.
- Check resistor for 6 ohms. If no resistance found, replace resistor.
3. Loose or broken wire #10B from resistor R1 to turret rotate switch S13.
- Check continuity. Replace if defective.
4. Defective turret rotate switch S13.
- Check continuity through switch while activating rotate right function between wires #10B and
#33. If no continuity found, replace switch.
5. Loose or broken wire #33 from turret rotate switch S13 to base terminal block.
- Check continuity. Replace if defective.
6. Loose or broken wire #33 from base terminal block to turret harness plug pin #11.
- Check continuity. Replace if defective.
7. Loose or broken wire #33 from turret harness plug pin #10 to turret rotate right valve 4H-33.
- Check continuity. Replace if defective.
8. Loose or broken wire #02 from turret harness plug to turret rotate right valve 4H-33.
- Check continuity. Replace if defective.
9. Defective turret rotate right valve coil 4H-33.
- Check continuity and resistance through coil. Replace if defective.
4.1-18 No Telescope Retract From Base Control Console
1. Loose or broken wire #10A from ignition/ pump switch S5 to telescope switch S14.
- Check continuity. Replace if defective.
2. Defective telescope switch S14.
- Check continuity through switch while activating retract function between wires #10A and #38.
If no continuity found, replace switch.
3. Loose or broken wire #38 from telescope switch S14 to base terminal block.
- Check continuity. Replace if defective.
4. Loose or broken wire #38 from base terminal block to turret harness plug pin #12.
- Check continuity. Replace if defective.
5. Loose or broken wire #38 from turret harness plug pin #12 to telescope retract valve 3H-38.
- Check continuity. Replace if defective.
6. Loose or broken wire #02 from turret harness plug to telescope retract valve 3H-38.
- Check continuity. Replace if defective.
7. Defective telescope retract valve coil 3H-38.
- Check continuity and resistance through coil. Replace if defective.
4.1-19 No Telescope Extend From Base Control Console
1. Loose or broken wire #10A from ignition/ pump switch S5 to telescope switch S14.
- Check continuity. Replace if defective.
2. Defective telescope switch S14.
- Check continuity through switch while activating extend function between wires #10A and #39.
If no continuity found, replace switch.
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