No Down Or Reverse Only Function From Platform Controls; No Up Or Forward Only Function From Platform Control Console; No Up Function From Platform Or Base Control Console - Skyjack SJ 3215 Service Manual

Section 4 - Troubleshooting Information
Electrical System (Continued)
7. Loose or broken wire #19B from tilt relay 28CR1 to base terminal block.
- Check continuity. Replace if defective.
8. Loose or broken wire #19B from base terminal block to motor contactor C1.
- Check continuity. Replace if defective.
4.1-6

No Down or Reverse Only Function from Platform Controls

1. Loose or broken wire "A" from proportional controller S7 to lift/drive switch S3.
- Check continuity. Replace if defective.
2. Lift/Drive switch S3 defective.
- Check switch. Replace if defective.
3. Defective PWM card on joystick S7.
- Check joystick card. Replace if defective.
4. Loose or broken wire #13 down or #15 reverse from lift/drive switch S3 to base terminal block.
- Check continuity. Replace if defective.
4.1-7

No Up or Forward Only Function from Platform Control Console

1. Loose or broken wire "B" from proportional controller S7 to lift/drive switch S3.
- Check continuity. Replace if defective.
2. Lift/Drive switch S3 defective.
- Check switch. Replace if defective.
3. Defective PWM card on joystick S7.
- Check joystick card. Replace if defective.
4. Loose or broken wire #14 up or #16 forward from lift/drive switch S3 to base terminal block.
- Check continuity. Replace if defective.
4.1-8

No Up Function from Platform or Base Control Console

1. Loose or broken wire #14 from base terminal block to up valve coil 3H-14.
- Check continuity. Replace if defective.
2. Defective up valve coil 3H-14.
- Check continuity through coil. Replace if defective.
3. Open diode D14-1.
- Check diode. Replace if defective.
4. Open diode D14 (ANSI/CSA) or D14-2 (CE).
- Check diode. Replace if defective.
5. Machine not level. (Above high speed limit switch)
- Use on level surface.
6. Loose or broken wire #19 from base terminal block to tilt switch TS1 (ANSI/CSA).
- Check continuity. Replace if defective.
7. Defective tilt switch TS1 (ANSI/CSA).
- Test tilt switch. Replace if defective.
8. Loose or broken wire #28 from tilt switch TS1 to tilt relay 28CR (ANSI/CSA).
- Check continuity. Replace if defective.
9. Loose or broken wire #02 from tilt switch TS1 to base terminal strip (ANSI/CSA).
- Check continuity. Replace if defective.
10. Defective tilt relay 28CR (ANSI/CSA).
- Check relay. Replace if defective.
11. Loose or broken wire #19A from tilt relay 28CR to pump motor contactor (ANSI/CSA).
- Check continuity. Replace if defective.
SKYJACK, Page 6
Service and Maintenance
SJIII Compact Series
143909