12 No Down Function From Base Control Console; 13 Platform Lowers Slowly From Platform And Base (Model 3215); 14 Platform Does Not Decelerate When Lowering (Model 3215); 15 Platform Lifts Slowly From Platform And Base Control Console - Skyjack SJ 3215 Service Manual

Section 4 - Troubleshooting Information
Electrical System (Continued)
3. Open diode D14E-1.
- Check diode. Replace if defective.
4. Open diode D14E.
- Check diode. Replace if defective.

4.1-12 No Down Function from Base Control Console

1. Defective up/down switch S2.
- Check switch. Replace if defective.
2. Loose or broken wire #13 from up/down switch S2 to base terminal block.
- Check continuity. Replace if defective.

4.1-13 Platform Lowers Slowly from Platform and Base (Model 3215)

1. Deceleration limit switch LS7 stuck, out of adjustment or is defective.
- Readjust limit switch so it returns to the normally closed position at 14" before completely
stowed. Check the limit switch is functioning. Replace if defective.

4.1-14 Platform does not Decelerate when Lowering (Model 3215)

1. Deceleration limit switch LS7 out of adjustment.
- Readjust limit switch so it returns to the normally closed position at 14" before completely
stowed. Check the limit
- switch is functioning. Replace if defective.
2. Loose or broken wire #13A (ANSI/CSA) or #13C (CE) from terminal strip to deceleration valve coil
2H-13A (ANSI/CSA) or 2H-13C (CE).
- Check continuity. Replace if defective.
3. Loose or broken wire #02 from terminal strip to deceleration valve coil 2H-13A (ANSI/CSA) or 2H-13C
(CE).
- Check continuity. Replace if defective.
4. Defective deleration valve coil 2H-13A (ANSI/CSA) or 2H-13C (CE).
- Check coil. Replace if defective.

4.1-15 Platform Lifts Slowly from Platform and Base Control console

1. Open diode D14-1.
- Check diode. Replace if defective.

4.1-16 Steer Only Inoperative

1. Defective relay 17CR.
- Check relay. Replace if defective.
2. Loose or broken wire #59D from diodes D23-1 and D24-1 to base terminal block TB1.
- Check continuity. Replace if defective.
3. Loose or broken wire #59D from 17CR steer relay to base terminal block TB1.
- Check continuity. Replace if defective.
4. Loose or broken wire #59 from 17CR steer relay to base terminal block TB1.
- Check continuity. Replace if defective.

4.1-17 Drive Only Inoperative

1. Open diode D17.
- Check diode. Replace if defective.
SKYJACK, Page 8
Service and Maintenance
SJIII Compact Series
143909