Skyjack SJ16 - 10 No down Function from Platform Controls; 11 Pothole Bars will Not Retract

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SJ12, SJ16
213558ADA
Electrical System Troubleshooting Section 4 – Troubleshooting Information
4.2-10 No Down Function from Platform Controls
NOTE
Down function is not proportionally controlled
1. Loose or broken wire #A from Joystick S7
connector pin #6 to Diode DA on Lift/Off/Drive
switch S3.
Check continuity. Replace if defective.
2. Open diode DA. Check diode. Replace if defective.
3. Loose or broken wire #A from Diode DA to Lift/
Off/Drive switch S3.
Check continuity. Replace if defective.
4. Open or defective Lift/Off/Drive switch S3.
Operate switch.Check continuity between wire
#A and wire #13 when Lift selected.Replace if
defective.
5. Loose or broken wire #13 from Lift/Off/Drive
switch S3 to Platform connector X1 pin #A7.
Check continuity. Replace if defective.
6. Loose or broken wire #13 in Mast control cable
or its connections.
Check continuity between Mast function cable
connector P2 pin #1 and Platform connector X1
pin #A7 on cable. Check for loose or corroded
connections on cable connectors.Replace if wire is
defective.
7. Loose or broken wire #13 from Mast function
cable connector P2 pin #1 to Down Valve coil
2H-13.
Check continuity. Replace if defective.
8. Loose or broken wire #02 from Base terminal
block to Down Valve coil 2H-13.
Check continuity. Replace if defective.
9. Defective Down Valve coil 2H-13. Check continuity through coil. Replace if defective.
4.2-11 Pothole Bars Will Not Retract
NOTE
Machine must be below high speed limit switch LS1 to allow the pothole bars to retract
1. Loose or broken wire #21 from base terminal
block to pothole release valve coil 2H-21.
Check continuity. Replace if defective.
2. Loose or broken wire #02 from base terminal
block to pothole release valve coil 2H-21.
Check continuity. Replace if defective.
3. Defective pothole release valve coil 2H-21. Check continuity through coil. Replace if defective.
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