Skyjack SJ16 - 20 Reverse Drive Function Inoperative; 21 Two or more Functions at One Time

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SJ12, SJ16
213558ADA
Electrical System Troubleshooting Section 4 – Troubleshooting Information
4.2-20 Reverse Drive Function Inoperative
1. Loose or broken wire #15 from Lift/Off/Drive
switch S3 to Platform connector X1 pin #A10.
Check continuity. Replace if defective.
2. Loose or broken wire #15 in mast control cable
or its connectors.
Check continuity between Mast function cable
connector P2 pin #3 and Platform connector X1
pin #A9 on cable. Check for loose or corroded
connections on cable connectors.Replace if wire is
defective.
3. Loose or broken wire #15 from Mast function
cable to Reverse Cutout Relay 15BCR.
Check continuity. Replace if defective.
4. Defective Tilt switch TS1. Test Tilt switch. Replace if defective.
5. Loose or broken wire #15B from Tilt switch TS1
to Reverse Cutout Relay 15BCR.
Check continuity. Replace if defective.
6. Loose or broken wire #02 from Reverse Cutout
Relay 15BCR to Base terminal block.
Check continuity. Replace if defective.
7. Defective Reverse Cutout Relay 15BCR. Check relay. Replace if defective.
8. Loose or broken wire #15A from Reverse Cutout
Relay 15BCR to Base terminal block.
Check continuity. Replace if defective.
9. Loose or broken wire #15A from Base terminal
block to Reverse Valve coil 4H-15A.
Check continuity. Replace if defective.
10. Loose or broken wire #02 from Base terminal
block to Reverse Valve coil 4H-15A.
Check continuity. Replace if defective.
11. Defective Reverse Valve coil 4H-15A. Check continuity. Replace if defective.
4.2-21 Two or More Functions at One Time
1. Shorted diode(s). Check continuity of all diodes. Replace if defective.
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