Skyjack SJ12 Service Manual

83
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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Skyjack SJ12 Specifications

General

Gradeability	25%
Drive Motor	24V DC
Machine Width	32 in (0.81 m)
Stowed Height	6.5 ft
Overall Width	32 in (0.81 m)
Stowed Height (Rails Folded)	6.5 ft
Drive Speed (Elevated)	0.5 mph (0.8 km/h)
Power Source	Electric