67
SJ12 E, SJ16 E, SJ20 E
241914ACA
Electrical System Section 4 – Troubleshooting Information
4.2-8 No Lift/Lower from Platforms Controls
1. Loose or broken 09 wire from lift/off/drive switch
S3 to joystick pin P-23
Check continuity. Replace if defective.
2. Open or defectivelift/off/drive switch S3 Close switch. Replace if defective
4.2-7 No Functions from Platform controls
1. Loose or broken 08 wire from E-stop switch S4 to
lift/off/drive switch S3
Check continuity. Replace if defective.
2. Loose or broken 08 wire from E-stop switch S4
Joystick pin P-17
Check continuity. Replace if defective.
3. Defective enable switch or wiring on upper contol
joystick
Check wiring and switch. Repair or replace if
defective.
4. Defective ground wire 00 from machine controller
pin P-32 to B-
Check continuity. Replace if defective.
5. Defective Joystick Replace if defective
4.2-9 No Steer Left
1. Loose or broken wire 24 from steer coil 4H-24 to
machine controller pin A1
Check continuity. Replace if defective.
2. Defective coil 4H-24 Replace coil
3. Defective left steer switch or wiring on upper
contol joystick
Check wiring and switch. Repair or replace if
defective.
4.2-10 No Steer Right
1. Loose or broken wire 23 from steer coil 4H-23 to
machine controller pin A24
Check continuity. Replace if defective.
2. Defective coil 4H-23 Replace coil
3. Defective right steer switch or wiring on upper
contol joystick
Check wiring and switch. Repair or replace if
defective.
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