No Functions From Platform Controls; No Lift/Lower From Platforms Controls; No Steer Left; 10 No Steer Right - Skyjack SJ12 E Service Manual

Electrical System

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
2. Loose or broken 08 wire from E-stop switch S4
Joystick pin P-17
3. Defective enable switch or wiring on upper contol
joystick
4. Defective ground wire 00 from machine controller
pin P-32 to B-
5. Defective Joystick

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
2. Open or defectivelift/off/drive switch S3

4.2-9 No Steer Left

1. Loose or broken wire 24 from steer coil 4H-24 to
machine controller pin A1
2. Defective coil 4H-24
3. Defective left steer switch or wiring on upper
contol joystick

4.2-10 No Steer Right

1. Loose or broken wire 23 from steer coil 4H-23 to
machine controller pin A24
2. Defective coil 4H-23
3. Defective right steer switch or wiring on upper
contol joystick
SJ12 E, SJ16 E, SJ20 E
Section 4 – Troubleshooting Information
Check continuity. Replace if defective.
Check continuity. Replace if defective.
Check wiring and switch. Repair or replace if
defective.
Check continuity. Replace if defective.
Replace if defective
Check continuity. Replace if defective.
Close switch. Replace if defective
Check continuity. Replace if defective.
Replace coil
Check wiring and switch. Repair or replace if
defective.
Check continuity. Replace if defective.
Replace coil
Check wiring and switch. Repair or replace if
defective.
241914ACA
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