Skyjack SJ85 AJ Service Manual

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SJ85 AJ 229044ADA
Electrical System Section 4 – Troubleshooting Information
4.2-2 No Power
No Power to Platform:
1. Open or defective key select switch S2. Select platform position on key switch. Check
continuity through base key switch. Replace if
defective.
2. Loose or broken wire #07A from key select
switch S2 to platform emergency stop switch S4.
Check continuity. Replace if defective.
3. Open or defective platform emergency stop
switch S4.
Check switch. Replace if defective.
4. Loose or broken wire #04A from platform
emergency stop switch S4 to Ignition switch S9.
Check continuity. Replace if defective.
No Power to Base:
1. Open or defective base key switch S2. Select base position on key switch. Check
continuity through base key switch. Replace if
defective.
2. Loose or broken wire #12 from base key switch
S2 to Ignition/E-pump switch S4.
Check continuity. Replace if defective.
3. Open or defective emergency stop switch S4. Check switch is in on position. Check continuity
through switch. Replace if defective.
4. Loose or broken wire #10 from emergency stop
switch S4 to base ignition switch S5.
Check continuity. Replace if defective.
5. Open or defective Ignition/E-pump (enable)
switch S5.
Check switch. Replace if defective.
4.2-3 Engine will not Crank
Engine will not Crank from Base:
1. Loose or broken wire #57A from base start
switch S5 to Engine electrical box connector J3
pin Pin 8.
Check continuity. Replace if defective.
Engine will not Crank from Platform:
NOTE
Engine will not crank with footswitch depressed or platform overloaded.
1. Loose or broken wire #57A from base start
switch S5 to Engine electrical box connector J3
pin Pin 8.
Check continuity. Replace if defective.
2. Loose or broken wire #57A from base start
switch S5 to Engine electrical box connector J3
pin Pin 8.
Check continuity. Replace if defective.
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Skyjack SJ85 AJ Specifications

General

Brand	Skyjack
Model	SJ85 AJ
Category	Boom Lifts
Language	English