127
SJ82 T, SJ86 T
229040ABA
Electrical System
Section 4 – Troubleshooting Information
10.
Loose or broken wire #41 from plug B pin #11 to
platform terminal block.
Check continuity. Replace if defective
11.
Open diode D41 located in platform terminal
block.
Check diode. Replace if defective.
No Manual Platform Level Down
1.
Loose or broken wire #10A from ignition/ pump
switch S5 to platform level switch S15.
Check continuity. Replace if defective
2.
Defective platform level switch S15.
Check continuity through switch while activating
level down function between wires #10A and #40.
If no continuity found replace switch.
3.
Loose or broken wire #40 from platform level
switch S15 to base terminal block.
Check continuity. Replace if defective
4.
Loose or broken wire #40 from base terminal
block to turret harness pin plug pin #14.
Check continuity. Replace if defective
5.
Loose or broken wire #40 from turret harness pin
plug pin #14 platform level down valve 4H-40.
Check continuity. Replace if defective
6.
Loose or broken wire #02 from turret harness pin
plug platform level down valve 4H-40.
Check continuity. Replace if defective
7.
Defective platform level down valve coil 4H-40.
Check continuity and resistance through coil.
Replace if defective.
8.
Loose or broken wire #40 from base terminal
block to base connector plug B pin #10.
Check continuity. Replace if defective
9.
Loose or broken wire #40 in boom cable B or its
connectors.
Check for continuity between pins #10 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
10.
Loose or broken wire #40 from plug B pin #10 to
platform terminal block.
Check continuity. Replace if defective
11.
Open diode D40 located in platform terminal
block.
Check diode. Replace if defective.
4.2-9 All Controls Inoperative From Platform Control Console
1.
Open or defective emergency stop switch S4.
Pull emergency switch out. Check continuity
through switch. Replace if defective.
2.
Loose or broken wire #4B from emergency stop
switch S4 to platform terminal block.
Check continuity. Replace if defective.
3.
Loose or broken jumper wire #4B on
emergency stop switch S4.
Check continuity. Replace if defective.
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