Table of Contents
Advertisement
Section 4 – Troubleshooting Information
9. Loose or broken wire #02 from platform terminal
block to jib down valve 4H-34.
10. Defective jib down valve coil 4H-34.
No Jib Up Or Down
1. Loose or broken wire #35A from resistor R2 to
base key switch S2.
2. Open or defective base key switch S2.
3. Loose or broken wire #42 from base key switch
S2 to turret harness plug pin #16.
4. Loose or broken wire #42 from turret harness
plug pin #16 to proportional flow enable valve
2H-42.
5. Loose or broken wire #02 from turret harness
plug to proportional flow enable valve 2H-42.
6. Defective proportional flow enable valve coil 2H-
42.
No Manual Platform Level Up
1. Loose or broken wire #10A from ignition/ pump
switch S5 to platform level switch S15.
2. Defective platform level switch S15.
3. Loose or broken wire #41 from platform level
switch S15 to base terminal block.
4. Loose or broken wire #41 from base terminal
block to turret harness pin plug pin#15.
5. Loose or broken wire #41 from turret harness pin
plug pin#15 platform level up valve 4H-41.
6. Loose or broken wire #02 from turret harness pin
plug platform level up valve 4H-41.
7. Defective platform level up valve coil 4H-41.
8. Loose or broken wire #41 from base terminal
block to base connector plug B pin #11.
9. Loose or broken wire #41 in boom cable B or its
connectors.
229040ABA
126
Check continuity. Replace if defective
Check continuity and resistance through coil.
Replace if defective.
Check continuity. Replace if defective
Select base control console on switch. Check
continuity through switch. Replace if defective.
Check continuity. Replace if defective
Check continuity. Replace if defective
Check continuity. Replace if defective
Check continuity and resistance through coil.
Replace if defective.
Check continuity. Replace if defective
Check continuity through switch while activating
level up function between wires #10A and #41. If
no continuity found replace switch.
Check continuity. Replace if defective
Check continuity. Replace if defective
Check continuity. Replace if defective
Check continuity. Replace if defective
Check continuity and resistance through coil.
Replace if defective.
Check continuity. Replace if defective
Check for continuity between pins #11 on cable B.
Check for loose or corroded connections on cable
connectors. Replace if wire is defective.
Electrical System
SJ82 T, SJ86 T
Advertisement
Table of Contents
