132
229042ABA SJ46 AJ+, SJ46 AJ, SJ51 AJ
Section 4 – Troubleshooting Information Electrical System - ANSI/CSA
4.2-45 No Jib Up from the Base Console
1. Loose or broken wire #10A from IGN switch S5
to jib switch S17
Check continuity. Replace if defective
2. Defective jib switch S17 Check continuity through switch while activating
jib up function between wires #10A and #35B.
Replace switch if no continuity
3. Loose or broken wire #35B from jib switch S17 to
base control module connector J2 pin 28
Check continuity. Replace if defective
4.2-46 No Jib Up from the Platform Console
1. Loose or broken wire #04 from platform terminal
block to jib switch S21
Check continuity. Replace if defective
2. Defective jib switch S21 Check continuity through switch while activating jib
up function between wires #04 and #35A. Replace
switch if no continuity
3. Loose or broken wire #35A from jib switch S21 to
platfrom control module connector J12 pin 28
Check continuity. Replace if defective
4.2-47 No Jib Down from the Base or Platform Consoles
1. Loose or broken wire #34 from platform control
module connector J12 pin #24 to platform
terminal strip
Check continuity. Replace if defective
2. Loose or broken wire #34 from platform terminal
strip to jib down valve 4H-34
Check continuity. Replace if defective
3. Loose or broken wire #02 from platform terminal
strip to jib down valve 4H-34
Check continuity. Replace if defective
4. Defective jib down coil 4H-34 Check continuity and resistance through coil.
Replace if defective
4.2-48 No Jib Down from the Base Console
1. Loose or broken wire #10A from IGN switch S5
to jib switch S17
Check continuity. Replace if defective
2. Defective jib switch S17 Check continuity through switch while activating
jib down function between wires #10A and #34B.
Replace switch if no continuity
3. Loose or broken wire #34B from jib switch S17 to
base control module connector J2 pin 26
Check continuity. Replace if defective
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