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Electrical System
4.2-11 No Boom Down from the Base Console
1. Loose or broken wire #10A from IGN switch S5
to boom switch S12
2. Defective boom switch S12
3. Loose or broken wire #13B from boom switch
S12 to base control module connector J2 pin 16
4.2-12 No Boom Down from the Platform Console
1. Loose or broken wire #04 from platform terminal
block to joystick controller A1
2. Loose or broken wire #02 from platform terminal
block to joystick controller A1
3. No output on y-axis of joystick controller A1
4. Loose or broken wire "Y" from joystick controller
to J13 pin #15 of platform control module
4.2-13 No Turret Rotate Right from the Base or Platform Consoles
1. Loose or broken wire #33 from base control
module connector J2 pin 24 base terminal block
to turret harness plug pin #10
2. Loose or broken wire #33 from turret harness
plug pin #10 to boom up valve 4H-33
3. Loose or broken wire #02 from turret harness
plug to boom up valve 4H-33
4. Defective boom up coil 4H-33
4.2-14 No Turret Rotate Right from the Base Console
1. Loose or broken wire #10A from IGN switch S5
to turret rotate switch S13
2. Defective turret rotate switch S13
3. Loose or broken wire #33B from boom switch
S12 to base control module connector J2 pin 32
SJ60AJ+
Section 4 – Troubleshooting Information
Check continuity. Replace if defective
Check continuity through switch while activating
boom down function between wires #10A and
#13B. Replace switch if no continuity
Check continuity. Replace if defective
Check continuity. Replace if defective
Check continuity. Replace if defective
Refer to joystick test procedure in section 5
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 continuity through switch while activating
turret rotate right function between wires #10A and
#33B. Replace switch if no continuity
Check continuity. Replace if defective
238275AAA
95
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