133
229042ABASJ46 AJ+, SJ46 AJ, SJ51 AJ
Electrical System - ANSI/CSA Section 4 – Troubleshooting Information
4.2-49 No Jib Down 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 down function between wires #04 and #34A.
Replace switch if no continuity
3. Loose or broken wire #34A from jib switch S21 to
platfrom control module connector J12 pin 26
Check continuity. Replace if defective
4.2-50 No Drive or Steer Functions
1. Loose or broken wire #04 from platform terminal
block to drive joystick A2
Check continuity. Replace if defective
2. Loose or broken wire #02 from platform terminal
block to drive joystick A2
Check continuity. Replace if defective
3. Defective drive joystickA2 See drive joystick test procedure in section 5
4.2-51 No Forward or Reverse Drive
1. No output on “D” when forward is selected on
drive joystick A2
See drive joystick test procedure in section 5
2. Loose or broken wire ”D-signal” from drive
joystick A2 to platform control module connector
J13 pin #14
Check continuity. Replace if defective
4.2-52 No Forward Drive
1. No output from base control module at connector
J2 pin #1 to wire #16
Check for correct output voltage.
2. Loose or broken wire 16 from base control
module connector J2 pin #1 to turret connector
pin 21
Check continuity. Replace if defective
3. Loose or broken wire #16 from turret plug pin 21
to drive pump valve connector pin #4
Check continuity. Replace if defective
4. Loose or broken wire #16 from drive pump valve
connector pin #4 to 3H-16 Forward coil
Check continuity. Replace if defective
5. Loose or broken wire #02 wire from 3H-16
Forward coil to ground
Check continuity. Replace if defective
6. Defective forward coil 3H-16 Check continuity and resistance through coil.
Replace if defective
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