115
SJ1044 TH, SJ1044 THS, SJ1056 TH, SJ1056 THS, SJ1256 THS
230790ABA
Electrical System Section 4 – Troubleshooting Information
2. Loose or broken wire 221 from 221CR pin 87 to 31
pin connector J31 pin23
Check continuity. Replace if defective
3. Loose or broken wire 221 from 31 pin connector
P31 pin23 to diode D221
Check continuity. Replace if defective
4. Defective diode D221
Check for continuity with positive lead on p31
pin 23 and negative lead on P113 pin 3 Replace if
defective
With following conditions:
▪
Boom Angle Below 40°
▪
Works Above 40°
▪
RAS indicator does not illuminate above 40°
1. Defective relay 212CR.
Check continuity through contacts of relay (pin 30
to 87a with coil de-energized).Replace if defective
2. Loose or broken wire 213 from 221CR pin 87a to
223ACR pin 30
Check continuity. Replace if defective
With following conditions:
▪
Boom Angle Below 40°
▪
Works Above 40°
▪
RAS indicator does illuminate above 40°
1. Loose or broken wire 223A from 220CR pin 30 to
223ACR pin 86
Check continuity. Replace if defective
2. Loose or broken wire 00 from 223ACR pin 85 to
ground
Check continuity. Replace if defective
3. Defective relay 223ACR.
Check continuity through contacts of relay (pin 30
to 87 with coil energized).Replace if defective
4. Loose or broken wire 65 from 223ACR pin 87
through spice SPL65 to 65CR relay pin 86
Check continuity. Replace if defective
With following conditions:
▪
No Frame Level with Boom angle above 40°, Park brake on, and/or transmission in neutral, and/or service
brake depressed.
▪
Works Below 40°, and above 40° with park brake off, transmission in neutral, and no service brake input.
▪
RAS indicator illuminates above 40°
1. Loose or broken wire 223 from 223CR relay pin 87
through splice 223 to 220CR pin 87a
Check continuity. Replace if defective
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