Fault Finding - Case 580SR Service Manual

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1.4

FAULT FINDING

Differential lock not engaging
(mechanical differential lock)
Differential lock not disengaged
(mechanical differential lock)
Differential lock not engaging
(electrical differential lock)
Differential lock not disengaged
(electrical differential lock)
PROBLEM
External linkage damaged or
broken
Internal linkage, cross shaft rod,
fork or pivot shaft damaged/
broken
Damaged or broken teeth on
differential lock adaptor or
coupling
Spring broken between adaptor
and coupling
Teeth of adaptor or coupling
damaged/burred
Internal linkage, cross shaft rod,
fork or pivot shaft damaged/
broken
Damaged or broken teeth on
differential lock adaptor or
coupling
Solenoid valve sticking not
operating
Solenoid valve electrical
connection poor or coil not
energizing
Spring broken between adaptor
and coupling
Teeth of adaptor or coupling
damaged/burred
Internal linkage, cross shaft rod,
fork or pivot shaft damaged/
broken
Damaged or broken teeth on
differential lock adaptor or
coupling
Solenoid valve electrical
connection poor or coil not
energizing
SECTION 27 - REAR AXLE
CAUSE
Copyright ©
CORRECTION
Replace/repair as required.
Remove and inspect.
Remove differential and inspect
differential lock assembly.
Remove differential and replace
spring.
Remove differential and replace
damaged parts.
Remove, inspect and repair.
Remove differential and inspect
differential lock assembly.
Replace/repair as required.
Replace/repair as required.
Remove differential and replace
spring.
Remove differential and replace
damaged parts.
Remove and inspect.
Remove differential and inspect
differential lock assembly.
Replace/repair as required.
27