CLAAS 769Dh: TR3 (A57-3) Short-circuit at the 12V of the rear PTO brake contact
Issue description
A short-circuit has been detected at the 12V power supply of the rear PTO brake contact. This condition has caused the rear PTO brake to become inactive.
Check the cause
The 12V power supply wiring connected to the rear PTO brake contact
The integrity of the wiring harness associated with the rear PTO brake contact
Connections and terminals at the rear PTO brake contact
Repair steps
Inspect
Inspect the 12V power supply wiring and connections for the rear PTO brake contact for signs of damage, wear, or short-circuiting.
Test
Use a multimeter to test for continuity and voltage at the 12V power supply of the rear PTO brake contact.
Repair
If a short-circuit is confirmed, repair or replace the affected wiring or connections as necessary.
Parts you might need
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