Problem: Large Pully Wobble
Solution Date: 7/10/2024
Serial Number Break: 16992769798
Failure Mode: Viable signs of damage when unpackaging included:
- The coil connecter was cracked or had other damage.
- The rear head shipping caps are dented.
- Chip on the pully.
- The pulley developed a wobble after testing
Root Cause: All damages were consistent with the drop test proving that the current packaging failed to provide protection.
Solution: Moving forward, a new packaging solution will be implemented using a higher-density foam.
Problem: AC compressor making noise
Solution Date: 5/30/2024 Serial Number Break: NA
Failure Mode: AC compressor cores are coming back with two different types of dust shields on them.
Root Cause: The older dust shields (shown below on the right), are susceptible of making noises because the clearances are extremely tight.
Solution: Moving forward, all dust shields will be replaced will the newer style (shown below on the left), to open up the clearances.
Old dust shield causing the noise.
New dust shield with more clearance.
Problem: AC compressor not cooling
Solution Date: 5/1/2024 Serial Number Break: NA
Failure Mode: The ac compressor will quit operating when the compressor wires are damaged due to the pulley rotation.
Root Cause: There is a possibility of water intrusion causing the compressor to freeze and seize.
Solution:
- An AC compressor shield has been created to prevent water intrusion.
- See CNH BULLETIN NUMBER: 2022 – 098 CIH N SB