Fault Phenomenon: Caterpillar 160M grader rear ripper sticks when lifting, piston rod bent.

Troubleshooting Process:
– Checked load: ripper tip stuck in a large rock, forced lifting.
– Checked synchronization: multi-cylinder action out of sync.
– Checked material: insufficient piston rod strength.
– Checked guidance: cylinder mounting bracket deformed.

Root Cause: The rear ripper tip got stuck in rock, and the operator forced the lift, causing the cylinder to bear a high side load and bend.

Required Parts: Rear ripper cylinder assembly.