During a routine inspection of an articulated grader, significant grease leakage is observed from the articulation joint pins. What does this indicate and what is its primary consequence if left unaddressed?

Question: During a routine inspection of an articulated grader, significant grease leakage is observed from the articulation joint pins. What does this indicate and what is its primary consequence if left unaddressed?

Answer options: ✅ Worn seals and bushings in the articulation joint, leading to accelerated wear and eventual failure.

• Over-greasing of the articulation joint, causing excess lubricant to escape.
• A healthy and well-lubricated joint, as grease needs to escape to prevent over-pressurization.
• Minor cosmetic issue that does not affect mechanical operation.

Correct answer: Worn seals and bushings in the articulation joint, leading to accelerated wear and eventual failure.

Explanation: Grease leakage from articulation pins indicates worn seals and bushings. This allows contaminants in and lubricant out, leading to insufficient lubrication, accelerated wear, increased play, and potential structural failure of the joint components. Regular maintenance and seal replacement are critical.