During a pre-shift inspection, an operator reports that the tracks on a large excavator seem to be making a 'squeaking' sound and are difficult to turn, especially when manoeuvring. The technician checks the undercarriage and finds that the track sag is considerably less than the manufacturer's recommended specification. What immediate action should the technician take?

Question: During a pre-shift inspection, an operator reports that the tracks on a large excavator seem to be making a 'squeaking' sound and are difficult to turn, especially when manoeuvring. The technician checks the undercarriage and finds that the track sag is considerably less than the manufacturer's recommended specification. What immediate action should the technician take?

Answer options:

• Add more grease to the track adjusters to increase tension.
• Inspect the track pads for damage and replace any broken ones. ✅ Relieve track tension by releasing grease from the track adjuster.
• Lubricate the track pins and bushings with penetrating oil.

Correct answer: Relieve track tension by releasing grease from the track adjuster.

Explanation: A squeaking sound, difficulty turning, and insufficient track sag (meaning the tracks are too tight) all indicate excessive track tension. The immediate corrective action is to relieve this tension by releasing grease from the track adjuster cylinder.