The hydraulic system of a deck winch has...

The hydraulic system of a deck winch has...

Question 1 of 270705eccef9cbacbc34ba4d459fb

The hydraulic system of a deck winch has been drained, flushed, and refilled with hydraulic fluid. An erratic knocking noise from the hydraulic motor when the winch is started would indicate __________.

Question 1 of 27070

Q

The hydraulic system of a deck winch has been drained, flushed, and refilled with hydraulic fluid. An erratic knocking noise from the hydraulic motor when the winch is started would indicate __________.

🔍 Key Concepts

• Hydraulic systems after maintenance often have one common issue when first started up • What different problems typically sound like in machinery (knocking vs. grinding vs. straining) • How trapped air vs. solid contaminants affect a hydraulic motor’s operation

💭 Think About

• Think about what could have changed as a result of draining, flushing, and refilling the system—what new problem might this introduce? • Which of these choices would most likely cause an erratic knocking sound specifically, rather than a steady noise or loss of power? • How would a problem that involves solid particles in oil sound different from a problem involving bubbles in oil?

✅ Before You Answer

• Compare which options are directly related to the recent work of draining, flushing, and refilling the system—focus on those first • Ask yourself: which condition can make a hydraulic pump or motor cavitate or behave irregularly when first started? • Eliminate any choice that would more likely cause gradual wear or constant grinding rather than intermittent, erratic knocking.