When checking a power steering gear box on a Class 8 truck, what is the proper procedure to check for internal leakage?
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APerform a pressure test with the steering wheel at full lock
BVisually inspect the outside of the box for fluid
CRemove the gear box and check for metal particles
DMeasure steering wheel free play
✓ Correct answer: A. Perform a pressure test with the steering wheel at full lockTo check for internal leakage in a power steering gear box, a pressure test should be performed while observing if pressure drops when the steering wheel is held at full lock, which would indicate internal leakage past seals or valves.
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