Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A hydraulic excavator is experiencing erratic steering and a 'spongy' feel in the steering controls. A pressure gauge connected to the steering system shows fluctuating pressure readings. All fluid levels are correct. What is the next logical step in diagnosing this issue?
Fluctuating pressure with correct fluid levels strongly suggests an issue with the hydraulic pump itself, such as internal wear, a faulty compensator, or a fail
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Question: A hydraulic excavator is experiencing erratic steering and a 'spongy' feel in the steering controls. A pressure gauge connected to the steering system shows fluctuating pressure readings. All fluid levels are correct. What is the next logical step in diagnosing this issue?
Answer options: ✅ Inspect the steering pump for wear or damage.
- Adjust the steering column free play.
- Bleed air from the steering cylinders.
- Check universal joints on the steering shaft.
Correct answer: Inspect the steering pump for wear or damage.
Explanation: Fluctuating pressure with correct fluid levels strongly suggests an issue with the hydraulic pump itself, such as internal wear, a faulty compensator, or a failing relief valve, leading to inconsistent pressure delivery and 'spongy' steering.
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