FREE CPO Maintenance & Troubleshooting Questions and Answers

Question 1

What is the first step in troubleshooting a concrete pump malfunction?

Accepted Answer

Perform a visual inspection.

Answer

Replace all components.

Answer

Call a technician immediately.

Answer

Add water to the system.

Question 2

Why is regular lubrication of pump parts important?

Accepted Answer

Reduces wear and overheating.

Answer

Increases noise.

Answer

Prevents water mixing.

Answer

Speeds up concrete setting.

Question 3

What indicates air is trapped in the concrete line?

Accepted Answer

Spitting or uneven flow at hose end.

Answer

Clear and smooth flow.

Answer

Low pressure reading.

Answer

Uniform speed.

Question 4

How often should hydraulic fluid levels be checked?

Accepted Answer

Daily before operation.

Answer

Weekly after cleaning.

Answer

Monthly.

Answer

Only during repairs.

Question 5

What should be done if excessive vibration is noticed?

Accepted Answer

Stop and inspect the system.

Answer

Pump faster.

Answer

Ignore it.

Answer

Increase water content.

Question 6

What can help prevent buildup of concrete in pipes after pumping?

Accepted Answer

Flush the system with water or slurry.

Answer

Add more cement.

Answer

Keep the pump running.

Answer

Use higher pressure.

Question 7

What is a common reason for inconsistent pumping?

Accepted Answer

Worn wear parts like plates or rings.

Answer

Overfilled hopper.

Answer

Using fly ash.

Answer

High slump mix.

Question 8

Why is checking the water box level important?

Accepted Answer

Cools pump pistons.

Answer

It lubricates the hopper.

Answer

Improves slump control.

Answer

Helps pipe cleaning.

Question 9

What maintenance should be done weekly on concrete pumps?

Accepted Answer

Clean filters and inspect belts.

Answer

Polish the exterior.

Answer

Change all fluid types.

Answer

Replace hoses.