CFA Hydraulic & Transmission Service 2

Question 1

What does a sudden drop in hydraulic lift speed typically indicate?

Accepted Answer

Low hydraulic fluid level or a worn pump

Answer

A sudden drop in lift speed usually points to low hydraulic fluid or a worn/failing hydraulic pump unable to maintain pressure.

Question 2

Which hydraulic component controls the direction of fluid flow to the lift and tilt cylinders?

Accepted Answer

Control valve

Answer

The control valve directs hydraulic fluid to the appropriate cylinder based on operator input from the lift, tilt, and attachment levers.

Question 3

What is the purpose of a hydraulic system relief valve?

Accepted Answer

To limit maximum system pressure and prevent component damage

Answer

The relief valve opens when system pressure exceeds a set limit, bypassing fluid back to the tank to protect hoses, cylinders, and the pump.

Question 4

A forklift's hydraulic fluid appears milky or frothy. What is the most likely cause?

Accepted Answer

Water contamination in the hydraulic system

Answer

A milky or frothy appearance in hydraulic fluid indicates water contamination, often from a failed seal, condensation, or improper fluid mixing.

Question 5

When checking hydraulic fluid level on a sit-down counterbalanced forklift, the mast should be:

Accepted Answer

Vertical with forks lowered to the ground

Answer

Hydraulic fluid level must be checked with the mast vertical and forks fully lowered so fluid is properly distributed in the system.

CFA Practice Test