Author Question: A disc brake may not be fully releasing because the wheel is difficult to rotate when the vehicle is ... (Read 93 times)

luminitza · **on:** Jun 23, 2018

A disc brake may not be fully releasing because the wheel is difficult to rotate when the vehicle is off the ground. Technician A says to open the bleeder valve to see if the wheel now rotates freely. Technician B says that there could be a restriction between the master cylinder and the wheel brake. Which technician is correct?

A) Technician A only B) Technician B only
C) Both Technicians A and B D) Neither Technician A nor B

Question 2

Technician A says that all metal-to-metal contact areas of the disc brake system should be lubricated with special brake grease for proper operation. Technician B says that the lubrication helps reduce brake noise (squeal). Which technician is correct?

A) Technician A only B) Technician B only
C) Both Technicians A and B D) Neither Technician A nor B