Understanding Torque Wrench Mechanisms

This video tutorial explains the workings of a ratcheting click-type torque wrench, the most commonly used type. It covers the basic concept of torque, how to measure it, and the importance of using a torque wrench to ensure proper fastening. The video details the components of a torque wrench, including the handle, main scale, locking ring, and ratchet head. It explains how to set and adjust torque values and describes the ratchet head mechanism. The tutorial also covers the click mechanism that signals when the desired torque is reached and provides maintenance tips to ensure the tool's longevity.

What is the primary purpose of a torque wrench?

• To measure the length of a fastener

• To loosen fasteners

• To cut fasteners

• To apply a specific torque to fasteners

Why is it important not to use a torque wrench to loosen fasteners?

• It can make the wrench longer

• It can damage the fastener

• It can damage the wrench and affect its accuracy

• It can make the wrench heavier

What is the function of the locking ring on a torque wrench?

• To increase the length of the wrench

• To change the direction of the wrench

• To secure the set torque value

• To measure the torque

How can you adjust the torque setting on a torque wrench?

• By pressing a button

• By turning the handle clockwise or counterclockwise

• By shaking the wrench

• By changing the socket

What does the ratchet head mechanism allow you to do?

• Measure the temperature

• Turn the fastener in one direction without repositioning

• Increase the torque automatically

• Change the size of the fastener

What creates the clicking sound in a torque wrench?

• The locking ring engaging

• The ratchet head moving

• The spring releasing energy

• The handle hitting the wrench body

What happens when the preset torque amount is reached?

• The handle locks automatically

• The wrench stops working

• The wrench changes direction

• The click mechanism is activated

What is the role of the spring in the click mechanism?

• To measure the torque

• To change the direction of the wrench

• To store potential energy

• To increase the length of the wrench

Why should a torque wrench be set to its lowest level before storage?

• To save space

• To prevent damage to the internal spring

• To make it easier to use next time

• To keep it clean

What is the purpose of the grooves on the wrench body?

• To increase the length of the wrench

• To change the direction of the wrench

• To keep the handle locked during use

• To measure the torque