A torque wrench is the name given to a special tool that is intended to tighten bolts and nuts accurately to a particular level and is used almost everywhere on bikes and cars. Torque wrenches are hand-adjustable so no other tools are needed in their operation. Torque wrenches should be calibrated annually in order to ensure the harsh marks stay as accurate as they should be. For a wide range of torque wrenches visit https://au.rs-online.com.
To use a torque wrench the handle will need to be adjusted and set to a particular torque level, with the tightener situated on the end of the handle employed to ensure it is locked in place. The wrench can then be fitted over the socket, bolt or nut and turned clockwise to tighten. After the user has finished the handle settings should be returned to 0 and the wrench stored in a safe place.
How to adjust a torque wrench
The first step in adjusting a torque wrench is to loosen the tightener that is situated at end of the handle, which is normally a metal or plastic cap. Turn it counter-clockwise to loosen it so that the settings can be changed. Inspect the handle to locate the hash marks that indicate torque settings.
The set of large numbers on the wrench’s body are the large units, with the set of small numbers on the handle itself being the smaller digits. The lower number is measured in feet-pounds, and the higher in meter-kilograms.
To lock the wrench again, the tightener needs to be screwed into the end of the wrench once more. Flip it back to the handle, use your non-dominant hand to keep the wrench still and clockwise twist the tightener until the handle is again locked in place.
How to tighten nuts and bolts
Start using a torque wrench by sliding a socket matching the particular nut or bolt you want to tighten into the wrench’s head. If an adaptor or extender is being used, slide that in instead. Sockets are usually interchangeable even in different sized torque wrenches. The bolt or nut can then be turned until it catches the screw’s threading. The nut or bolt on the vehicle should be turned until it does the same and keep turning until it can be turned no more.
The socket should then be fitted on top of the nut/bolt being tightened. Use your non-dominant hand to hold the torque wrench’s handle and use your other hand to guide the socket onto the nut/bolt. Slide the wrench over until both pieces are flush.
The handle should be turned clockwise to tighten the nut/bolt.
There are a number of things that need to be done to maintain a torque wrench properly. After use a wrench should be dialled back to zero as not doing so can cause calibration to become off.
Rusty bolts or nuts should be cleaned prior to use, and wrenches should also be calibrated once a year at minimum.
Torque wrenches are simple to use and will produce great results when used correctly.