How to use a torque spanner when loosening? Upside down? On reverse pitch?
This tutorial explains how to use a torque spanner "upside down", i.e. counterclockwise, when loosening. This is particularly useful when tightening on a reverse thread.
- Torque spanner
- Torx spanners or Phillips screwdriver
Presentation of the torque spanner
The operation consists of turning the tip of the torque spanner so that it can torque a screw or nut with an inverted pitch, counterclockwise. This type of reverse thread is found on shafts/nuts on maxiscooters (Piaggio, Aprilia, Gilera, BMW etc...).
![Presentation of the torque spanner](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-1.jpg)
Remove the torque spanner plate (1st screw)
Using a Torx or Phillips screwdriver (depending on the model), unscrew the first screw holding the plate at the head of the torque spanner.
![Remove the torque spanner plate (1st screw)](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-2.jpg)
Remove the torque spanner plate (2nd screw)
Then, the second screw is unscrewed to hold the plate in place.
![Remove the torque spanner plate (2nd screw)](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-3.jpg)
Pull out the end of the torque spanner
Once the 2 screws have been unscrewed, the torque spanner mechanism is removed.
![Pull out the end of the torque spanner](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-4.jpg)
Turn the tip over
The mouthpiece is then turned over and put back in its housing.
![Turn the tip over](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-5.jpg)
Turning the tip over (continued)
The nozzle is now in place in its housing.
![Turning the tip over (continued)](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-6.jpg)
Put the plate back in place
The plate can then be repositioned in its original position.
![Put the plate back in place](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-7.jpg)
Screw in the 2 screws to hold the plate in place
Using a Torx or Phillips screwdriver, depending on the model, the 2 screws holding the plate at the head of the torque spanner are tightened.
![Screw in the 2 screws to hold the plate in place](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-8.jpg)
The torque spanner is ready!
The torque spanner is now ready to tighten in one reverse step, counterclockwise.
![The torque spanner is ready!](https://easyboost.fr/img/cms/cle-dynamometrique/comment-utiliser-cle-dynamometrique-pas-inverse-sens-inverse-antihoraire-9.jpg)
Watch the video tutorial below: