The dynamometer key is essentially a regular key with a built-in dynamometer. It is convenient for them to tighten the nuts and bolts, accurately matching the parameters, which cannot be taken with a regular key. For example, if it is indicated that the tightening of the reducer fastening bolt is performed with an effort of 35 N.M., the dynamometric key will ensure that it is precisely with this condition. Therefore, it became a necessary tool for the owner of a car or car repair shop.
Dynamometric Key Operation Rules
In order not to damage the key and prevent serious errors in the assembly, you need to know the basic rules for using the key:
- holding the key with one hand, the second turn the knob of the key;
- establish the necessary tightening accuracy;
- fix the established accuracy;
- spin the fastening item with the achievement of the specified parameter and complete the operation.
Features of using a dynamometric key
To improve the quality of the desired result, you need to carefully treat the work and adhere to the rules in the process:
- it is forbidden to delay the item after clicking;
- a new key or one that has not been used for a long time, it is better to first use for a tightening with low loads;
- to store a dynamometric key, it is recommended to set the minimum tightening value;
- you can not clean the key to the cleaning tools, but only wipe;
- do not lower the handle beyond the lower and upper boundaries of the main scale;
- turns of the handle in the position of the tightening of the lock nut can break the correct operation of the tool.
Types of dynamometer keys
Depending on the type of key, you can solve a specific task with the goal. There are types of dynamometer keys:
- click ─ has a convenient execution of clamping until clicking;
- shooter With the ability to twist nuts with right and left thread;
- digital Allows you to monitor the tightening effort in real time on the electronic screen.
Instructions for using a click of the dynamometric key
The most common type of key allows you to install tightening accuracy in advance. The completion of the work indicates a characteristic click, which makes the key mechanism. The main thing is that it is necessary to know ─ this is the correct setting of the value on the main and auxiliary scales.
Manual:
- slide the lock nut of the handle counterclockwise;
- set the tightening value on the main scale. Further, if necessary, set an additional value on auxiliary scale, which in sum with the basic gives the desired load;
- tighten the locking nut of the handle in a clockwise arrow;
- perform the roast of the nut with the desired value, about which indicates the tool click.
Instructions for using an arrow dynamometric key
The use of this type of key requires the performer of high caution and care to the accuracy of the load. Because, without having calculated the power of the stretch, you can cause unwanted consequences: Pour the nut or spoil the tool.
Manual:
- determine with the accuracy of the scale on the scale;
- smooth movements to delay the fastening item by controlling the testimony on the scale;
- upon reaching the necessary clamping to complete the work.
Dynamometric Digital Type Dynamometric Key Instructions
The measurement of the effort is performed due to the electronic sensor built into the instrument design. According to the principle of operation, it is similar to a clock dynamometer key. The tightening value must be installed in advance, and by reaching it the key makes a peculiar beep.
The digital display allows you to monitor and change the values \u200b\u200bof the force at a specific point in time.
All keys require proper storage and use to eliminate unwanted errors. Knowledge of the use of all types of dynamometric keys will allow you to qualitatively perform a specific task with the necessary conditions.
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