Hydraulic bolt tensioners matters needing attention

This product is a high precision products, when used to remind you:

1, hydraulic bolt tensioners in use should avoid knock against, and fall;

2, it is strictly prohibited to knock and collision with sharp hard objects display area;

3 and applying pressure should be smooth, absolutely more than detection range of use;

4, long-term outage Square Drive Hydraulic Torque Wrenches should remove the battery to prevent battery leakage;

5, it is forbidden to use strong solvents (such as benzene, nitro) wipe the panel and the display area;

6, beware of liquid into the wrench, lest damage electronic components;

7, when the battery voltage to can't work, should replace the battery;

8, it is strictly prohibited to free disassembly, lest affect accuracy, if encounter problems, please contact the manufacturer or seller.

9, after using this product should be put back in box;

10, calibration method is only for reference calibration, other people do not move;

11, the product from the date of sale and a half years, in normal use, the non-artificial factors resulting in failure of the products belong to the warranty scope;

The working principle of hydraulic bolt tensioners

 hydraulic bolt tensioners card tower sound principle is very simple, can be divided into the following steps to understand:

1, Square Drive Hydraulic Torque Wrenches is prompt after issued a "tower" sound has reached you claim on the torque value;

2, "tower card" is issued by a torque wrench by itself of the internal structure of torque to release them to release the joint structure is divided into spring pressure, torque, torque of plunger, three structure.

3, first on the torque wrench set the required torque value (from the spring set on the plunger to the torque pressure release joints), locking torque wrench, began to tighten the bolt. When the bolt to the torque value (when using torque greater than the pressure of the spring), will produce instant effect between. At the moment have a disconnect effect issued a joint percussion, wrench metal case of "tower" sound. Thus to confirm be reminded torque values (as we arm joints bend in iron pipe into 15 degrees will encounter after the "straight steel tube principle as a fraction of a second).

The above is the most commonly used manual torque wrench, there are electric torque wrench, pneumatic torque wrench and so on.