1, drilling
Thread specification
The threaded holes in the table with the corrupted into Φ standard bit pruned.Be careful not to drill into conical or not vertical, bored after chamfering, chamfering depth should not be more than 0.4 P (pitch).Because of too much chamfer for screwing in a screw and can lead to poor assembly.
2, tapping
With the corresponding specifications of the special tap, a screw in the drilled hole tapping, tapping must exceed the length of the length of a screw.All tapping hole.Tapping screw holes within the field of precision decide the standard tolerance zone, the user to properly select tapping method, and lubrication;Blind hole tapping into the appropriate, in case of broken tap.After tapping screw thread hole should be clean, prevent the screw hole and silk suites have sundry, general use compressed air blow gun.Tapping after application of the corresponding holes is in accordance with the provisions of the thread plug gauge to check accuracy requirement.Especially new tap and tap is close to wear must be used when using thread plug gauge to check to identify tap screw holes is available.
Thread specification
The threaded holes in the table with the corrupted into Φ standard bit pruned.Be careful not to drill into conical or not vertical, bored after chamfering, chamfering depth should not be more than 0.4 P (pitch).Because of too much chamfer for screwing in a screw and can lead to poor assembly.
2, tapping
With the corresponding specifications of the special tap, a screw in the drilled hole tapping, tapping must exceed the length of the length of a screw.All tapping hole.Tapping screw holes within the field of precision decide the standard tolerance zone, the user to properly select tapping method, and lubrication;Blind hole tapping into the appropriate, in case of broken tap.After tapping screw thread hole should be clean, prevent the screw hole and silk suites have sundry, general use compressed air blow gun.Tapping after application of the corresponding holes is in accordance with the provisions of the thread plug gauge to check accuracy requirement.Especially new tap and tap is close to wear must be used when using thread plug gauge to check to identify tap screw holes is available.
Use special tool to put a screw in the installation tools, installed to handle embedded guide slot rotation tool handles, by its diameter was reduced by twisted shank installation along the screw hole thread screwing in the screw hole, and make it within 0.25-0.75 times surface with empty thread.Small when installing a screw and 14 * 2 or more coarse thread silk set of "T" type slot can be used when installation or simple screw head with installation, and pay attention to don't impose on a screw to install the handle large axial force to prevent jump "teeth".Steel wire spiral sets is to use a special tool stuck its installation handle, for quick installation or assembly line assembly, a screw using electric or pneumatic semi-automatic installer to obtain a fast and reliable installation.After installation, a screw for testing standard which is formed by the internal thread pit accuracy, can examine corresponding level gauges.
4, install handle broken
Hole, a screw to install the handle must be broken, thrust generally use the cross on the horizontal line, install the handle, with around 200 g bang head on it can be removed.Install the handle will be from the break tank break.Broken handle installation should begin from the screw hole will be removed.
Take a screw: problems during the installation process or due to the use of time is too long a screw, a screw can be removed should use cone with edge detection and set of tools, to prepare the handle, with a bang head on, with the hand strength to press the handle counterclockwise rotation can take out a screw.
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