Diaphragm coupling installation procedures and precautions are as follows：

Installation procedure

1. Preparatory work：

• Check that the diaphragm coupling parts are complete，Includes two half couplings、macropore、ostiole、diaphragm、Bolts and nuts、Buffer sleeve。

• Clean the inner holes of the two half couplings，Make sure there is no dirt or debris。

• Check the diameter and length of the inner holes of the two half couplings，Make sure they match the diameter and shaft extension dimensions of the prime mover and machine。

• Check whether the two axes of the prime mover and the working machine are concentric，If different heart，Manual adjustment required。Check the surfaces of both axes for bruises，Bruising should be treated with a fine file。

2. Erection alignment：

• Install flange and half-shaft joint。For easy installation，Two half couplings can be preheated，If placed in an incubator or oil tank，Make the inner hole size larger，Easy to install。

• At installation，Make sure the clearance between the two half flanges is greater than the thickness of the diaphragm group，However, the gap size should be determined according to the outer diameter of the flange（If the outer diameter of the flange is less than200mm，Gap not exceeding0.3mm；Greater than200mm，Gap not exceeding0.5mm）。

• Measure along the two inner sides of the flange of the half coupling3-4Point reading，Select its average value，It is compared with the sum of measured dimensions of the extended section and two diaphragm groups，Try to make the difference between the two0-0.4mmWithin the scope of。

• Adjust the gap between the two flanges and align them，Ensure that the shaft head does not protrude from the end face of the half-coupling，Preferably flush。

3. Mounting bolt、Buffer sleeve、diaphragm：

• Insert bolt through half coupling hole outside，And then through the membrane hole（Note the direction of the diaphragm），And then through the other half of the coupling hole outside。

• Put on the buffer jacket，Screw on the nut。Pay attention when tightening，Do not let the bolt turn，And make sure the bolt orientation is correct，Avoid bolt breakage or diaphragm distortion。

• After installation and commissioning，Adhesive can be applied to the outer surface of the screw，To increase protection performance。

Matters needing attention

1. Safety protection：

• There may be a risk of scratches on the corners of the coupling with the diaphragm，Wear protective measures such as thick gloves during installation。

• Install protective cover and other safety facilities around the coupling，Ensure safe use of equipment。

2. Axis deviation：

• Pay attention to the error of the axis during installation，Avoid deformation of coupling caused by exceeding allowable value、Damaged or shortened service life。

• Adjust the allowable axis deviation of the diaphragm coupling（Inclusive radial、angular、Axial deviation），Ensure that it is within the allowable value range of the corresponding product catalog。

• If there are multiple deviations，The corresponding allowable value should be halved。In order to extend the service life，It is recommended to set the axis error within one-third of the allowable value。

3. Screw fastening：

• Insert the mounting shaft and tighten the screws，Avoid deformation of coupling。

• When tightening screws，It is best to use a torque wrench，Avoid using screws other than accessories for installation。

4. Inspection and maintenance：

• After installation and commissioning，Check whether the screws are loose and there are no other abnormal phenomena，If so, adjust or replace new parts。

• If a scratch is found on the surface of the diaphragm、Cracks and other defects，It should be repaired or replaced in time。

• Check and maintain couplings regularly，Ensure its normal operation and long-term stability。

Follow the above steps and precautions，It can ensure the correct installation and use of the diaphragm coupling。