The machine bolts are not tightened or the torque is uneven, the machine itself vibrates too much, and the precision of the internal and external threads does not match. It is recommended to add glue first and tighten each one. one with a torque of about 23 to 25.
How to deal with loose screws:
1. Generally, screws have a self-locking function and generally do not loosen under static load. Usually add a spring washer. provide pre-tension to ensure tightness so that it is not easy to loosen.
2. Apply screw glue to effectively bond the screws to prevent them from loosening.
3. Using spring washers can increase contact pressure to increase friction and prevent loosening.
4. Check regularly and tighten in time if there is any play.
Pacific Automotive Network 1. The fan and generator are indragged by a common belt. The generator bracket can be moved to change the position of the pulley to achieve the required seal. 2. The pulley is made up of two halves. First loosen the mounting bolt, then rotate the adjustable half pulley to change the width of the resulting pulley, thereby raising or lowering the V-belt to achieve the required tightness.
Automotive generator belt tightening method
It is equipped with a tension wheel structure. You can loosen the fixing nut, turn the adjustment screw and move the tension wheel up and down to achieve the required tightness.
Open the engine hood, expose the internals and remove the air intake pipe. Continue to remove it and you will see the belt. Generator part. First, use a #14 wrench to loosen the generator mounting screw a few turns. Then, to remove the belt from the ggenerator, you must first loosen the generator. The generator itself plays the role of tensioning the generator belt, so loosen it first. The two adjustment screws are located on the bottom of the generator. One is the locking screw and the other is the tension adjustment screw. Be careful, use a No. 12 key. After loosening the locking screw, tighten the adjustment screw counterclockwise until it is very loose: loose enough to remove the belt.
This uses a #12 key. After loosening, you can tighten it directly by hand, faster. Once the generator belt is removed, the next step becomes more difficult because the air conditioner belt must be removed. The air conditioning belt tensioner also has two screws, one for locking and one for adjustment. Note that the locking screw is #14 and the adjustment screw is #13. Loosen thelocking screw, then loosen the adjustment screw until it is very loose until the air conditioning belt can be removed. Tighten the adjustment screw. The bearing in the middle of the tensioner wheel is locked with a spring-loaded locking piece and must be tightened with needle-nose pliers. Installation and disassembly are the same method. Use the wooden head from behind, hammer, hammer, hammer, and it will come out easily.
The old bearings are removed and the new ones are assembled for comparison. The one on the left is new, produced by LYC Luoyang Bearing. This old, disassembled bearing can already make a lot of noise when turned by hand. Now is a good time to replace it! First apply a little engine oil to the bearing installation hole, then insert the new bearing a little into the alignment hole: Press in the new bearing. If you don't have a special tool, use this type of wood to avoid damaging the bearing with a hammer: installing the bearingIn place, install the flex board.
Whether it is the air conditioning belt or the water pump belt, first loosen the lock nut, then turn the adjustment bolt (clockwise clockwise to tighten, counterclockwise to loosen). Once the setting is appropriate, tighten the lock). nut. Water pump belt tension standard: A used belt (used for at least 5 minutes) has a deflection of 11.5-13.5mm under a pressure of 98N; a new belt (used for less than 5 minutes) has a deflection of 7-9mm. Air conditioning belt tension standard: A used belt has a deflection of 5.0-6.0mm under a pressure of 98N.
If the diesel generator fan belt is too loose, it will slip, causing the fan speed to decrease.lator and water pump, which will affect the heat dissipation performance of the generator set while being too tight; will also increase wear on the shaft and bearings.