How much deflection should a belt have?
How much deflection should a belt have?
Force-Deflection Method Measure the span length P. 2. At center of the span length apply a force F (using a belt tension gauge) perpendicular to the belt span, large enough to deflect the belt 1/64” for each 1“ of belt span, q. So, for a 32” span, the deflection amount would be 32/64” or 1/2”.
How do you measure belt deflection?
Force – Deflection Method of belt tensioning:
- Measure the belt span length and calculate the desired deflection distance (1/64” per inch of span length)
- Using a spring scale, press down on the belt in the approximate center of the span, and deflect the belt to the desired level.
Can you over tighten an alternator belt?
Dear Anthony: A belt should never be over-tightened. An over-tightened belt can burn out any bearing that the belt rotates on, including alternator, power steering pump, A/C compressor, idler pulleys, etc. An over-tightened timing belt can ruin any pulley bearing it is connected with.
How much tension should a alternator belt have?
The required measure of tension in the serpentine belt is that it should not deflect more than ½ inch when twisted either way from the middle. If twisted more, the belt is loose, and if twisted less, the belt is too tight.
How do you test a belt tensioner?
An easy way to test the tension of the drive belt is to hold a ruler along a stretch of the belt, then use your thumb and index finger to try to pull the midpoint of the belt away from the ruler. If you can pull the belt more than a half inch from the ruler, it is not tight enough.
How long does a drive belt tensioner last?
Drive belts typically last anywhere between 40,000 and 70,000 miles. There aren’t a lot of warning signs that a drive belt tensioner has hit the end of its lifespan, in fact there is really only one. Once you start to hear a grinding or squeaking sound coming from your engine, it’s time to have the drive belt tensioner looked at.
What is a belt tension gauge?
Belt tension gauges are used to properly check drive belt tension on drive belts to ensure maximum belt and bearing life.
What is a belt tension sensor?
A seat belt tension sensor for measuring the amount of tension in a vehicle seat belt. The seat belt tension sensor has a housing and an anchor plate that is mounted in the housing. The housing moves relative to the anchor plate. A magnet is held by the anchor plate.
