Move a pulley
Technically,Yes. But realistically no. They are both drive belts, but the term drive belt is normally what is referred to as a non-serpentine belt. This term is used to distinguish between the two type belts. A drive belt tension must be adjusted manually, whereas a serpentine belt tension is controlled by a tensioner.
No, the serpentine belt is used to drive more than one thing and tension is automatically adjust by way of a spring loaded idler pulley. Normally it will drive the alternator, power steering pump, & A/C compressor. A drive belt normally drives only one thing and tension is manually adjusted. A serpentine belt is wider that a drive belt and is not a V-Belt like a drive belt.
If your vehicle has a serpentine belt that is used to drive the accessories ( alternator , air conditioning compressor , power steering , etcetera ) the serpentine belt has a spring loaded tensioner that is supposed to keep the proper tension on the belt ( if it is working correctly )
Most likely there is a spring loaded device called a belt tensioner. There is a pulley on it with a bolt or square inset in it. sometime a socket or 3/8" drive extention can be used to move the pulley and release the tension on the belt.
The tension of a drive belt on a Peugeot Partner Diesel Van can be determined by using a tension gauge, which can be used to measure and adjust the beltÃ?s tension. To replace the belt, open the hood, remove the screws to the air filter cover, and then remove the filter. Next you will need to remove the engine cover and begin to remove the starter. You will need to have the vehicle raised to gain access to the belt and may need to remove other parts to get a clear reach.
There are a few different ways to adjust the drive belt or V-belt tension in a vehicle. The most popular used nowadays is a serpentine belt that connects to and activates every pulley in the engine. These serpentine belts require no tension adjustment as they incorporate an automatic belt tensioner. This type of tensioner has an internal pre-set spring and applies the correct amount of tension to the belt. Some older vehicles and some imports may use a combination of V-belts and serpentine belts in offset pulleys still controlled by the crankshaft pulley. Most often, there are belt tensioners on these vehicles that allow proper tension to be adjusted.
The serpentine belt tension is not adjustable. It is set by a spring loaded idler pully. "Idler" just means that it is not used to drive anything. It is spring loaded to tension the belt and control belt position. The bracket for the idler pully has a square hole in it that is used to compress the spring during belt installation or removal. You can put a 1/2" drive ratchet or breaker bar in the square opening and apply pressure against the spring to remove the old belt or install a new one. Ratchets and breaker bars are normally used with a socket to loosen nuts, but no socket is required to use them in the idler pully bracket. If your belt is making noise or looks loose it probably needs to be replaced. Typical belt life is 3-5 years. The tension is set with an automatic tensioner. It must be replaced.
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Belt Tensioner All engines use an automatic drive belt tensioner. On the 7.5L engine, there are two belts; one uses the automatic tensioner, while the alternator belt requires periodic tensioning. On all belts using an automatic tensioner, no adjustment is necessary because the tensioner adjusts for belt wear. To adjust the tension on the 7,5L engine alternator belt, loosen the adjusting bolts and rotate the alternator until the proper tension is on the drive belt and tighten the adjusting bolts. It is recommended that the belt tension indicator mark be inspected with the engine OFF at 60,000 mile (96,000 km) intervals. If the wear indicator mark is out of specification, the drive belt is worn or an incorrect drive belt has been installed. The 4.6L, 5.4L, 6.8L, all have one belt and one belt tensioner. Look at the diagram on top of the radiator or somewhere in the engine compartment. 1/2" ratchet / or 1/2" beaker bar will do the trick.
A guide pulley helps to change the direction of a moving belt or cable, while a tension pulley is used to maintain the proper tension in the belt or cable.
If you are talking about the tension-er for a car or truck... and you have the original device then it is just a matter of replacing the bracket and or nuts/bolts. For some there is an attached hex-head or square drive that is used to relieve tension while reinstalling the belt, when released it will apply appropriate pressure to the belt. Note: Do a search on "Installing a serpentine belt" and you will see some videos that will give you and idea.
I used a breaker bar for the tension pulley to relieve the tension to remove the belt, I think there are three bolts that hold the tension pulley on, just remove them and reverse the procedure to install. Follow the diagram that is either on the inside of the hood or on the radiator cover on how to thread the belt back on the pulleys.