Yes you need a wrench to loosen the tensioner and then release the belt slowly from the bolt in the top of alternator after that you would need a long and strong screwdriver (crowbar) to release it from the pulley it self. Do not forget to draw the diagram of how the belt serpentine around the pulley.
Serpentine puller
put a wrench on the tensioner pully and pull it to release tension on the belt
To tighten the serpentine belt on a 1992 Mercedes-Benz SL 500, first locate the tensioner pulley. Use a wrench or a socket to rotate the tensioner counterclockwise, which will relieve tension on the belt. Once the belt is in place, release the tensioner to apply tension to the belt. Ensure the belt is properly aligned and securely seated on all pulleys before starting the engine.
To relieve serpentine belt tension you need to use a Rachet arm or Breaker bar, the longer the better. (Many parts stores, such as Auto Zone will let you use their special tool made just for this purpose.) Fit the 3/8 square drive tip into a hole in the bracket which is attached to the Tension pulley. Once you insert the drive tip into the matching hole, simply turn the ratchet or breaker bar until the pulley rotates and releases the tension.
To replace the tensioner pulley on a Mercedes Benz 190E, first, disconnect the negative battery terminal for safety. Then, relieve the tension on the serpentine belt using a wrench on the tensioner arm and remove the belt. Next, unbolt the old tensioner pulley from its mounting bracket and replace it with the new pulley. Finally, reinstall the serpentine belt, ensuring proper routing, and reconnect the battery.
You need a 1/2" ratchet or a Johnson bar. The idler pulley has a square 1/2" hole that the square on the ratchet will fit in and allow you to turn the pulley and relieve the tension.
one of the pullies that doesn't drive anything will have a bolt head in the center, turn this counterclockwise, and as you do so, the tesion will be removed. as soon as you let tension of the socket however, the tension will be re-instated.
To loosen the serpentine belt tensioner on a 1993 Chevy Silverado, you'll need to use a wrench or ratchet on the tensioner bolt. Turn the tensioner counterclockwise to relieve tension on the belt. Once the tension is relieved, you can remove the serpentine belt from the pulleys. Make sure to note the belt routing for reinstallation.
Relieve the tension by putting a wrench on the tensioner and then remove the belt. www.trailvoy.com all the answers for your Trailblazer from true enthusiasts!
Using a 15mm wrench, turn the bolt in the center of the idler pulley clockwise to relieve tension and remove the belt.
To replace the tension pulley on a 1998 Oldsmobile Regency, start by disconnecting the negative battery terminal to ensure safety. Use a wrench to relieve tension on the serpentine belt by turning the tensioner pulley, then remove the belt from the tension pulley. Unscrew the mounting bolts securing the tension pulley and replace it with the new one. Finally, reinstall the serpentine belt and reconnect the battery terminal.
The tension on a serpentine belt is automatically set by the Idler Tension Pulley. If you find it is not correctly setting the tension, the the spring may be broken.