I will assume that you are replacing the belt here. The tensioner has a large bolt on the front of it, find a socket to fit and pull or push, which ever way seems to loosen it for you, they are automatically adjusting so when reapplying the belt just move it out of the way again and slowly release it back onto the belt.
The tension on a 1988 Ford F150 can be loosened by adjusting the belt tensioner. The retaining bolt is loosened, the tensioner shifted slightly, and tightened down.
The easiest way to loosen the tensioner is to use an automatic belt tensioner. This can be used on a serpentine belt which is connected to every pulley on the engine.belt.
You will need to loosen the serpentine belt tensioner pulley on your 2002 Chevrolet Avalanche. Slide the belt tensioner to the right. The serpentine belt will become loose and can be removed. Reverse the process to install the new serpentine belt.
Loosen the tensioner pulley. Pushed the tensioner pulley to the left. The serpentine belt will come loose. Remove the belt. Reverse the process to install the new serpentine belt.
To loosen the belt tensioner on a 2002 Honda CR-V, locate the tensioner pulley and use a socket wrench or a breaker bar to turn the tensioner pulley counterclockwise. This will relieve tension on the serpentine belt, allowing you to remove or replace it. Ensure you have a suitable tool, as the tensioner may require a specific socket size. Always follow safety precautions and refer to the vehicle's manual for specific instructions.
You need to loosen the belt tensioner. There is a large bolt that needs to be loosened in the center of the tensioner pulley. Then the small vertical bolt is turned in the direction to loosen the belt. After the tensioner is loose replace the belt and retension it.
There should be a small square hole near the tensioner pully. A 3/8 socket driver will fit in the hole and then you can losen the tensioner.
Loosen the tensioner pulley. When the tensioner pulley is loose the belt will come off. Put the new belt on and tighten the tensioner pulley.
Loosen the tensioner pulley. The tensioner pulley will slide to the right. This will loosen the alternator belt. So it can be removed.
It's spring loaded, use a wrench or socket to move it. If it's really stuck it may be seized.
Place a breaker bar on the lug/hole on the tensioner; then pry against the tensioner.
The power steering unit and the alternator are both driven by the serpentine belt. Loosen the tensioner pulley and the serpentine belt will become loose. Put the new serpentine belt on and tighten the tensioner pulley.