The alternator is sitting on a guide. It is held on it by a bolt. All you have to do is loosen that bolt and the belt pressure sould realese.
Look around for a wheel that is touching the belt but appears to have no other purpose...this is the tensioner. Use a long handled wrench on the nut in the middle of the tensioner.
there should be a diagram under the hood, in front of the radiator, that will show belt routing and show where the tensioner is...
You can loosen the tension on your alternator belt by loosening the tensioner bolt. When the tensioner bolt is loose you can slide the alternator to the left.
Loosen the tensioner pulley. The tensioner pulley will slide to the right. This will loosen the alternator belt. So it can be removed.
find the tensioner pulley to release the belt. there should be two bolts on the top (one in front, one in rear) and one on the bottom rear ( this one is very tricky to get to).
There are two serpentine belts a/c timing etc. and alternator just release belt tensioner towards front of motor for outer belt and the secnd tensioner is located on the alternator
im going on the assumption that you are referring to the belt back on the tensioner cause there is no reason to remove the tensioner to install an alt. if it is a matter of putting the belt on, make sure that the belt is routed correctly through the pulleys. then remove the belt off the alternator, put the belt on the tensioner THEN pull the tensioner back with a wrench on the tensoiner adjusting nut. slip the belt on the alternator and slowly release the wrench. i hope this was helpful
first unhook the battery, then release the automatic belt tensioner and remove the belt, then unbolt the alternator and disconnect the wiring from the alternator....to reinstall, reverse the removal procedure
Use a tensioner tool or wrech if you can to pull the tensioner so the belt loosens. thread in the new belt and release the tensioner to tighten the belt. Belt diagram is usually in the engine compartment
If it's the timing belt tensioner then you have to loosen the tensioner bolt and then use a 1/4 inch hex bit and turn the tensioner clock wise. Be sure to turn the tensioner only counter clockwise to retension and align the 2 pointers. The alternator or serpentine belt tensioner requires a 13 mm wrench to turn the tensioner counter clockwise to release the tension.
put a wrench on the pulley side of the tensioner (15mm?) and turn. The pulley arm will move & loosen up the belt.
the belt tensioner is mounted to the block if you are trying to change the tensioner tou have to remove the alternator.if you are trying to change the belt it is the pulley to the left of the alternator it takes a 15mm wrench which you have to pull upwards to release tension
To change the alternator drive belt on a Bobcat 853 you start by lifting the cab. With the cab up, you can see the back of the engine and alternator. Locate the belts spring tensioner and release the belt.
use a breaker bar to release pressure on automatic belt tensioner