TEAC model A1500 tape recorder

What i did to solve this problem on my A-1500 was to remove the tension arm, the pinch roller and the front face holding screws , pull off the rubber faces from the reel hubs and remove them, remove the front metal face plate... in back remove the wood backing panel... inside the deck rear, remove, (without letting them fall into the mechanism) 4 screws that anchor the heavy front cast piece that holds the capstan flywheel...carefully lift the cast piece that holds the flywheel. away from the deck face just enough to allow the old belt be removed, and the new one installed...ensure the belt is installed and goes all around the flywheel..and is not pinched when you push the casting back against the deck face and reinstall the 4 rear anchor screws. place the belt around the upper drive motor pulley wheel.. small diameter part on motor pulley and large diameter part on flywheel for users of 60 hz. Ensure 60hz is selected on switch..or 50hz if that is what you need.(for 50hz ensure belt is on large motor pulley part and smaller flywheel diameter part. with deck lying down or leaning, place a few drops of light lube oil into the felt at the bearing hole for the flywheel. Give the deck a test playback before completely reassembling and putting all the parts back where they were.