1) unscrew the 4 faceplate screws
2) Remove the tape head cover
3) Unscrew the pause lever knob (reversed thread)
3) Remove the 2 mounting pins for the tape head cover (these unscrew)
5) Slide off faceplate
6) Unscrew the capstan holder (see pictures)
7) The flywheel drops down
8) Slide off old drive belt by hooking it through the hole
9) Drop new belt through the hole and over the tape drive pully
10) Replace capstan holder and screw it up to re-mount the flywheel
11) That's it your done