1984 Wheel Horse LT-1100 Model A2-11BX01, Toro[?] mower deck [38" 3-blade]. Deck numbers are gone. Closest similar is Toro 05-36XR04 [42"]. I have belt routing, but the belt runs around main pulley, completely enclosed by the main deck mount bracket BRG assy. How to get the belt off/on without removing deck mount flanges & wheel assy? If I’m able to get the pulley set screws off, does the shaft lift out? Also, the idler bar tensioner, Have no clue how to set or adjust idler bar with the new belt. thanx