Honda HRC7018 Owner's Manual page 79

MAINTENANCE 8, ADJUSTMENTS
Adjust
1. Move the blade control OFF.
2. Remove the belt cover.
3. Remove the blade belt from the right (discharge-side) spindle
pulley.
4. Loosen the tensioner bracket pivot bolt and remove the
bracket positioning bolt.
5. Move the bracket to next position. (The 52" deck has one
alternate position, the 60" deck has two.)
If the spring is less than minimum length with the tensioner in
last position, the belt must be replaced.
6. Install the belt over the right spindle pulley,
7. Install the belt cover.
Replace
1. Remove the belt cover.
2. Loosen the two belt guide pins at the center spindle pulley
and remove the deck belt from the pulley.
3. Remove the blade belt from the right (discharge-side) spindle
pulley, then from the rest of the pulleys.
4. Move the idler pulley to the first position, as shown.
5. Install the belt over the pulleys, right pulley last,
6. Install the deck belt over the center spindle pulley and tighten
the belt guide pins.
7. Install the belt cover.
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