Cub Lo Boy 154 Mower Deck

Can any one tell me what size belts the mower deck requires? It has one long belt running from the PTO to the center of the deck, and two shorter belts from the center pulley to the outside pulleys. Also, how do you adjust the tension on the two smaller belts?

I don't know about the belt sizes, but to adjust tension on the short belts, loosen & slide the idler pulleys.

Thank you for the information regarding adjusting the tension. I wondered if that was how it was done.

I was able to get the belts from Messicks in Elizabethtown, PA. I got them mounted this evening and am ready to mow tomorrow. Hope the rain holds off.