I have a Sears 42 " mower 15.5 HP and need a diagram for Deck belt and drive belt. I've completed the task on first attempt, but when I start the engine with all controls in neutral the mower deck engages and the blades begin turning. Were may have I gone wrong when installing the belts. I Think I need a clear large print diagram. or could it be a minor adjustment needed.

Thanks for your assistance and knowledge
donaldworth

Get the model number off the mower and go to the Sears parts web site and you can find the owners manual in pdf form that you can print which will show you what you need.

Hope this helps