Thank you for contacting the AnswerARMY.
You are correct with the engine off and the belts in the disengaged position it is designed to be loose enough to be trapped with no drag on the belts. This is NORMAL.
The "rattling" when going up hill is not normal, The transmission will growl as the load increases for example when going up a hill but shouldn't rattle.
If you are going to lubricate the mower deck attachment points use something dry like grahite powder, oil or grease will attract dirt and potentially cause wear on thses points.
Please contact your local Sears service center to have the transmission "rattle" checked out.
Thank you for contacting the AnswerARMY.
You are correct with the engine off and the belts in the disengaged position it is designed to be loose enough to be trapped with no drag on the belts. This is NORMAL.
The "rattling" when going up hill is not normal, The transmission will growl as the load increases for example when going up a hill but shouldn't rattle.
If you are going to lubricate the mower deck attachment points use something dry like grahite powder, oil or grease will attract dirt and potentially cause wear on thses points.
Please contact your local Sears service center to have the transmission "rattle" checked out.