Problem with DR 13HP Mower

[Matthew Arnold]

We hve noticed this year that our belt seems to be slipping alot more on the lawn deck. We have had the rough deck belt bounce off a few times as well. we aren't using it any differently than last year. We have just ordered new belts as we think the old ones have stretched. Any one else had the same problem?

[ecolojim]

no tensioner on the belt?

[Matthew Arnold]

Got tensioner on both decks, The one on the lawn deck is a self tensioner and moves with the tension of the belt. It bounces around a massive amount which leads me to suspect the belt is too long. and the belt on the rough deck is a constant tension as you can lock it in place.

[Les Cork]

We hve noticed this year that our belt seems to be slipping alot more on the lawn deck. We have had the rough deck belt bounce off a few times as well. we aren't using it any differently than last year. We have just ordered new belts as we think the old ones have stretched. Any one else had the same problem?

 

Hi

there are a few things you can try

check the blades are not dulled as this causes extra wear on your belt

check the pulleys and back idler pully for contamination, de grease and clean right up checking for wear on one side more than the other, if uneven replace the pulley as it will only grab a part of the belt.

Check pitch of belt if it is matched with the pulleys, you could try an Aramid [Kevlar] belt they sit further into the V and are generally stronger.

The spring on the tensioner may have taken a knock.

What size belt in section and inches do you run i.e B75 = 5/8 belt 75" long or 5L x 75".

 

Les

[Matthew Arnold]

Hi

there are a few things you can try

check the blades are not dulled as this causes extra wear on your belt

check the pulleys and back idler pully for contamination, de grease and clean right up checking for wear on one side more than the other, if uneven replace the pulley as it will only grab a part of the belt.

Check pitch of belt if it is matched with the pulleys, you could try an Aramid [Kevlar] belt they sit further into the V and are generally stronger.

The spring on the tensioner may have taken a knock.

What size belt in section and inches do you run i.e B75 = 5/8 belt 75" long or 5L x 75".

 

Les

 

Blades were sharpened 2 weeks ago so should be ok for the summer. Degreased it at the end of the mowing season with a steam pressure washer.

All wear is equal on all pulleys. When we have it on the lowest (2 inch) height the angle of the belt is pulling the belt uphill which is probably why it bounces off so often. 5l x 75. Its gone in today for a weeks worth of work (just niggles and to sort belt bouncing) Apparently its a common problem with our model but it can be resolved with 2 x 1/4" washers.