The belt keeps coming off my flymo. but it don't look stretched. any other explanation for why this keeps happening

Typically that will happen when your drive belt has stretched and you can no longer adjust out the additional length. Purchase a new belt and install it and the issue should go away.

Semper Fi,
Z

Your question is in the video game consoles categories???
If you actually have a Flymo 360 lawnmower you will find a link below to the users manual. However I looked at the manual and it appears to be direct drive ie. no belt. http://www.flymo.com/ddoc/flyo/flyo2012_gben/flyo2012_gben__a505284803.pdf

It shouldent come off if it is the tensioners not working or broken there should only be about a couple of cm play when you press the belt or its stretched to the point even yhe tensioners not tight enough to keep it on

You changed the belt that drives the brushroll, it is a flat stretch belt. The V belt also should be replaced every year or two max. It will not be stretched out like the flat belt but with normal use the side of the v will of wear off and the belt will be a little thinner which can cause it to slip on the pulley. The V belt drives the transmission. The flat belt goes from the transmission to drive the brushroll. The burning smell could come from the V belt if it's slipping real bad.

The fact that it happens when turning would lead me to believe that it is the power steering belt. Check your belts for tension, cracks, glazed and any other condition that would warrant replacement. If to much deflection when checking the belts at the longest stretch of belt adjust the belt.

Could be a slipping or stretched alternator belt...don't let this get you stranded...the alternator may not be fully charging when this light comes on...You can have the alternator tested for free at many parts stores...while still installed on your motor. Hope this helps.

The belt on the motor shaft is probably slipping off. I have the same problem and that's what I saw when I opened the vacuum. I keep putting the belt back, but it slips off again. The belts aren't supposed to stretch. I am going to call Sebo and take mine to an authorized service place to make sure that it is just a stretched belt.

There is a bulletin (or recall depending on your mileage) for this issue. The timing chain stretches due to lack of oil lubrication. The acadia engine is very sensitive to timing chain stretch. There are 2 things they will do. The first is a reprogram to let the PCM adjust for minimal extra slack, they will say to drive it and if it doesn't come back on you're good just keep up with the oil changes (5k miles or less with dexos oil). If that doesn't work they will have to drop your engine and replace all 3 timing chains. It's an all day event and may even take an extra day.

A belt will come off for several reasons.:

Wrong size or stretched... should be changed ever 3-6 months.

Misaligned pulley on brush or idler pulley on 2 belt unit

Misaligned motor.. this is rare

Put in a fresh matching genuine belt and keep a spare handy. Belts stretch and slip long before they break

Replace the disc.