?differential woes

[Daz 0]

Hi - i have a '68 simplicity soverign 3012 this week i took her to the small engine shop to have the tiller belts replaced as they were worn (& i did not have the time to do) i also asked them to do a general maintenance (greese and oil change) when i got her back it now makes a very high pitched screeming sound when running (in gears 1-3 and R). this sound stops when idelling or when in gear but not moving any suggestions as to what is wrong and what i can do to fix cheers Daz

[Mick14 0]

Have you checked the fluids yourself ? they may have drained them and "forgot" to refill . I would definitly be talking to that shop about this.

[Daz 0]

Manty thanks Micky - yes i checked and fluid came out - so i asume they completly refilled- any idea as to lubricant volume? cheers Daz:)

[John_RI 3]

Do you know where the sound is coming from? Also, do you know if 90 weight gear oil was put into the bevel gear box & transmission?

[HubbardRA 19]

John, Listen closely to each of the idlers on the unit. I have had bad idler bearings which were wearing belts and the belts were slipping. When I installed a new belt, which didn't slip on the idler any more, I heard the idler bearing squealing. The bearing would still turn freely by hand with no load on it, but did feel rough when I re-checked it carefully. Fixed the main drive idler on one of my tractors last summer for this very reason. My point is that I didn't hear the squealing of the idler bearing till I replaced the belt.

[Daz 0]

Thanks guys- in relation to the posts - i don't know what grade/weight of oil was used - but am asuming as the mower business services all types of ride on they would have followed the manufacturers directions (as i supplied them with the owners/repair manual) in relation to the idler possibly causing the noise - i'm unsure as after hearing the screaming noise when mving the tractor out of my drive to the back shed i did not even play with the tiller - so i suppose my question here is : if it is is the idler bearing -how will i know - ie is it obvious -- i will try to record the sound over the weekend (tomorrow) and hopefully be able to post the sound file to this site for you to hear as it may give you more of an indication many thanks for the assistance so far - especially when not many dealers down under have heard of simplicity and i have so far not tracked down another similiar unit

[Roy 0]

Hello Daz down under, Suggestion: Push the clutch in while the engine is turned off. Then turn the idler pulley by hand to see if it is smooth or rough. You can do the same with the tiller idler pulleys if you take the drive belt off first. If a pulley is rough or hard to turn it will make noise. Let us know the results of your tests. Cheers,

[Daz 0]

Hi all over the weekend i had a good look at the old girl and this is what i've noticed Fluids all appear ok (filled) the tractor when not going or in gear when rolled makes a clunk or grinding noise as the tractor is pushed (forward/reverse) and when in gear and running makes the screaming noise - it appears to be coming from the rear ? transmission (the big black box between the 2 rear tyres) i could not get my computer to record so can't attach sound file so any suggestions much appreciated