Mountfield R 28M Ride-on-Mower Belt Replacement, confused with part number. Please help

sujsuj

I am in the process to replace Mountfield R 28M Ride-on-Mower Belt as engine works but its not rotating the blades .
I did research to understand part number to order it but now getting confused with Part number.

My understanding was  Mountfield R 28M got only one belt, but part list shows 2 similar belts unable to identify which one is to order!

As I mentioned issue is engine is working and and mower moves but the blades are not rotated I found belt which is tapered cross section is damaged and its not rotating the pulleys that it should move to get blade rotate.

When I looked at part list it mentioned 2 belts, now which one i should be ordering..?

• 135061407/1 Named as  Belt shown as part of Transmission Assembly section Found this link for this Transmission belt https://www.mowers-online.co.uk/mountfield-stiga-transmission-belt-ax31-135061407-1

• 135061423/0 & 135061423/0G  Named as  Belt shown as part of Blades Engagement Assembly section

Confused which one i need to order now..? Please help  Thanks

Section62

sujsuj said:

I am in the process to replace Mountfield R 28M Ride-on-Mower Belt as engine works but its not rotating the blades .

Why do you think the problem is caused by a drive belt?  Is it broken?  Do you have the bits?

Bendy_House

It's a bleedin' 'mare. And, when you do find the right part, you'll get charge silly money for what is a standard drive belt - some are asking around £50 for this! Nuts.

I'd guess that it's the latter belt - as it appears to be driving the 'deck' and not the transmission (the 'mission will be the wheels, presumably).

Some of the sales partic's show the belt's dimensions, so that could be another way to go - get it from eBay according to the belt size.

Or, this co sells them for around £20 - fairly reasonable in the scheme of things. And they also have an email addy to confirm that it's the actual belt you need: https://www.allmowerparts.co.uk/mountfield-1328h-deck-drive-belt-2015-2021-replaces-part-number-1350614230g-48118-p.asp

Apodemus

Perhaps a silly question...but at this time in the year, do you not have the luxury of time to remove the old belt, so that you can measure it and buy a generic belt of the same size?  Or better still, take the belt along to your nearest mower repair place and ask for a belt "like this".

sujsuj

Section62 said:

sujsuj said:

I am in the process to replace Mountfield R 28M Ride-on-Mower Belt as engine works but its not rotating the blades .

Why do you think the problem is caused by a drive belt?  Is it broken?  Do you have the bits?

As you can see form pics current state of this belt is very bad. part of belt is completely disintegrated and I managed to removed belt from its place without much issue. I couldn't find any code on the belt so may have to find replacement wuth hekp of its length etc. Thanks

sujsuj

Bendy_House said:

It's a bleedin' 'mare. And, when you do find the right part, you'll get charge silly money for what is a standard drive belt - some are asking around £50 for this! Nuts.

I'd guess that it's the latter belt - as it appears to be driving the 'deck' and not the transmission (the 'mission will be the wheels, presumably).

Some of the sales partic's show the belt's dimensions, so that could be another way to go - get it from eBay according to the belt size.

Or, this co sells them for around £20 - fairly reasonable in the scheme of things. And they also have an email addy to confirm that it's the actual belt you need: https://www.allmowerparts.co.uk/mountfield-1328h-deck-drive-belt-2015-2021-replaces-part-number-1350614230g-48118-p.asp

As you can see the pic, I managed to remove belt from the pulley as it was damaged. I can see belt is of 130cm length and tapered shape to fit in the pulley. Ride-on Mower still moves, but when I engage blade its not rotating the blade instead  pulleys keep on rotation on one side but unable to rotate the blades. 

sujsuj

Apodemus said:

Perhaps a silly question...but at this time in the year, do you not have the luxury of time to remove the old belt, so that you can measure it and buy a generic belt of the same size?  Or better still, take the belt along to your nearest mower repair place and ask for a belt "like this".

Yes, right questions. but trouble I have is to transport ride-on mower to a service center. I am hoping in coming days I will get a better day were I can repair this.

Section62

sujsuj said:

Section62 said:

sujsuj said:

I am in the process to replace Mountfield R 28M Ride-on-Mower Belt as engine works but its not rotating the blades .

Why do you think the problem is caused by a drive belt?  Is it broken?  Do you have the bits?

As you can see form pics current state of this belt is very bad. part of belt is completely disintegrated and I managed to removed belt from its place without much issue. I couldn't find any code on the belt so may have to find replacement wuth hekp of its length etc. Thanks

Before fitting a new belt you need to figure out what has done that damage to the existing one.  That isn't normal wear and tear.  A new one might look very similar very quickly if you don't fix the underlying problem first.

Apodemus

sujsuj said:

Apodemus said:

Perhaps a silly question...but at this time in the year, do you not have the luxury of time to remove the old belt, so that you can measure it and buy a generic belt of the same size?  Or better still, take the belt along to your nearest mower repair place and ask for a belt "like this".

Yes, right questions. but trouble I have is to transport ride-on mower to a service center. I am hoping in coming days I will get a better day were I can repair this.

I'm still not sure I understand the dilemma?  I was suggesting you just take the old belt to somewhere that sells belts, so that you can compare them and buy something reasonably close in appearance.

I've seen old belts that look like that, so I'm not conviced that you have any greater problem than an old worn drive-belt.  If a replacement shreds after a while, then you may have to look deeper into the issue, but for now, I'd just replace the belt and listen carefully for any noise of mis-aligned or loose pulley-wheels or bearings.

And if you take the belt to the parts counter of the repair shop, they will have seen enough old belts to be able to pass comment on whether it is typical wear, or if not, suggest likely causes/fixes.

Bendy_House

sujsuj said:

Bendy_House said:

It's a bleedin' 'mare. And, when you do find the right part, you'll get charge silly money for what is a standard drive belt - some are asking around £50 for this! Nuts.

I'd guess that it's the latter belt - as it appears to be driving the 'deck' and not the transmission (the 'mission will be the wheels, presumably).

Some of the sales partic's show the belt's dimensions, so that could be another way to go - get it from eBay according to the belt size.

Or, this co sells them for around £20 - fairly reasonable in the scheme of things. And they also have an email addy to confirm that it's the actual belt you need: https://www.allmowerparts.co.uk/mountfield-1328h-deck-drive-belt-2015-2021-replaces-part-number-1350614230g-48118-p.asp

As you can see the pic, I managed to remove belt from the pulley as it was damaged. I can see belt is of 130cm length and tapered shape to fit in the pulley. Ride-on Mower still moves, but when I engage blade its not rotating the blade instead  pulleys keep on rotation on one side but unable to rotate the blades. 

How did you measure the belt? This can be very awkward, and surprisingly tricky to bet an accurate measurement.

I'd suggest a good method could be with a non-stretchy tape such as 'masking'. Wrap it around the outside, mark the overlap, peel it off, replace it when halfway done to ensure it hasn't stretched, and continue to remove. If it has stretched, then replace it again when it's been almost fully removed, and remark the overlap. When you remove it again, there 'should' be little additional stretch, and the tape will anyway be less sticky. Measure the tape length.

Then examine the belt edge along its widest (out) side. Does this widest part have wear on its two sides? Ie, do you think the WHOLE belt may have worn in to the 'V'-groove of the pulley? Or, can you see a wear ridge just under that outside widest part?

Anyhoo, measure the max width carefully, and note wear as suggested.

Finally (tho' it's often not referred to), measure the thickness of the belt, at a point that's least damaged.

Let us know these measurements, and ideally some close-up pics of the belt at its best part, side-on, focussing on the top edge area.

From what you say, this IS clearly the blade/deck drive belt.

Bendy_House

Q - when you try and spin the unbelted blade by hand, does it turn easily and smoothly?

(Of course, I don't know if it has a brake on it when it's not running?)