Good question. Did you find an answer?

I have the same problem did you find the issue?

@@jpro747 hi unfortunately no answer. I just use it on 4 and it seems ok

@@rugs108 thanks for quick reply. That’s what I’ve been doing, using it on 4. Have ordered a replacement knob so I’ll let you know if that solves it 👍

part number is F016A58732 www.mowersandspares.co.uk/category/allett-sandringham-14e-cassette-spare-parts/

I just bought a Suffolk punch electric cylinder lawnmower and don't feel the blades are sharp enough is it dear to get them sharpened

Your best bet is probably to just have a look around on eBay

If they are starting to slip...But since your question was over 2 years ago...you have probably changed them now!😀

John Sherrington Just trying to change mine now. Looks easy. How wrong can I be!

So that you can slide out the cog wheel that drives the cartridge. It would be a lot easier for the user to provide a simple dedicated cover.

Try givening a tap with a soft hammer

John Engl have same problem, did you get it sorted?

Push the dial in and twist , and at the same time take the weight off the front roller by pushing down on the rear handle

Chocolate fireguard anybody? ??? Seriously the engineers who put great in Great Britain are turning in their bloody graves! Whilst qualcast/atco/allett are laughing at you gullible fools who bought their latest flimsy contraption! Buy an earlier one from when men were men sheep were nervous and when we had an empire. You'll have far more fun doing it up than dealing with this exercise in blatant carpet baggery writ large.

***** Good question. The fact is that this is British design - some 20 years old - by Qualcast/Atco that has stood the test of time. I have run these mowers for some 15 years -mowing on a weekly basis on a residential lawn, and the mechanism has proved to be reasonably solid and robust. If there is a weakness on this mower mechanism, it is ironically the METAL mounting plate for the gear mech being a bit thin and flimsy. Provided the plate is true, the gears seem to last for ages - I've never had to change a plastic gear. Best not to judge a book by its cover - look at the size and design of the components before commenting. For a domestic mower, I think its a clever (and old) design - especially the QuickChange cassette. Copies the cassette concept of the pro level mowers at a fraction of the price. Pity Qualcast/Atco sold out to the Germans/Italians IMO, and that GB lost a good reputable mower manufacturer.

cloversmate I wouldn't touch the latest qx with a barge pole!

I made the comment about the gear wheel because clearly someone felt the need to make a video about what appears to be a week point in the design of this lawnmower, I'd also read about people having to replace the said gear wheels. In this day and age of making things ever cheaper (mechanically) I just think to pay over a £1,000 and end up with plastic gear wheels is a bit cheap. I have an old Suffolk Punch which is all metal with all the original parts and is still going strong, will the same be able to be said about this mower in thirty years time, I doubt it.

***** definitely with you on that one!