Kevin18

Well Mr Google suggests 45.72 which sound an awful lot, best stick to something I understand!

Thanks Spudulike, Gareth. No ID on the links other than KMC. I think my next move is to try to confirm that my machine is a 56 or 48. I find it difficult to belive that I have always thought this was a 56 when maybe it isnt!! When I bought it it was as a 56. I which had had the whole mower here now as I cut measure the blade. I have measured the roller and it is 18inches wide. Does anyone know if that confirms one or the other? Thanks

Hi Gareth. No I am a keen cyclist & I can confirm the chain is a far heavier construction than I have ever seen on a bike. KMC do make bike chains however.

Thanks for your reply Derek. I must admit you have me thinking now. Unfortunately the problem happened in France & I have only brought the roller home. I wonder if the rollers are different in width & as such would confirm the model. The chain in images does appear to match mine. I didn’t think I have ever had a 48 but maybe I have!

Hi. I wonder if someone can help me identfy which drive chain I need for my old Hayter 56. It is an old model with the drive coming from the side to a pully and then a belt to the real roller. It lost drive and when I investgated the drive chain appears so loose that it rides up the edge of the small cog and jams stopping the drive instantly. In doing so it has caused a couple of burrs on the teeth of that cog. My problem is identfying which chain I need. The label has long gone from the mower. All the chains advertised on line seem to have 40 links whereas mine only has 15. It is 7.5 in long when stretched as far as possible and the links are 3/8th wide. The only ID on the actual chain is the brand KMC. I am hopeful to be able to file the burrs off the cogs but possibly replace those also. Thanks in anticipation

Apologies gentlemen. That's exactly what happened. I was looking at the hole in the middle of the pin. I have now ordered a second. I did say I was enjoying it in the past tense!! Thanks again

No ID sticker unfortunately

While I agree with you and have found the back pin using that part number the front one is tiny compared with the back one. I have measured the remains of the back pin using calipers and it is 3/16 as per the part number but the hole for the front pin is no more than half that size!

Thank you so much for your advice. The pin at the pully end is missing completely . I have managed remove the rear pin. The small piece that was protruding broke off like a biscuit from which I conclude it wasn't attached to the rest of the pin. I took off the exhaust and turned the shaft to a quarter to three and managed to knock the remains of the pin out sideways. I am now about to buy the new pins. The only thing is I noted that the front pin is much smaller than the back. I guess I just buy a box of assorted sizes? Thanks again. PS I am rather enjoying this!

Thank you for your reply. I have looked and there appears to be a hole near the pully where I suspect one pin should be and I can feel maybe 3mm of what must be the other pin protruding from the shaft. I assume then that it has sheared and the protruding 3mm is what is left of the pin The inner pin sits very close to the engine and looks difficult to get at. Would you suggest I remove the engine to replace it or is there an alternative. Thanks

First of all please excuse my ignorance as I know very little about mowers. I have been using this machine for years and until now it has never let me down. The symptoms are that it has lost 90% of its drive and it happened suddenly. The drive belt is intact and if I lift the rear roller it can be seen to be going round. I have removed the plastic casing and exposed the shaft that comes from the side of the base of the engine. This shaft has a pully on the end which in turn has the drive belt. I assume that the shaft/pully should turn all the time. However when I put the mower into drive I only have to hold the mower back slightly for the shaft and pully to stop turning. I assume that is not right? Any ideas what is the cause of this and do I need to go shopping for a new mower!! Thanks