Another to look at https://www.amazon.co.uk/Cobra-Genuine-M51SPB-Lawnmower-26300244801/dp/B07D9PTPZX if you have Prime
That exact holder with the oval retainer lugs is often imaged in searches for Hecht mowers, a clone of Cobra mowers. Frustratingly, parts seem confined to sales in the Czech Republic, and Switzerland, as I had been trying to obtain well priced parts for a Cobra, and they wouldn't deliver here. Delivery from UK sources for Cobra also rare since brexit.
Can I suggest that the holder is not so badly damaged that you couldn't repair it. A decent application of a cold chisel and hammer will reform the lug protrusions to mate with the blade holes. Fix the holder to the blade off the mower with a suitable nut and bolt and tighten down with the blade holes aligned over the holder nipples. Place on the jaws of a vice and whack the ovals edges with a 10-15 mm cold chisel to reform the metal down into the blade holes. A mm or two protrusion is all you need. The holder plate is mild steel, so will take a good whack without splitting. I'd assumed the plate had came away from the shaft in the first photo, my bad, but it appears to be still all in one piece?
I see several entries on the Woodies site for that holder, same picture for different mowers sizes, I'm guessing its the same. Delivery only, €10 +€5 postage
https://www.woodies.ie/catalogsearch/results?query=Blade+adapter
Steel blade boss, fits many brands, cobra, Husqvarna, Mountfield, Hyundai
Atkins best price, but out of stock
Woodies themselves seem to have one for the smaller 42cm mower but looks the same https://www.woodies.ie/replacement-blade-adaptor-kit-for-pro-lawn-lawnmower?gclid=Cj0KCQjwi7GnBhDXARIsAFLvH4ltm0CUwIiH1l3RhPjZuaFcseV0ASNxCZuGNhemRfcYb_RqXWEpF1AaAh5fEALw_wcB
There's also a universal 22mm from lawnmowerpartsonline.ie which uses friction washers to grip the blade, no lugs. Pricey.
Hi all
Appreciate some advice about a replacement blade adaptor.
So I’ve a ‘pro lawn’ 51cm petrol lawnmower - a woodies special from 10 years ago. B&S 675EX engine. They no longer sell them and woodies have been less than helpful, no reply from the company
It’s been through the wars and owes me nothing. But I’ve hit the blade off something and caused the nipples on the blade adaptor to be damaged so I need a new blade adaptor and while I’m at it I was hoping for one that would suit a common blade type (Oregon or something similar).
I contacted a lawnmower parts shop and the (very helpful) chap I was dealing with said that they blade adaptors are lawnmower specific. I’m not sure why I’m finding this hard to accept. I know there’s different types but I would’ve thought there’d be one I could find that would work.
It fits into a 21.8mm (⅞ inch) crankshaft and has a 4.7mm flywheel key. Pictures attached.
Really appreciate any help or guidance. Seems an awful shame not to be able to repair this and I really don’t have the money for another lawnmower. Thanks all.
I reckon you're right Deezell. It wasn't a solid blade I was using at the time but one of those fixed heads where you insert pre-cut lengths of line. The line is very thick so the same principle applies that you mentioned, when it goes from spinning freely at full revs to suddenly hitting a resistant object there is going to be an impact. Especially if the tip of the line locks around a slender object such as a hogweed stump, which is what I think happened.
Great conversation. It would seem to reinforce my belief that that gearheads on the cheaper strimmers, or maybe I should say cheap replacement gearheads, are definitely at risk from an impact strike. The energy stored when the blade is spinning at full revs unloaded is considerable, stopping this blade dead against a root or a thick branch transfers all this to the casing and gears, which will spilt a poorly manufactured product. Perhaps your Stihl spun the blade on the shaft a few times from impact, until it loosened the grip of the bolt and thrust plate/washer. Good news anyway.
For the past few years I was using one of those cheap 43cc machines under the brand name Parker. The original gearhead broke when using the very same mulching bar that you linked to above. I then went through several cheap replacement gearheads off Amazon which never lasted long, maybe that's when I posted about the issue, I can't remember to be honest.
Needless to say, of course I stop as soon as anything gets wrapped around the head of the strimmer. I decided to invest in the Stihl rather than buying another cheap gearhead every couple of months, the problem was with the replacement gearheads not with the Parker strimmer.
Anyways, the latest twist is that it turns out the Stihl gearhead isn't broken after all. I was using it with this head when it suddenly stopped spinning when put against the growth.
So I presumed that once again it was a broken gearhead. When Deezell said you could get individual parts for the gearhead if I could identify which bit was broken I decided to have a closer look today. I couldn't identify any break so I put the whole thing back together, put on a regular line spool and it worked fine. So I've no idea why the other head above stopped working unless the retaining nut loosened, although I didn't notice that it seemed loose when taking it off.
I've read about your issues before with strimmer gearheads. I've done masses of work with all sorts of strimmers and never damaged the bevel gears. I have had issue with the casing on one, but that is a well know fault and mostly fixed with a jubilee clip. I did several weeks really rough work last year with a bramble head https://www.amazon.co.uk/295504-0-Universal-Mulching-Brushcutter-Husqvarna/dp/B00RZH0V4G/ on a cheap 5yo chinese 43cc machine and did it no harm.
So what exactly are you doing to damage them? I assume you aren't running it with material wrapped around the top of the head (tends to melt the head in bad cases rather than damage the bevel gears but can burn up the grease quickly) and top the gear grease up occasionally?
Yeah I think you're right, I'll go with smallengineparts. The one I found on Amazon which will fit works out around €30 and might well end up breaking after a couple of uses. So better of paying €60 to smallengineparts for one that's better made and might last a reasonable length of time.
I'd recommend smallengineparts.ie, it's an Irish company, it's less likely to be total Chinese shyte, they would sell these to people with serious price strimmers like yourself, and you would have a warranty as a non commercial use customer. Other respected Irish parts sellers like Atkins, Forest & Garde, sell these as specific Stihl replacements, (though it fits other brands), and charge around €90+, so the one I linked is well priced. Amazon doesn't necessarily mean quality, many products are just 'drop mail' suppliers for Ali sources.
Thanks Deezell. Those prices are making me think I might just get a cheap Chinese one off Amazon after all!
Thank you for this - interesting to note I felt that the brake pedal seems off someway and not operating properly when I tried earlier so I guess that’s the issue some how and that aligns with your guidance above
will take a closer look at it tomorrow
cheers for the advice
page 34. There are two microswitches which will break the power to the starter, seat and brake pedal (or gear neutral on manual transmission). There are two fuses on a fuse holder, item 12, forward of the steering, a 10a and a 25a. Check these. Check the battery connectors also. If the front lights still work with ignition on but no start, then battery connection is ok, so then it can only be connectors, fuses, starter switch or solenoid.
good catch I should have clarified I checked that out already
Hi there Stiga 5092 owner, hoping someone can help. What are the sensors/safety features that prohibit starting the mower? I must have knocked something out as I Cant start it and by start I mean the engine doesn’t even turn for the last few days. It was going fine and when I stopped I couldn’t restart it
So my thinking was some sensor or safety feature must be effected any advice?
thanks I’m advance
Fwiw, the parts list itemised individual parts for the head, so if you have the original, it could be repairable (though only if a cheap part broken), casing alone £80 odd.
£211for OEM UK price! Yikes.
https://www.lsengineers.co.uk/gearhead-stihl-part-no-4137-640-0100.html
I find these good for parts. €60 delivered, still pricey for what it is (Stihl pricey?)
https://eurosmallengineparts.ie/stihl-fs89-fs90-fs91-fs94-fs111-fs130-fs131-trimmer-gearbox
The gearhead of my Stihl fs94 strimmer just broke on me. I'm well used to this happening with the cheap brand strimmer that I have and the whole idea behind forking out the money for a more reputable brand was to avoid buying replacement gearheads of Amazon every couple of months. So not very happy at all that it has happened with the Stihl now as well, I wouldn't mind but it wasn't particularly heavy stuff that I was strimming when it broke.
Anyways could anybody please reccommend somewhere I might get a new generic gearhead which will fit, without having to hand over an extortionate sum for a genuine Stihl one. Trying to avoid Amazon as the last gearhead I ordered from there didn't fit and then trying to return it to UK is not worth the hassle.
I bought a new bar and chain and a bar oil gasket for my heavily used proplus chainsaw. I went up to the depot to the spares counter, not to Chadwicks where I bought it many many years ago. It was considerably cheaper also than buying the parts at random on the Internet, I probably got trade price, I sort of look the part, dusty and grubby. They won't chase you out if you ever needed to get parts.
I have a generic version of that strimmer, straight pole, geared head, 43cc, I think it was badged McCullogh, its yellow anyway. I have it maybe 15 years or more, can't remember. I've went through 100s of metres of cord. Its hammering away still, only ever broke the guard, which I glued 'n screwed, and replaced the petrol flow and return tubes, which perished with age. I'm strimming around a 3.5 acre site in total, 1 acre is a small forest, plenty of work for it, but I dislike the brushcutter blade, rarely use it. I'll use a petrol hedgetrimmer bar for thick stuff, and the chainsaw for the bigger bits. I'd say you won't go wrong with Worx one, ask them who the distributors are for parts. For that little money it will owe you nothing after 3 or 4 years.
Edit: I never buy parts for my Viking (now Stihl) tractor mower from Stihl, prices are eye watering.
Thanks that makes a lot of sense. The only worry I have with the ProPlus is that I can't see parts listed for sale on any of the websites or the distributor's website - would it be a case of calling them directly? For Stihl, Husqvarna etc I see parts listed on various websites.
I've no doubt they're mechanically identical to a point. Such tools are often referred to as Generic or Pattern parts designs, made in multiple guises in multiple places. It or it's components could be made in China, India, anywhere, from a sophisticated factory to a back street workshop. Final assembly and quality control will to some extent depend on the brand badge, who may pay more attention to quality control if they're trying to build a brand reputation.
If backup is important, the Proplus does have a real depot. I've no idea who actually makes either or where, they are most likely a global commodity product which a distributor can order in batches of 1000s with whatever name you want stickered on it, and with perhaps some choice in quality of manufacture and life expectancy reflected in the ex-works price.
I recall my 'Industrial studies' college lectures from 50 years ago, when it was explained how you might purchase huge lots of equipment with a given % of failure built in depending on price. You distributed them straight out to the retailers and had sufficient stock to replace warranty fails under your % fail margin. Parts and repairs? Phht. The disposable tech era is far from new. If you want something with a multiple year warranty, and parts availability from a real manufacturer for the next 20 years, be prepared to pay big bucks. The proplus is overpriced imo, but they've build a following over the years, so they can charge what the customer is willing to pay for a nominally budget item, and not what it's really worth. Capitalism, you gotta love it!
Thanks - when I reverse image search it I see that the same image is used for the "GardenWorx" brand on a lot of Irish websites, but sold even cheaper. The specs and description seem identical. Any ideas if they are the same?
https://www.smythshomevalue.ie/products/gardenworx-petrol-brushcutter-43cc-double-handle-straight-shaft
Even cheaper here:
https://www.keanscm.ie/products/gardenworx-petrol-brushcutter-43cc-double-handle-straight-shaft
This Pro Plus 43cc strimmer with straight shaft and geared head and double handle (not to be confused with woodies Pro Lawn brand) is available in most real hardware / builders stores, and is backed up by a distributors with full parts stock, McLoughlinsRS, https://mcl.ie/
Price varies, the link is one if the better prices offered.
That did seem far to good a price for the Titan. I don't have it but its a generic chinese one that is in 95% of parts identical to many others and I have one that is the same apart from the plastic covers. You'll notice they all have the same range of engine sizes. The parts are mostly generic and often available on Amazon. Bevel box, carb, magneto etc are all generic. The bevel box will be threaded to take one of many different heads if you need to replace the line head.
Apologies for the confusion, I would need it for more heavy-duty work clearing areas out.
The Titan branded petrol ones in Screwfix appear to be out of stock nationwide. I was looking at a model in Woodies but it appears that there are no spare parts available for them when they go wrong or need a service.
Did you just want something for lawn edging? Sorry just not sure with the way it's worded.
https://www.screwfix.ie/p/titan-ttl530gbc-43cc-straight-shaft-petrol-brushcutter/61145 ?
I would not be too sure about scrap yards being too busy, at least ordinary car scrapyards. EV's require special treatment from day one, so I suppose the end of life EV's will require an even more complicated procedure.( and therefore more expensive )
Any recommendations for a petrol strimmer? I have no idea where to start but it would be a for more than just a small bit of edging on the lawn. I was hoping to keep it under €250 but it seems like €400 is the starting point in local shops for serviceable brands.
