420 fiber plates
420 fiber plates
I'm rebuilding the clutches on my 420, when I removed the fiber and steel plates, the 'fiber' plates are semi metalic, not 'fiber' like I remember seeing on my MC.
Are these the correct fiber plates?
Thank you
Brian
Are these the correct fiber plates?
Thank you
Brian
Re: 420 fiber plates
They work better than the fiber plates - just cost more. Deere offered them as an option with 350 and 450 crawlers - I don't recalled it ever offered for anything older from Deere. But - many aftermarket companies did.BLS wrote:I'm rebuilding the clutches on my 420, when I removed the fiber and steel plates, the 'fiber' plates are semi metalic, not 'fiber' like I remember seeing on my MC.
Are these the correct fiber plates?
Thank you
Brian
Adjustment is no different - a dry clutch works the same - regardless. Big difference is - the metalllic plates dont' soak up moisture like the fiber plates and don't get stuck as easy.
Several other crawler companies made metallic plates standard equipment instead of a high-price option. Allis Chalmers was one of them.
I've put many in 350s (T44128) and can't say I ever noticed any difference. I had a 1010 apart last year and was looking to buy some metallic disks - and couldn't find any.Lavoy wrote:From my experience in a two cylinder or 1010 crawler, the metallic plates are substantially more aggressive than the fiber discs, and the clutch must be adjusted accordingly.
That being said, there is nothing wrong with them, they are just expensive.
Lavoy
What is the different adjustment that you use? You've got me curious. The steering clutch pack has to disengage before the brake grabs -regardless of what it's made of. In our shop - as a general rule of thumb with a Deere crawler was - have the machine pointing up a steep hill in a forward gear - let both steering levers out and start climbing the hill - and then pull both back slowly. If all is right - there should be a short point in their travel where crawler will freely roll backwards, and then pull a little further and it stops. Other than that "free" zone, what do you do with metallics that's different?
Also - do you have a source for metallic disks for 420s to 1010s in place of the M3293T fibers?
The surface is enough more aggressive than the fiber plates, that you have to set them up with less brake. Normally I set them by the book, 1 5/8" from dash, set the throwout there, and set the brake to contact there as well. If you do this with the metallic disks, the engine will bog down, and it will struggle to steer. If you set them the same way you describe on the 350's, you should not have any trouble.
I do not stock them, but I can get them. I have not priced them lately, but seems to me they are double if not triple the price of fiber discs. I guess if you are in a high moisture area and/or have trouble with sticking/growing fibers, then the extra cost would be well worth it.
Lavoy
I do not stock them, but I can get them. I have not priced them lately, but seems to me they are double if not triple the price of fiber discs. I guess if you are in a high moisture area and/or have trouble with sticking/growing fibers, then the extra cost would be well worth it.
Lavoy
Lavoy, JD,
What effect does oil have on them? Just burn off if they slip enough? I realise that you still have the break band that is fiberous and you do need good oil control and that if you don't have good oil control you have other problems.
Chuck
What effect does oil have on them? Just burn off if they slip enough? I realise that you still have the break band that is fiberous and you do need good oil control and that if you don't have good oil control you have other problems.
Chuck
1960 440ICD #461094 w/ #63 manual blade Converted to a gas engine two owners ago.
The O.E.M. metallic disks from Deere or Allis Chalmers are not porous. But . . . since Deere never made any metallic disks for 2 cylinder crawlers that I've ever seen (in life or in the parts book) - the only ones out there are aftermarket - so it depends on what you have and who made them. Deere offered the metallic disks as a factory option for 350 and 450 crawlers. Allis Chalmers - after a certain serial-number range - used only metallic on all the H4s, HD4s, 653s, etc. - and only furnishes metallic to retrofit on the older H and HD3s.CELSESSER wrote:Lavoy,
I was referring to what effect the oil has on the metalic "fibers" . Are they porous also?
Chuck
Deere , Allis ,and International Harvester ,got most of the clutches made by the same manufacturer Auburn Clutch made for them When I was at Allis I was there at the Plant .I forget where That plant was though when I was there they were making only John Deere parts at that spesific time .We were geting some clutches built for Italian build 5040 ,5050 garbage . They were blowing the clutches coming off the boat ! Auburn Clutch built new clutches for Allis so the tractors could even move .I didn't have much to do with the Allis Tractor division but this is one thing I did for them .Digitup.
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