MF 220 backhoe/back actor

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rogern
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MF 220 backhoe/back actor

Post #1 by rogern » Mon Jun 22, 2020 1:00 pm

Hi
I have a MF244 crawler with a MF 220 backhoe
The slew motor needs new paddle seals, does anyone know if there are compatible seals as I cant locate genuine replacements anywhere.
If not is it possible to get new ones made?

The numbers on the body of the Dowty Motor are:
7548 DH 0162 771
1458 960 M91

Thanks in advance


Jeremy Rowland
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Re: MF 220 backhoe/back actor

Post #2 by Jeremy Rowland » Mon Jun 22, 2020 5:20 pm

Roger try somebody like Hayley Group they should be able to supply you with seals or get some made and they are not a million miles from where you live.

Jeremy


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Re: MF 220 backhoe/back actor

Post #3 by rogern » Tue Jun 23, 2020 10:44 am

Thanks Jeremy, will do


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Re: MF 220 backhoe/back actor

Post #4 by essexpete » Tue Jun 23, 2020 4:07 pm

Crikey that takes me back. I did our old 220 over 40 years ago! Have you had the unit apart? The seals, IIRR, are rectangular. I wonder if any of the old massey dealers have any lurking on a dusty shelf.


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rogern
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Re: MF 220 backhoe/back actor

Post #5 by rogern » Tue Jun 23, 2020 4:20 pm

Hi Essexpete
Yes we got it apart and yes the seals on the paddles are rectangular, what does IIRR mean please.
We are having a pig of a time trying to find them
Regards

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Re: MF 220 backhoe/back actor

Post #6 by jcb4cx » Tue Jun 23, 2020 6:54 pm

Try P V Dobson
every village has one , is yours missing you


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Re: MF 220 backhoe/back actor

Post #7 by rogern » Tue Jun 23, 2020 9:19 pm

jcb4x thanks, they have a kit but say its for an MF50, I dont know if the same as ours though


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Re: MF 220 backhoe/back actor

Post #8 by essexpete » Tue Jun 23, 2020 11:01 pm

If I remember rightly!
Perhaps you could get them to measure?


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Re: MF 220 backhoe/back actor

Post #9 by rogern » Wed Jun 24, 2020 12:28 pm

Hi

Anyone know what type of bolts these are, trying to work out how to remove them so I can get the seal out, I cant get at the back of them because they are holding the seal fitting to the main shaft.
Image


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Re: MF 220 backhoe/back actor

Post #10 by essexpete » Wed Jun 24, 2020 1:31 pm

I seem to remember struggling with those. I also seem to rember damaging a paddle slightly but fortunately in a way not to affect the sealing /operation. I remember the seals seemed expensive at the time.
With regard to studs I think I locked two suitable nuts on them and wound them out. (iirr!)
Last edited by essexpete on Wed Jun 24, 2020 10:43 pm, edited 1 time in total.


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