cylinder seal kits for 750 backhoe attachment

jetlag1946 · Sep 26, 2016

My 4500 tractor has a 750 backhoe attachment . The numbers are actually 753 , I'm not sure what the 3 means. The 3 cylinders on the boom have bad leaks . The 2 larger ones are around 4 " piston size and the smaller one is around 3 or 3.5 .I can't seem to find a listing for the seal kits even on the new holland web site . I have replaced those in the past when I lived near a new holland place and got the seals there . I must be putting the wrong info in my searches . Where can I find the seal kits on line listed as for 4500 backhoe or for 750 attachment ?

JoeM(GA) · Sep 26, 2016

see if this will get ya there -
parts book 753

Sean in PA · Sep 26, 2016

750 was both the series of the backhoe and the model for the 10' "basic" backhoe model. The 753 was the 13' model and the 755 was the 15' model. I believe that the feet lengths were the nominal digging depths for the individual models.

For the 753 model, the parts site lists a 4" diameter cylinders for the lift cylinder and the crowd cylinder, and a 3-1/2" cylinder for the bucket cylinder.

The cylinder repair kit for the lift and crowd cylinders is part number 309946, you will need two kits, one for each cylinder. The repair kit for the bucket cylinder is part number 309949.

jetlag1946 · Sep 26, 2016

Thanks Sean in PA , That is great info , I should be able to find the seals now . I have a print out from tractordata.com that only shows the 755 for the 450 and it shows a digging depth 184 " so the figures you have are the digging depths .

jetlag1946 · Sep 26, 2016

Thanks JoeM(GA) I going to click on the site now to check it out .

jetlag1946 · Sep 27, 2016

Thanks guys , I have another question , I found the parts on ebay for the kits 309946 and 309949 . These are new style kits and show for tractors starting with 550 and 1975 . My tractor is a 4500 1967 . Does my tractor use the old style seals or will the new style work in either . It seems the old style seals don't come in a kit and have to buy separate . Also I'm not sure if all the old style seals are available . I didn't want to search for them yet until I found out if I have to have the old style .Thanks Dan

jetlag1946 · Sep 27, 2016

(quoted from post at 07:20:31 09/27/16) Thanks guys , I have another question , I found the parts on ebay for the kits 309946 and 309949 . These are new style kits and show for tractors starting with 550 and 1975 . My tractor is a 4500 1967 . Does my tractor use the old style seals or will the new style work in either . It seems the old style seals don't come in a kit and have to buy separate . Also I'm not sure if all the old style seals are available . I didn't want to search for them yet until I found out if I have to have the old style .Thanks Dan

I studied the info more on the new holland parts . It looks like the only part different in the lift and crowd new kit is part #14 old has been replaced with new #15,16,17 the two metal parts the seals go between are the same #13 and #18 so I assume the new kit will work in the old style . Does this sound correct ? I haven't checked yet but the bucket kit is probably the same way .

cylinder seal kits for 750 backhoe attachment

jetlag1946

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JoeM(GA)

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Sean in PA

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jetlag1946

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