jd440 hydraulic tank drain

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dtoots1
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jd440 hydraulic tank drain

Post by dtoots1 » Tue Dec 19, 2017 12:36 pm

well it is back to 50 degrees today snow about gone... and been trying to get the plug out of the hydraulic tank to drain and replace my 10 weight...and of course it aint amovin and sure snot handy to even get to it....even made a square wrench (hole) for the darn thing....do i dare put heat to it? it is at bottom of tank
and don't know if the mount for the plug is brazed in or what.....can probably get a torch to it. if do heat the mount or the plug itself..which???

blamed thing is a 2 man job ...one to look were wrench at and one to handle it!!
any solutions out there????

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Lavoy
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Re: jd440 hydraulic tank drain

Post by Lavoy » Tue Dec 19, 2017 2:41 pm

The part it threads into is maybe silver soldered in, be careful with heat. Square socket is the best if you can. Put in a new plug if you get it out.
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dtoots1
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Re: jd440 hydraulic tank drain

Post by dtoots1 » Tue Dec 19, 2017 2:49 pm

that is what i was afraid of.....now where can i get a square socket??? and for sure i want a new plug...should be pretty simple to get????

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Lavoy
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Re: jd440 hydraulic tank drain

Post by Lavoy » Tue Dec 19, 2017 3:03 pm

Plus is 1/4" pipe plug. Square sockets I have are Craftsman, but Mac, Snap On, any good tool shop should have them.
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dtoots1
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Re: jd440 hydraulic tank drain

Post by dtoots1 » Tue Dec 19, 2017 8:18 pm

oops mite be a bit bigger than 1/4 in pipe plug....is actually a six way blade on it....i think it was 7/16 in boogered up a bit but still kinda square...ordered a set from ebay 4 male and 4 female in set..hope they works/b here thursday..they claim

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gregjo1948
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Re: jd440 hydraulic tank drain

Post by gregjo1948 » Wed Dec 20, 2017 4:15 am

dtoots1 wrote:
Tue Dec 19, 2017 8:18 pm
oops mite be a bit bigger than 1/4 in pipe plug....is actually a six way blade on it....i think it was 7/16 in boogered up a bit but still kinda square...ordered a set from ebay 4 male and 4 female in set..hope they works/b here thursday..they claim
I don't think Lavoy ment that the wrench size is 1/4". It's a 1/4" PIPE PLUG.
JD 350B diesel w/rops & 6way blade, Case 580B Loader/backhoe, Farmall 504 highcrop, International 404 utility, International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller

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Lavoy
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Re: jd440 hydraulic tank drain

Post by Lavoy » Thu Dec 21, 2017 10:06 am

Correct, should be a 7/16" wrench if it is a square head plug.
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pop pop
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Re: jd440 hydraulic tank drain

Post by pop pop » Thu Dec 21, 2017 2:34 pm

your going about it all wrong toots, just nick a hose and it will pump its guts out, then just fix the hose and refill. :wink:
440icd/602,,, 440icd/831/ripper, misc. 440 parts

dtoots1
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Re: jd440 hydraulic tank drain

Post by dtoots1 » Fri Dec 22, 2017 10:55 am

Sunex tools has the set of 8 ...4 male and 4 female 7/16 1/2 9/16 and 5/8....impact sockets....$50..2 day delvry...now to see what gonna take to get her off....should i flush with kerosene?? looks pretty milky and how does this system get water in ???? condensation????? and have to crack the hose connection at the cylinders to bleed them out?? and make a mess ocourse!!!

dtoots1
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Re: jd440 hydraulic tank drain

Post by dtoots1 » Sun Dec 24, 2017 8:05 am

well it looks like the sunex set aint a'going to do the job yet.....gonna have to get her in garage and get to weld a nut to the boogered plug and then use my rachet/sockets....hope heat from welding is enough to loosen and with nut be able to get her off....i really hate working on the darn thing in the shed on gravel and halfassed wet at that and not one damxxx...bit of room to really even keep eye on the plug and wrench...i'd rather watch a wench!!!

By the way if anyone else gets to tear down and get belly pan off....do the maintenance on the hydraulic while that belly pan is off, obviously i didn't and sure wish i hadda...that was the only oils i did not take care of...

Steven Walters
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Re: jd440 hydraulic tank drain

Post by Steven Walters » Sun Dec 24, 2017 8:38 am

You may want to remove tank. Or drop belly pan. If tank is in good shape drop belly pan, if tank needs any kind of repair pull tank. I have a 430C in shop now, first one to ever work on. I had to replace main shaft from trans to engine, replace all parts for brake and clutch pedal as they where frozen together. And repair left steering quil. So I changed all oils in machine, I had no issues removing drain for Hydrauli tank, and I’m almost certain oil has never ever bin changed. Oil didn’t look like oil anymore it was a cross between 90 weight gear oil and #2 grease. It took about 5 gallons of diesel fuel to flush out clean, I put about 3/4 of a gallon of fuel in each time, remove suction line and stick blow gun down to bottom and stir it up. Repeat till clean, you may want to regulate air down just a bit.

dtoots1
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Re: jd440 hydraulic tank drain

Post by dtoots1 » Sun Dec 24, 2017 9:23 am

got it in garage now....mud all over...maybe can dry a bit.....surely wanted to take tank off and work on it...but that seem like a real job and too much chance of breaking something else...it has inline spin on filter on the hard pipe from the pump and the six way valve/controls right over the top of tank which looks like all should come off....i will look closely at possibility of welding nut to it and being inside taking off back skid plate if gonna require removal....both plates join right at the plug of course....idjits sure coulda used a hole there...if nothing else just to drain the danged thing!!!..mine is just milky looking, will see more when drained.

Steven Walters
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Re: jd440 hydraulic tank drain

Post by Steven Walters » Sun Dec 24, 2017 11:31 am

Run it up on some 6X6 so you have some room under it.

dtoots1
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Re: jd440 hydraulic tank drain

Post by dtoots1 » Wed Dec 27, 2017 4:37 pm

well i had to get the rear skid plate off!!!!.....still could not get it to move with any of my wrenches or the square socket.....
So...i welded a 15/16 nut cause bolt hole big enough to get over the square first weld would not hold it....so back to it again and this time was able to get the booger out....looks like it has a small magnet in the end of it...so i cleaned it up and with the 15/16 nut it will do the job...

I did use diesel to flush it out and blew my long air gun down to agitate.....that dang spin on filter sure was a b....tch to get off....aint no room for leverage...happened to have a diesel fuel filter that fits right on it for now till i can find the proper one....i filled that with my 10w and then filled the hydraulic tank....seems to work ok in garage will see later....still gotta get belly pan back on...

thanks to all

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