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941 hydrualic hose removal help

941 hydrualic hose removal help

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wlf89
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trying to get the hose on my 941 that supplies the dump cylinders, it goes from the inside of the tilt cylinder down to under the frame next to the floorboard. its hard to get 2 hands in there to the bolts but finally got all the nuts loose but one of the bolts is froze stuck inside the couplings. any tips as to how yall would go about removing it, i didnt have my breaker bar with me but couldnt budge it with ratchet, could get a half way decent hit on it with sledge hammer but it didnt budge. all i can think of is hope a breaker bar and good 6pt socket will get it broke loose or maybe find me something about 3ft long and stick up thru there to hit with hammer from underneath. also should this not be a split shell clamp holding the rubber hose on it kinda feels solid.

[attachment=44776]IMG_20170920_185413763.jpg[/attachment]
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Fri, Sep 22, 2017 12:32 AM
ccjersey
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It may require heating with a torch and then using your 3' long drift. Don't think heating the coupling where the bolt runs through would hurt anything other than the o-ring in the flange that can be easily replaced.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄
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Fri, Sep 22, 2017 5:04 AM
Deas Plant.
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Reply to ccjersey:
It may require heating with a torch and then using your 3' long drift. Don't think heating the coupling where the bolt runs through would hurt anything other than the o-ring in the flange that can be easily replaced.
Hi, Wlf89.
I would be very surprised if they were not split clamps on that connection but they may be split diagonally with the split around the bolt on the left where it can't be seen in that photo. I think I would want to take the whole clamp completely off and make sure the mating faces are clean before reassembly.

Dumb suggestion - when putting those bolts back in, coat the whole length of the bolt with Coppercote/Neverseize or similar to help prevent them sticking in the hole again. You may never have to take them out again but somebody may thank you somewhere down the track.

Re getting the bolt out - 'persistence' is often the handiest tool to use, with 'innovation' coming a close second. As ccjersey said, about all the heat would damage would like be the O-ring - no biggie - unless you don't happen to have a spare one a bit less than a day's drive away.

Just my 0.02.

You have a wonderful day. Best wishes. Deas Plant.

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Fri, Sep 22, 2017 5:37 AM
ccjersey
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I had a thought...........I have been told by several people that an air impact driver works really well on stuff like that. they claim it will vibrate stuck pins loose that you cannot drive out with hammer and punch.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄
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Fri, Sep 22, 2017 6:18 PM
Deas Plant.
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Reply to ccjersey:
I had a thought...........I have been told by several people that an air impact driver works really well on stuff like that. they claim it will vibrate stuck pins loose that you cannot drive out with hammer and punch.
Hi, Ccjersey.
The thought of using an air or electric 'rattle gun' on that bolt occurred to me as I was writing my past post but I suspect that it might be rather hard to get one in there. It might be worth looking into whether it would be possible to get a small jackhammer in there from underneath with a long moil in it to try doing the same thing that Wlf89 said he was thinking of trying with a hammer and a long bar, attacking it from the bottom.

Just my 0.02.

You have a wonderful day. Best wishes. Deas Plant.

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Fri, Sep 22, 2017 7:29 PM
wlf89
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Reply to Deas Plant.:
Hi, Ccjersey.
The thought of using an air or electric 'rattle gun' on that bolt occurred to me as I was writing my past post but I suspect that it might be rather hard to get one in there. It might be worth looking into whether it would be possible to get a small jackhammer in there from underneath with a long moil in it to try doing the same thing that Wlf89 said he was thinking of trying with a hammer and a long bar, attacking it from the bottom.

Just my 0.02.
i finally got around to working to trying to get the hose off today with no luck, i heated it up red hot a couple of times and have beat and beat on it with no luck. i have turned it some with ratchet but pretty sure its just the bolt twisting and fixing to break. anymore ideas? im not sure where the hoses are leading to from the block im working on they are hidden under the floor board, but looking like im gonna have to see if can unhook them and pull the whole thing out and work on it.
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Sun, Oct 22, 2017 8:11 AM
Old Magnet
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Reply to wlf89:
i finally got around to working to trying to get the hose off today with no luck, i heated it up red hot a couple of times and have beat and beat on it with no luck. i have turned it some with ratchet but pretty sure its just the bolt twisting and fixing to break. anymore ideas? im not sure where the hoses are leading to from the block im working on they are hidden under the floor board, but looking like im gonna have to see if can unhook them and pull the whole thing out and work on it.
Not going to be easy but here is where the lines go. Agree your going to need to remove the assembly to get at those stacked connections. I don't know your s/n but the parts diagrams seem pretty much alike.
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Sun, Oct 22, 2017 1:22 PM
wlf89
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Reply to Old Magnet:
Not going to be easy but here is where the lines go. Agree your going to need to remove the assembly to get at those stacked connections. I don't know your s/n but the parts diagrams seem pretty much alike.
ok so today i took the other connections loose but i still cant them out because the whole assembly wont fit thru the little hole and cant get them turned sideways for lack of room to move the hose going to the tank up and down. looking like might just have to cut the whole damn thing out and replace the hose and 2 tubes (one leads to the tank and the other across to the left cylinder) so does anyone have or know where i might find these 2 tubes, 6k7445 and 6k7518 if it comes down to doing that.
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Fri, Oct 27, 2017 1:40 AM
Old Magnet
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Reply to wlf89:
ok so today i took the other connections loose but i still cant them out because the whole assembly wont fit thru the little hole and cant get them turned sideways for lack of room to move the hose going to the tank up and down. looking like might just have to cut the whole damn thing out and replace the hose and 2 tubes (one leads to the tank and the other across to the left cylinder) so does anyone have or know where i might find these 2 tubes, 6k7445 and 6k7518 if it comes down to doing that.
Plug those part numbers into a parts search on www.machinerytrader.com. They both seem to be available.
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Fri, Oct 27, 2017 1:57 AM
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