bobcat 773 hydraulic line from filter to pump (?)

[Coaldust]

I need to find out who made an aluminum suction "stinger" for a pump last week.

Got sent up with paper towels in the ends to keep it clean. Good thing I checked before putting it to use for the customer, was plumb full of metal from them cutting and threading it. Not to mention nothing deburred so was razer sharp. Ripped open a hole in a not even day old set of gloves

Furguson

 

[Welder Dave]

Usually slightly longer is better than shorter but sometimes the factory hoses are too long and can rub on something.

 

[tfran]

Oh man. I didn't even think about that! I should always be checking it and making sure he cleaned it out well before installing!!!

 

[willie59]

Oh man. I didn't even think about that! I should always be checking it and making sure he cleaned it out well before installing!!!

Pretty common for hose shops to cut, crimp, and go. One should at least blow some air through the line to remove heavy debris from assembly. Cat hose shops typically run a cleaning sponge through hose assemblies that they make, but most independent shops don't

 

[Coaldust]

Good thing it goes immediately to the case drain filter.

 

[Welder Dave]

Better shops blow the foam plugs through the hose. Princess Auto even does.

 

[IceHole]

I never thought of doing that. I usually spray solvent or brake clean through them unless I trust they are clean.

 

[bknickol]

TFran, we have a '94 773 and same hose is leaking. Was able to work my hand around behind the motor and get a crowsfoot on it but can't get it to budge. How did you get the hose off? It's a tight fit behind the motor. Looked at taking skidplate off but it appears the skid plate doesn't drop down like we thought/hoped. Any advice is appreciated.

 

[bknickol]

So I got the parts manual for View attachment 314303the 773, and it shows the above (if I have it right). The hose comes off of the right side of the hydrostatic filter, and it goes behind the engine to the middle of the cab area but immediately behind the engine - very hard to reach. And my hose is just one hose, not 2 like they show above. And my hose has the connector like where I pointed the red arrow above (male). Hope this helps.

TFran, we have a '94 773 and same hose is leaking. Was able to work my hand around behind the motor and get a crowsfoot on it but can't get it to budge. How did you get the hose off? It's a tight fit behind the motor. Looked at taking skidplate off but it appears the skid plate doesn't drop down like we thought/hoped. Any advice is appreciated.

 

[tfran]

So it's 2 things right? 1. the connection next to the hydraulic filter and 2. the one by the hydraulic pump (under the seat). For #1, that one was pretty easy. take coolant reservoir off and the plate off etc. To get a wrench to work there tho, I bought an open end wrench (whatever the size was. 17mm? don't remember) that fit, then I ground off one side of it so that I could rotate it far enough. Maybe 1/8". That took care of that one. But for #2, ok, this one was a challenge, yes. First I bought a brand new combination wrench and cut it in half - used the open end. Put it on there, then had my son stand back and with a 5' 2X4 or so, put one end on the stub end of the combination wrench - and my son with a hand sledge hit the 2X4 and it broke it loose. Getting it off then was easy. To put it back on is different. I think I used the stub again and possibly took another large (not cut in half) combination and hooked it over the end and pulled it toward me and it tightened just fine. Either that or was able to use just a combination by itself... good luck.

 

[Welder Dave]

Generally it's a little easier tightening fittings on new hoses than trying to get the old fittings loose. Could be because of the heat cycles and time the fittings have been on. Many "custom" wrenches have been made for getting hyd. fittings off and on. Sometimes you have to take a bunch of other stuff and hoses off to get at the one you need to replace.

 

[bknickol]

Ah, we have been trying to go in from the back and reaching around the motor with a crow's foot wrench, extensions and a socket. Will try coming in the top side. Thanks for the insight. Should be fun. ha.

 

[colson04]

@tfran and @bknickol

Just a heads up when working on your Bobcats. You can look up the part number by serial number for your machine, order it direct from Bobcat online, and have it direct shipped to your door for the same cost as going to your local hydraulic shop. The hoses are exact fit, and some of the odd ball fittings used inside the chassis will no longer be an issue for your hydraulic shop to find. I learned this last year when doing some in depth work on my 753. I have a great local hydraulic shop, but there were 3 fittings used on hoses I wanted to replace that were not any kind of stock item. Odd length/bend tubing built into the fittings. I looked them up and ordered from Bobcats online parts purchase system and the new hoses arrived the next day and were direct replacement. Exact length as original, same fittings, etc. No issues changing them out. If this isn't a rush job, definitely consider Bobcats online system when ordering hoses, parts, etc. Their shipping rates were very reasonable and shipping was fast, though I do live close to one of their distribution centers.