Search For SkidSteer Related Info on The Web 



  We Accept Donations! 

If you enjoy what we have to offer or this site has helped you along the way, please consider a donation to help us defray the cost of development and hosting! Thanks



The safer, easier way to pay online!



  The SkidSteer Forum 

   
Forums Home   Search   Login   Register   Member List  

Bobcat  > Skid Steers  > 743 u joint greasing?  
 
Display using:  
Previous Thread :: Next Thread 
 Author Thread: 743 u joint greasing?
Mikefromcny is not online. Last active: 11/23/2014 8:13:27 AM Mikefromcny
Top 50 Poster
Joined: 13 Nov 2011
Total Posts: 278
 
743 u joint greasing?
Posted: 11/17/2011 06:36 PM
it looks like my 743 has a u joint off the engine as a drive coupling, is there any way to get at it to grease it?

2001 883G 2002 773G 2003 753G Previous Machines: 873F 863F M-610 743 NH L455 JD 70
Tazza is not online. Last active: 11/20/2014 1:48:51 PM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11835
 
Re: 743 u joint greasing?
Posted: 11/17/2011 07:02 PM

Its not fun.

Get an extra long hose for your grease gun and a helper with a spanner on the main pulley nut on the engine. Slowly get your helper to rotate the engine while you have your arm behind the pump with the grease gun while feeling around for the grease nipples.

Its not at all fun, but can be done.


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
jd21476 is not online. Last active: 10/11/2012 5:42:06 PM jd21476
Joined: 30 Oct 2011
Total Posts: 28
 
Re: 743 u joint greasing?
Posted: 11/17/2011 08:25 PM
I'd like to grease mine too but I'm not sure what to look for. Anybody have a pic of what I'm looking for?
Fishfiles is not online. Last active: 2/23/2014 3:44:14 AM Fishfiles
Top 25 Poster
Joined: 09 Feb 2007
Total Posts: 1702
 
Re: 743 u joint greasing?
Posted: 11/18/2011 02:30 AM
there should be 3 grease fittings to grease , a remote starter switch makes the job easy and you can do it by yourself , you do need a long hose on your grease gun or two hoses and coupler to put the two together -------oh ! and small hands are helpful
JD4440 is not online. Last active: 1/16/2012 8:30:35 PM JD4440
Top 100 Poster
Joined: 12 Jun 2009
Total Posts: 80
 
Re: 743 u joint greasing?
Posted: 11/18/2011 09:07 PM
My luck I'd do all that and the fitting wouldn't take grease :-(

Deere 240, Bobcat S185, Bobcat 743, Bobcat V518, Volvo mini-x
jd21476 is not online. Last active: 10/11/2012 5:42:06 PM jd21476
Joined: 30 Oct 2011
Total Posts: 28
 
Re: 743 u joint greasing?
Posted: 11/21/2011 09:18 AM
So I opened it up and can reach back and barely feel the grease fitting. I tried to attach the hose but I just dont have the push necessary to attach the hose firmly because my arm is all bent in a funny way. Any ideas?
jerry is not online. Last active: 11/23/2014 4:17:06 PM jerry
Top 25 Poster
Joined: 03 May 2007
Total Posts: 1813
 
Re: 743 u joint greasing?
Posted: 11/21/2011 10:25 AM
Poke a digital camera back there so you  can see what you are dealing with, it's not fun to grease it but everybody does it.  While you have your hand back there have someone you trust gently rock the engine crank back and forth with a socket and handle so you can feel if there is any slack in the joint.

LX665,backhoe,snowplow,assorted homemade stuff Northeast Mn
mrfixitpaul is not online. Last active: 11/25/2012 4:08:16 PM mrfixitpaul
Top 25 Poster
Joined: 28 Mar 2009
Total Posts: 365
 
Re: 743 u joint greasing?
Posted: 11/21/2011 03:12 PM
And after you have the engine in the position that makes greasing the least painful, mark the crank pulley and engine with a paint marker so next time you just line up the marks.....much easier for when you are working alone.
BobCat is not online. Last active: 7/15/2014 9:03:23 AM BobCat
Top 100 Poster
Joined: 01 Oct 2006
Total Posts: 124
 
Re: 743 u joint greasing?
Posted: 11/25/2011 11:22 AM
I recently acquired a 743 and was wondering how often should I grease the U joint? I greased it when I first got her and it wasn't easy but mission accomplished.
firefrost gold is not online. Last active: 9/11/2012 3:27:24 PM firefrost gold
Joined: 11 Sep 2012
Total Posts: 2
 
Re: 743 u joint greasing?
Posted: 09/11/2012 02:30 PM
can you get to the joint from the back or do you go in from under cab?
Tazza is not online. Last active: 11/20/2014 1:48:51 PM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11835
 
Re: 743 u joint greasing?
Posted: 09/11/2012 02:52 PM
Under the cab. There is no room from the engine side anyway, you have a big blower fan/flywheel there.

Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
firefrost gold is not online. Last active: 9/11/2012 3:27:24 PM firefrost gold
Joined: 11 Sep 2012
Total Posts: 2
 
Re: 743 u joint greasing?
Posted: 09/11/2012 03:27 PM
thanks I have to find a long grease hose any ideas
Tazza is not online. Last active: 11/20/2014 1:48:51 PM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11835
 
Re: 743 u joint greasing?
Posted: 09/11/2012 08:41 PM
I thought you could get extension hoses?

Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
mahans7 is not online. Last active: 6/4/2014 4:31:00 PM mahans7
Top 25 Poster
Joined: 22 Aug 2012
Total Posts: 317
 
Re: 743 u joint greasing?
Posted: 09/12/2012 10:56 AM
Its amazing how many new things I'm finding to do on my new to me 743. I'm sure I'll need to lube mine also since it appears they didn't do a lot of regular maintenance on it. How long a grease gun hose is needed to lube the u joint?

Bobcat 743 with 909 Backhoe. M7
Tazza is not online. Last active: 11/20/2014 1:48:51 PM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11835
 
Re: 743 u joint greasing?
Posted: 09/12/2012 02:26 PM
I think another member has used a double hose, so it was a total of about 1.5'? You really just need it long enough so you can reach the crease nipples and not keep pulling the hose off as you twist the grease gun to pump it full of grease. It's not easy to do, but can be done.

Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
mahans7 is not online. Last active: 6/4/2014 4:31:00 PM mahans7
Top 25 Poster
Joined: 22 Aug 2012
Total Posts: 317
 
Re: 743 u joint greasing?
Posted: 09/12/2012 06:31 PM
Thanks again Tazza. Ed

Bobcat 743 with 909 Backhoe. M7
waggles is not online. Last active: 7/18/2014 12:01:25 AM waggles
Joined: 09 Oct 2009
Total Posts: 84
 
Re: 743 u joint greasing?
Posted: 09/18/2012 03:48 AM
My 743 went 20 yrs with the original u joint, I greased it regularly ,probably too much but it was never a problem. However the grease did tend to mix with dirt and clog the oil cooler and radiator quite a lot. That was the major design flaw with that cooling setup. The 743 is still a good buy with lots of people doing total rebuilds to keep them going.
mahans7 is not online. Last active: 6/4/2014 4:31:00 PM mahans7
Top 25 Poster
Joined: 22 Aug 2012
Total Posts: 317
 
Re: 743 u joint greasing?
Posted: 09/18/2012 02:04 PM
Man you guys absolutely invigorate me. I would change brake pads on my cars with the grease fittings sitting right in front of me and not grease the joint. But now that I see how to unclog and replace the zerk fittings, I'm going to go over my cars and grease them all. I will also be crawling under the 743 to grease that too and inspecting the oil cooler/radiator. My wife has been complaining that I'm spending too much time on here, but then I say look at all the work I've been able to do with the 743 and to our cars because of you guys on this site. Its working so far. Thanks again.

Bobcat 743 with 909 Backhoe. M7
diggerman is not online. Last active: 9/24/2012 6:02:29 PM diggerman
Joined: 22 Sep 2012
Total Posts: 2
 
Re: 743 u joint greasing?
Posted: 09/22/2012 07:24 AM
Am new to forum but info here is great. Greasing this joint is crtical!! I bought a used 743 and hadn't found this forum and didn't knoww about greasing. Needless to say the joint let loose and bent the front input shaft on the hydro pump. Now in process of fixing this. My rcommendation is to pull the motor, which only takes about 2 hours and inspect joint. I have read that some guys have broke the housing on the pump when this lets go.
Mikefromcny is not online. Last active: 11/23/2014 8:13:27 AM Mikefromcny
Top 50 Poster
Joined: 13 Nov 2011
Total Posts: 278
 
Re: 743 u joint greasing?
Posted: 09/22/2012 12:14 PM
Anyway you can tell when its on its way out? Mine seems okay. As far as greasing, I put 36" of hose on my pistol grip grease gun. You really need a pistol grip or another kind of 1 handed grease gun. I put the cab up and and while lying on top of the pumps, chest up against the fuel/hydraulic tanks, reach your right arm with hose into the engine compartment. I think it was easiest having the fittings at 3 o clock. I marked my crank pulley at 12 o clock while doing this so its easier to find next time.

2001 883G 2002 773G 2003 753G Previous Machines: 873F 863F M-610 743 NH L455 JD 70
jerry is not online. Last active: 11/23/2014 4:17:06 PM jerry
Top 25 Poster
Joined: 03 May 2007
Total Posts: 1813
 
Re: 743 u joint greasing?
Posted: 09/22/2012 06:24 PM

You can get your hand back onto the u-joint and have a helper gently rock the engine back and forth  with a socket on the damper pulley. It should not have any hesitation or wiggle between the joints if there is any wear you will feel it.


LX665,backhoe,snowplow,assorted homemade stuff Northeast Mn
reaperman is not online. Last active: 11/23/2014 6:07:18 PM reaperman
Top 50 Poster
Joined: 18 Dec 2011
Total Posts: 212
 
Re: 743 u joint greasing?
Posted: 09/22/2012 07:53 PM
Before my 642 u-joint puked out, the two steering handles were shaking back and forth. Nothing drastic just a noticeable shake. At that time it didnt put 2&2 together and just wrote it off as machine age, I was wrong. It finally let loose about 1/3 mile from home while cutting wood deep in the woods. It sounded like a stick was stuck in the fan blade. I idled it home, and luckily it didnt take out the pump shaft or anything else but the u joint itself. Once it was repaired I couldnt believe how smooth the entire machine seemed to run. Meaning the joint was telling me it was time to grease her the entire time the handles were wobbling. Take note.
wright const is not online. Last active: 2/25/2013 4:37:29 PM wright const
Joined: 01 Jan 2010
Total Posts: 33
 
Re: 743 u joint greasing?
Posted: 09/23/2012 03:16 PM
I told my wife i dropped a 100 bucks down there , I said while your arm is in there stick this on that grease fitting . Worked once, now she tells me were to stick the grease gun.

2004 s185 ,2-2005 s185, s220 high flow ,stump grinder 60 ,4 in 1 , snow pusher,3- 8' plows ,E 60 excavator,2008 s220,deere 450J dozer,cat 312 excavator,mack superliner
Tazza is not online. Last active: 11/20/2014 1:48:51 PM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11835
 
Re: 743 u joint greasing?
Posted: 09/23/2012 08:19 PM

Oh boy, that one cracked me upSmiley

I wouldn't even get my GF that close to the innards of my machine, if there was any talk of cash in there she would want me to get it myself.... Which i feel is a little harsh, but not un-expected.

Totally different story about driving it, she loves taking it for a spin.


Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
KarlB is not online. Last active: 7/12/2014 7:25:24 PM KarlB
Joined: 05 Dec 2011
Total Posts: 54
 
Re: 743 u joint greasing?
Posted: 10/03/2012 07:34 PM
All photos from newy1234. Greatly appreciated. I do hope he doesn't mind I linked to them.

Is this what I'm looking/feeling for?
Photobucket

Using at least this much hose (need to find a coupling or two).
Photobucket

And it really looks like this? I mean, 3 fittings all in a row.
Photobucket

...karl
Tazza is not online. Last active: 11/20/2014 1:48:51 PM Tazza
Top 25 Poster
Forum Moderator
Joined: 08 Dec 2004
Total Posts: 11835
 
Re: 743 u joint greasing?
Posted: 10/03/2012 08:17 PM
That's what you are looking/feeling around for. If it has been worked on in the past, the grease nipples may not be in the same place.

Bobcat 763 burntSadbut i'm working on it!, 04 S150 with air and a smooshed cab, S250 turbo.
BobCat is not online. Last active: 7/15/2014 9:03:23 AM BobCat
Top 100 Poster
Joined: 01 Oct 2006
Total Posts: 124
 
Re: 743 u joint greasing?
Posted: 10/07/2012 05:10 PM
Just greased mine with the cab up laying on top of the hyd pumps going in from the left side. Used regular grease gun with no extension. Held tip onto grease zerk with one hand while pumping with the other. Spent more time finding and aligning them than it took to grease.
Previous Thread :: Next Thread 
Page 1 of 1
 
Forums  > Bobcat  > Skid Steers  > 743 u joint greasing?  
   
(Copyright 2002-2010) Owens Consulting
*
Powered by E-SpiritLink    Terms Of Use    Privacy Statement
Portal engine source code is copyright © 2002-2014 by DotNetNuke. All Rights Reserved