Backhoe sluggish moving

   / sluggish moving #1  

vdollhopf

New member
Joined
Mar 26, 2010
Messages
13
I have just gotten a 1972 Ford 3000 industrial backhoe it has a shuttle shift, when I first start it it takes about 5 minutes before it will move I have been told that the pickup filter is plugged, also told that it is in the bottom of the transmission, I have found no such filter, there are no tubes etc in the transmission, it is a four speed, that I can find I have not drained it completely. the only thing under the transmission is the drain plug. any one have any ideas??
 
   / sluggish moving #2  
I dont know anything about this particular machine but shuttles are usually gear sets, manually or hydraulic select (different clutches each gear) with hydraulic applied clutch for forward reverse. Maybe wrong fluid in it, 80/90 gear oil rather than hydraulic. My wrenching experience, gear oil has a different smell, unique stink so you should be able to smell on dipstick if you know the smell. Do other hydraulics operate well at cold start or are they dead too? Cold oil, low flow, maybe bypassing before anything can get to servo to apply the proper clutches.... Good Luck
 
   / sluggish moving
  • Thread Starter
#3  
Has proper oil in per the local tractor dealer everything else works ok, M&M classic tractor are the one that thing it may be the pickup filter which I can not find.
 
   / sluggish moving #4  
Note that the transmission and the power shuttle are two different things. The transmission will use gear oil, the shuttle will be another unit directly behind the engine. It should have a dip stick to check the oil level. It takes hyd. oil. It will have its own drain plug. While cold, pull the drain plug and check the oil. If it has water in it, the water will go to the bottom when cold. If the fluid is grey and has foam, drain and replace it.
 
   / sluggish moving
  • Thread Starter
#5  
No dip stick only drain plug is on bottom of trans. at a lost at this time, after it warms up it works fairly well but not like I think it should.
 
   / sluggish moving #6  
I am trying to find a parts diag. on that tractor. It appears that the power shutter and transmission may be one unit.
 
   / sluggish moving #7  
almost like the oil is too thick and has to get hot. It should be hyd. oil. I can not find a parts diag. on line. Is there any chance that they put the wrong oil in it? If you plan on keeping the tractor, it might pay to get a service manual. I still see some online.
 
   / sluggish moving
  • Thread Starter
#8  
found a manual on line but it only shows a 4 speed trans. says nothing about the shuttle. it has hydro oil in it. The only drain plug is under the trans with a fill check plug on the side, none under the shuttle, I was told by M&M classic tractor that they are one unit with a filter between the two on the bottom in the pickup line I can not find such a line or filter.
 
   / sluggish moving
  • Thread Starter
#9  
the filter according to them in under the gears I can not find it
 
   / sluggish moving #10  
If when warm it operates OK then I wouldn't expect it to be a filter issue. Sounds to me like a viscosity issue. I have ZERO understanding of this tractor. How do the hydraulics (loader, 3pt etc.) operate when the trans is cranky?
 
   / sluggish moving
  • Thread Starter
#12  
After it warms up trans works ok, everything else works when I first start it. I am going to try changing fluid if it not raining in the afternoon and see if that helps. thank for your help
 
   / sluggish moving
  • Thread Starter
#13  
I am going to try to change the fluid when this rain gets out of here and hope that it helps thank for you info
 
   / sluggish moving #14  
Don't know where you're located but yeah we all can use some drying out time! :eek:
 
   / sluggish moving
  • Thread Starter
#15  
Thanks for all the help I am going to try changing the fluid and see if that helps as soon as the rains get out of here thank you again
 
   / sluggish moving
  • Thread Starter
#16  
Checked the trans fluid at the full plug it looked ok, but I still drained it and it was about 1/2 water instead of oil, it now starts moving as soon as i start it, The guy I bought this backhoe from said he changed all the filters but looks like not the fluids, the main hydo system was over half water also. changed it also. thanks for all your help
 
   / sluggish moving #17  
Nothing like a happy ending.
Glad all is well.
Have a great week.
 
   / sluggish moving
  • Thread Starter
#18  
Still having trouble with it moving at first start up the parts layout shows a filter in the shuttle shift area I was told that if water was in the system the the filter would be glazed over causing the trouble and possibly the bump is going bad. Any one know if the filter in the shuttle pick up can be changed with out parting the tractor? This is not the filter behind the grill.
 
   / sluggish moving
  • Thread Starter
#19  
Well I have broken the machine apart and found a paper type filter in stead of a screen in the pickup housing, it was full of junk, next the clutches are so bad that the tractor prats supplier in my area never saw any that badly burned, the Torque converter rattles, the out side of the pump the shaft that the converter goes on is badly scared. So I am having to replace just about all of the parts in the shuttle shift. I also found out why the person I got the machine from had trans locked in 1st gear. the shift ring for 2nd and 4th is missing.One thing that videos do not show or tell you when you go to take the valve body out of the trans that you must remove the two tubes going to the large connectors for the lines to the external filter, I ended up bending one of them before I realized that they had to come out first. Most of the info on breaking this unit apart are missing many key items of information.
 
   / sluggish moving
  • Thread Starter
#20  
Also I found out that all of the repairs would not have been needed if I had only broke it apart and took the pick up screen out and cleaned it it was completely plugged. It also showed signs that it had been back flushed several time s since the inside of the screen was about 1/4 full of junk that could only have gotten into it by back flushing the system which appears to be a quick but shot time fix. If you think your pick up screen it plugged it is cheaper to brake the machine apart and clean it properly It is located just behind the valve body and can only gotten too by taking the valve body off.
 

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