My 45 will not keep plww from falling
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=29746
Printed Date: 04 Mar 2025 at 2:37pm
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Topic: My 45 will not keep plww from falling
Posted By: orangeman Ia
Subject: My 45 will not keep plww from falling
Date Posted: 25 Apr 2011 at 4:44pm
| Was plowing yesterday with the 3-16 on my 45, everything worked great. I went to another field, and couldn't keep the plow from going down. The only way I could keep it up was to have the lever all the way up, but the hydraulic was running. What adjustments do I need to do? Thank you. |
Replies:
Posted By: DrAllis
Date Posted: 25 Apr 2011 at 5:23pm
| Normal....if the pump is set for "Traction-Booster" control you do not have a "hold" position and have to leave the lever up. |
Posted By: Rfdeere
Date Posted: 25 Apr 2011 at 5:40pm
|
DrAllis, I have to disagree. It should hold the plow up at the detent position. ------------- Randy Freshour,Member Indiana AC Partners, http://www.rumelyallis.com" rel="nofollow - http://www.rumelyallis.com |
Posted By: DrAllis
Date Posted: 25 Apr 2011 at 5:42pm
| There is no "detent" position when set for TractionBooster control....yes, you can pull the lever maybe to the halfway point, but there is no "hold" position. |
Posted By: Rfdeere
Date Posted: 25 Apr 2011 at 5:46pm
|
My 45 has a detent when set for traction booster ? ------------- Randy Freshour,Member Indiana AC Partners, http://www.rumelyallis.com" rel="nofollow - http://www.rumelyallis.com |
Posted By: DrAllis
Date Posted: 25 Apr 2011 at 5:49pm
| Youe better read the decal on the the side of your battery box again. I could be wrong ( it's been 40 years since I changed one) but I don't think so. |
Posted By: Don(MO)
Date Posted: 25 Apr 2011 at 6:52pm
This might help.
  ------------- 3 WD45's with power steering,G,D15 fork lift,D19, W-Speed Patrol, "A" Gleaner with a 330 corn head,"66" combine,roto-baler, and lots of Snap Coupler implements to make them work for their keep. |
Posted By: wheatbreeder
Date Posted: 25 Apr 2011 at 7:40pm
|
my guess your first field did not require tb the second was lighter soil and the plow wanted to deep and tb was not set compensate for the require draft I agree with Dr allis Wheatbreeder ------------- Farm stuff 8050,6690,175,F2,5050,WD |
Posted By: Auntwayne
Date Posted: 25 Apr 2011 at 7:49pm
| I just want to state the obvious, have you checked the fluid level ? |
Posted By: DrAllis
Date Posted: 25 Apr 2011 at 7:53pm
| On page 30, step #4 should read ..."set hand lever at the BOTTOM of quadrant"........this has been a misprint for 60 plus years. |
Posted By: JoeO(CMO)
Date Posted: 25 Apr 2011 at 8:20pm
|
Listen to DrAllis, he is telling it like it is. ------------- |
Posted By: SHAMELESS
Date Posted: 25 Apr 2011 at 10:24pm
| also...if you are using a one way cyl, check the vent, the oil may be slipping by inside the cly... is so, the oil will be coming out the vent. |
Posted By: Steve M C/IL
Date Posted: 25 Apr 2011 at 10:50pm
| You only THINK you have a detent when set for TB...NO WAY!Absolutely no hold positon in traction booster setting and travel requires lever all the way up!The Dr is correct. |
Posted By: Brian Jasper co. Ia
Date Posted: 26 Apr 2011 at 6:50am
|
Doesn't the beaming screw on the plow regulate the depth, and not the traction booster sysyem? ------------- "Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford |
Posted By: Brian F(IL)
Date Posted: 26 Apr 2011 at 8:01am
|
Even when my lever is all the way up (i.e. traveling down the road), the lift arms have a tendency to drop down after a minute or so. I then have to slow down, lower plow, and then raise it all the way back up. On long trips, I just use cylinder stops on the lift rams to keep the arms from dropping.
Of course the tractor is 58 years old and I'm not aware of the pump ever being worked on so maybe there is a seal or o-ring that needs to be replaced.
|
Posted By: Steve M C/IL
Date Posted: 26 Apr 2011 at 8:18am
| Brian Iowa-yes,Brian Illinois you are right about settling down with time.A quick drop of the lever about 1/2 way down and back up seemed to catch mine back up. |
Posted By: Butch(OH)
Date Posted: 26 Apr 2011 at 9:41am
|
Its realy not all as complicated as some make of it. The Dr is correct in that when set for drawbar control you dont have a hold position in the technical sense. Why? Because the hold valve is connected to the lift lowering section of the pump ONLY. The drawbar control or traction booster section as it is reffered to in the manuals is run by the last plunger on the pump and it is not internaly plumbed to the hold valve, thus it works independantly of it. However, by fiddleing with the lift lower lever a person can achieive some semblance of "hold". What is happening is you are balancing the volume of traction booster section pumping against the hold valve dumping. Have you noticed that your hitches raise a lot faster in the drawbar control mode than when in hold?? Why? because you have another pump section working when so set. The detent is a seperate deal not linked hydraulicaly to the pump or valve. It's just a mechanical stopping point for the lever, that's it. Look at two disks you lock together or seperate with crew "B" The outside disk moves with the lift lower lever. the inside one is the detent, that simple. So it is possibe to have a detent in the lift lower lever while set for drawbar control but dont confuse that with a hold, its nothing of the sort. Now If the linkage is set just so-so, and the detent is at the balance point I spoke of earlier it might kind of hold there but I wouldnt want to make my living getting them so set, LOL. Your drawbar control cannot work correctly with the detent working period, it just isnt possible. Hope this has helped and not added to the confusion. Its a whole lot eaier to show someone how the external adjustents affect the action of the hitch than to write them out. |
Posted By: Lester
Date Posted: 26 Apr 2011 at 11:11am
| Dr. Allis is right, there is no detent. |