Ca hydraulic pump/ rear oil drain/ fill?
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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=162409
Printed Date: 20 May 2025 at 9:50pm
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Topic: Ca hydraulic pump/ rear oil drain/ fill?
Posted By: Hunt4Allis
Subject: Ca hydraulic pump/ rear oil drain/ fill?
Date Posted: 02 Jul 2019 at 12:33am
| How's best way to know it's all removed from all components in system since it's shared between hydraulic pump and rear end? |
Replies:
Posted By: GregLawlerMinn
Date Posted: 03 Jul 2019 at 1:55pm
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There are 2 pipe plugs; 1 under the tranny and the other behind it ------------- What this country needs is more unemployed politicians-and lawyers. Currently have: 1 D14 and a D15S2. With new owners: 2Bs,9CAs,1WD,2 D12s,5D14s,3D15S2s, 2D17SIVs,D17D,1D19D;1 Unstyled WC |
Posted By: Hunt4Allis
Date Posted: 03 Jul 2019 at 6:36pm
| Ok, those 2 and how does it get out of hydraulic pump? |
Posted By: jaybmiller
Date Posted: 03 Jul 2019 at 6:56pm
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There's 4 or 6 bolts hold it on, I think. Been 5-6 years since I had my CA. You need to get copies of the 'repair manual' BEFORE you proceed. Someone here has them online ! When you do get the pump out, totally clean off your bench, put an OLD white sheet down, get 2 or 3 GOOD lights, have a camera ready THEN tear is apart. It took me 3 'cleanings' to get 50+ years of sludge out of the 'cavities' Be very,VERY careful when removing the springs and check balls !! Them little balls WILL fly away and if, IF, you're lucky sppend less than the 2 hours I did , on hands and knees wondering just WHERE one of them went in the garage....sigh...Finding a little steel ball on a grey floor was 'fun'. It was a fun tractor though ! Jay ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: Hunt4Allis
Date Posted: 06 Jul 2019 at 5:14pm
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Here's where I removed drain plug from( seen from rear- directly in line with PTO shaft) There seem to be a lot of plugs but this one was the one I could get to easiest, b/c of other metal members in way of other hex nuts that appear to be all drain plugs?not sure why so many drain plugs, but it seamed to do the trick... What is the proper steps to the fill?( Do you fill up so far, then run hydraulic pump to prime it, then shut down and fill rest of the way or what's best method?( Never done this before) Thanks Matt 
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Posted By: Hunt4Allis
Date Posted: 06 Jul 2019 at 5:18pm
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jaybmiller wrote:Posted By: Gerald J.
Date Posted: 06 Jul 2019 at 5:32pm
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CA shop manual is at: http://geraldj.networkiowa.com/Trees/Allis-Chalmers-G-B-C-CA-Service.pdf" rel="nofollow - http://geraldj.networkiowa.com/Trees/Allis-Chalmers-G-B-C-CA-Service.pdf Gerald J. |
Posted By: Hunt4Allis
Date Posted: 06 Jul 2019 at 5:36pm
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Hmmm, nothing opening on that for me... I have the manual somewhere just need to find it |
Posted By: jaybmiller
Date Posted: 06 Jul 2019 at 6:20pm
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clickin gon the orange link shuld download the manual..... I now have TWO copies thanks to fat fingeritis ! Now the 'fun' part is FINDING it on your computer.... I got smart years ago and have EVERYTHING get saved to the 'desktop'. Jay ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: Hunt4Allis
Date Posted: 06 Jul 2019 at 8:35pm
Ok, think I drained it via correct plug in picture here but this manual doesn't cover refilling procedure?
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Posted By: Dakota Dave
Date Posted: 07 Jul 2019 at 11:49am
| The rear diff gear box share oil. There is a hasket dam between the two just start filling when it tops the dam is starts running over and filling the hyd pto sump. When its full both haves are full the pump is self priming and has vwry little oil in it. From empty should be about 2 1/2 gallons |
Posted By: Hunt4Allis
Date Posted: 07 Jul 2019 at 12:03pm
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Ok thanks for the info! Is there a place to buy the hoses for all my Allis Chalmers/sickle mower hose needs? Matt |
Posted By: Dakota Dave
Date Posted: 07 Jul 2019 at 7:52pm
| For hoses i take mine to the local John Deere shop they make new ones while i wait. That is the closest place for Me. Many Auto partsplaces make hoses. |
Posted By: Hunt4Allis
Date Posted: 07 Jul 2019 at 10:57pm
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Huh, good to know We have a jd dealer 10 minutes away I'll check with, thanks Matt |
Posted By: JaredC(WI)
Date Posted: 07 Jul 2019 at 11:20pm
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Matt, there's a plug on the pump too. So 3 places to draining from. You can get too it real easy. It's just to the right of your pic on the bottom of the pump itself. The plug on mine needed an Allen wrench. Would assume yours does too. Just did what you are doing to my CA a few weeks ago. Drained it all and put on new hoses. When the pump plug was removed at first just a drop or two came out. Stuck my pinky tip as far as it would go and then a huge glob of......something....plooped out and it drained fully. Got my hoses from an ag equipment repair shop just down the road. Took in the old ones and they made new ones up in about 10 min. My CA s hydraulics are now way quieter and much smoother operating! Don't accidentally break off the elbow connecting your hose to your pump...like I did. Easily removed with an easy-out, but made things take longer than they should have, lol. Take the time to fully remove the tractor platform when changing hoses...it may save you time in the long run :) Jared |
Posted By: Hunt4Allis
Date Posted: 09 Jul 2019 at 10:33am
| So when you replace a hose and all the hydraulic oil comes out of pretty much everything is there a way that you need to bleed the system after you add the new rear differential oil to get all the air out of the cylinders for the three-point? |
Posted By: JaredC(WI)
Date Posted: 09 Jul 2019 at 10:36am
| No. Just run pump/pto and move the arms up and down a number of times. |
Posted By: Hunt4Allis
Date Posted: 09 Jul 2019 at 4:39pm
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Posted By: Hunt4Allis
Date Posted: 10 Jul 2019 at 12:10am
So I replaced the right cylinder hose that was leaking,oil was drained out of plug nearest PTO and Allen bolt in bottom of hydraulic pump, then I put all back together and added 2 gallons of oil through filler cap opening on left side of differential case Started tractor and ran three point system up and down a half dozen times oh, probably had tractor running a total of 2 minutes and everything seemed be working okay there is a little bit of vibration when I raise the 3 point system?( No leaks anywhere) with the tractor still running I open the filler cap and foamy oil try to come out of the filler neck? Is that normal? I'm wondering if I did not get all of the oil drained out of it because it's showing full on the dipstick with only two gallons added and the spec's show 8 and 1/2 quarts which is 2.15 gallons |