hd6b remote hydraulics
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=83637
Printed Date: 25 Apr 2025 at 3:10pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: hd6b remote hydraulics
Posted By: dustydoo
Subject: hd6b remote hydraulics
Date Posted: 22 Jan 2014 at 6:04am
| Wondering if anyone has ever added rear hydraulics to there dozer or give info on doing so!!! The manual calls for a diverter valve from looking at manual appears that a gate valve should work. I have not figured out where the return line goes? Hope someone can help??? |
Replies:
Posted By: Mactractor
Date Posted: 22 Jan 2014 at 3:18pm
|
Tractors fitted with ripper had a cable operated diverter under the blade lift valve sending flow to either blade valve or rear mounted ripper valve. Ripper valve relief returned oil to t ank via extra ports that came with the diverter setup I think Tractors needing more than one extra valve used the BeeGee type PTO driven rear mounted pump/tank/valve assembly commonly used to run multiple circuits for hydraulic scrapers and agricultral equipment |
Posted By: DMiller
Date Posted: 22 Jan 2014 at 3:42pm
|
Zimmerman tractor in Versailles MO has old Allis crawlers with AG setups and a pump installed where the PTO shaft would exit for the winches. http://www.crawlerbulldozer.com/default.htm |
Posted By: dustydoo
Date Posted: 22 Jan 2014 at 6:06pm
| Thanks for replies,I figured out where the diverter valve is attached and gets its oil supply.The problem I am having is finding a place to return the oil,my oil tank is cast at front of dozer pump is inside casting. there lies my problem no extra ports on casing that I can find. |
Posted By: Mactractor
Date Posted: 22 Jan 2014 at 8:10pm
|
The diverter provides the return port. When that assembly is bolted on where a single blade lift valve would alternatively be, the external valve pressure port is on the left side of the tank valve body, sending that line down the left frame rail. Oil returns from the external valve down the right side frame rail into the port on the four bolt plate on that side of the tank valve body, dumping oil in the top of the tank. Look at a diverter assembly and you will see the return port in the four bolt plate I mention. I have also used the filter port in the tank to return oil to it from a spool valve bank and auxilary tank by welding a pipe elbow to a four bolt plate onto the filter port |
Posted By: dustydoo
Date Posted: 22 Jan 2014 at 8:17pm
| Thanks Mactractor Ive been looking in the book and couldn't figure out the return Any idea where I might find a diverter valve?? |
Posted By: Mactractor
Date Posted: 22 Jan 2014 at 8:39pm
| HD6 tractors that were fitted with rippers. I`m not sure if any of the last production run of tractors had blade tilt cylinders fitted, but if the y did, that would have been another application for the diverter. Tractors on ag work needing only one external circuit would be another. Tractor yards like the one Dave mentioned are the places to go looking |
Posted By: Coke-in-MN
Date Posted: 22 Jan 2014 at 9:56pm
|
A gate valve ? You are dealing with high pressure - a ball valve , or a regular diverter valve , or a proportioning valve to split flow. Also pump capacity needs to be figured , Another way would be to replace present valve with one that allows another spool or power beyond capability. ------------- Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful." |
Posted By: Dozer
Date Posted: 23 Jan 2014 at 8:42am
| My parts book says tank number 625899 for HD6's s/n 11094 and above provises extra ports on the rear of the tank. One of my HD6G's has this tank even though it is a 1956 model because it had a ripper. The tank has an additional spool valve. I wish it still had the ripper. |
Posted By: dustydoo
Date Posted: 24 Jan 2014 at 8:15am
| Thanks for all the help ,I thought the diverter vavle added to the existing valve,hence my confusion. Does any one know what the 3/4 pipe plug in the existing valve is for??? |
Posted By: dustydoo
Date Posted: 02 Mar 2014 at 12:09pm
| Just checked 3/4 pipe thread on left side of lift valve. It has no pressure so might be a return? Anyone know any place else to get pressure? Help!!!!! |
Posted By: Mactractor
Date Posted: 03 Mar 2014 at 11:54pm
| You need a diverter from a tractor salvage yard or change to early HD6 system with tank and valve on right fender feeding front mounted pump (without tank) |
Posted By: DMiller
Date Posted: 04 Mar 2014 at 6:41am
| Could possibly go to a HD6G series tank and valve for a loader, then you would have the functions available with the valving all built together with the reservoir set up for the volume. |
Posted By: dustydoo
Date Posted: 22 Mar 2014 at 8:50am
| Got a diverter valve from a scrap yard dozer. Next question, anyboby have any pics or what have you of the control for the valve . The donor didn't have anything left they had capped the ends going to the rear. Also stem on diverter is leaking ,took it apart cleaned everything ?????????????? |
Posted By: ac_sd
Date Posted: 22 Mar 2014 at 11:15pm
| I would consider just adding a BeeGee pump on the rear for added Hydraulics. Otherwise the early HD-6 setup would be a better bet for adding valving with an HD-6G tank/valving from a loader if you need more valving in place of the dozer unit for a rear ripper. Some folks have done a major rework of the later HD-6 Front Hydraulic setup using a generic valve spool up by the Operator, but it tends to slow the hydraulics. |
Posted By: dustydoo
Date Posted: 23 Mar 2014 at 10:28am
| I got an oem diverter valve . got oil to both ends of dozer just looking for pics or disciption of how the controls are. Don't know if it's cable or rod like the blade control? |
Posted By: ac_sd
Date Posted: 23 Mar 2014 at 6:27pm
| The one I had was a cable running from the top left of the dash bulkhead, down along the right side of the main frame up to the front hydraulic unit. |
Posted By: dustydoo
Date Posted: 23 Mar 2014 at 7:40pm
|
Thanks my dash has an elongated hole lower left. I ran rubber hose since I didnt have the oem tubing, I can see in my manual that there was a pivot on the pressure tube! |
Posted By: dadsdozerhd5b
Date Posted: 24 Mar 2014 at 6:18pm
  these pics show a diverter valve arrangement for a hd5g or hd6g loader, can't remember which. the principle is what I was going to use for my hd5b once I find and can afford the ripper. the diverter valve locks out the other function and holds it there while the ripper is used. you do not need both at the same time so it would work well and just one valve would do the trick. just make sure the ports are big enough. definitely need both circuits as the ripper cylinder is a 2 way cylinder. good luck. ------------- HD5B, HD5G, (2) FARMALL A's, CUB. DO IT RIGHT THE FIRST TIME, IGNORE THE LAUGHTER. FLANNEL IS ALWAYS IN STYLE. |
Posted By: dustydoo
Date Posted: 24 Mar 2014 at 6:46pm
|
Thanks for pics (dads) nice paint. I've got some polishing to get mine to shine like that!!! |
Posted By: dadsdozerhd5b
Date Posted: 25 Mar 2014 at 5:13pm
|
I wish it were mine! that is a loader sitting a museum of a local guy who takes it to shows occasionally, otherwise it sits in a warm museum next to a lot of mack trucks. My loader looks more like rust. I hope someday for it to look like that. ------------- HD5B, HD5G, (2) FARMALL A's, CUB. DO IT RIGHT THE FIRST TIME, IGNORE THE LAUGHTER. FLANNEL IS ALWAYS IN STYLE. |