HD 21A TO THE ALLIS CHALMERS COLLECTION
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=177730
Printed Date: 20 Aug 2025 at 8:11am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD 21A TO THE ALLIS CHALMERS COLLECTION
Posted By: AC Mel
Subject: HD 21A TO THE ALLIS CHALMERS COLLECTION
Date Posted: 22 Jan 2021 at 11:56am
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So we really have not been slackin that bad in the collection mode. We've been working on a couple of HD21s for some time. [TUBE]pKHf2egtvAA[/TUBE]
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Replies:
Posted By: CAL(KS)
Date Posted: 22 Jan 2021 at 12:37pm
Glad to know you guys are still at it out there. ------------- Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15 |
Posted By: DMiller
Date Posted: 22 Jan 2021 at 1:18pm
| Same here Cal, Nice to see machines moving Mel!! |
Posted By: JohnColo
Date Posted: 22 Jan 2021 at 11:53pm
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It doesn't look like you are going to run out of projects in the near future! |
Posted By: tadams(OH)
Date Posted: 23 Jan 2021 at 2:09pm
| It'll be good to hear it run again, at least the tracks are rusted tight |
Posted By: Mikez
Date Posted: 23 Jan 2021 at 10:49pm
| keep saving these old girls. Nice new piece to the collection. |
Posted By: Gerry D17
Date Posted: 24 Jan 2021 at 9:54am
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Hi, was the blade and riper up. If not how did you raise them and keep them up ? |
Posted By: AC Mel
Date Posted: 24 Jan 2021 at 10:26pm
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Thanks guys.....So while daughter Amy was videoing and taking photos...she caught an issue that needs explaining... [TUBE]b9nH7h3lmJw[/TUBE] So the previous owner...John Reyes...explained to me that...while they had a fleet of these HD21s working...this little Cat D6 wouldn't get out of the way....one of his guys accidentally crunched him from behind...munched it all up in there in the front and the blade is all that's showing!  If you're a true AC lover...you'll buy that.  Been having trouble getting some photos loaded here.... So...Gerry..the rippers and blade were chained up....they used a big excavator to do that and load it. So if all goes well there is at least one more we are going to get. It will be pushed on with Johns HD16B dozer. |
Posted By: shameless dude
Date Posted: 25 Jan 2021 at 1:34am
| thanks for thinking of me in your video, you DID miss the perfect time to put one or more of them blue truck wanna-be's on top of the burn pile! thanks for the vids...glad to hear you are still kick'in! nice looking dog too! looks like a real buddy! |
Posted By: shameless dude
Date Posted: 25 Jan 2021 at 2:53am
| still watching your vids...shucks...you could cut the stuff yer burning into firewood and sell for cordwood building, they want soft woods for that! around here we hafta have burn permits for every brush fire we start, they issue me one good for 6 months at a time. they also call me "pyro". i cut until my back goes out, then quit awhile. i love that brush rake you gots, sure makes things easier! oh...i could send you a bunch of tires to help them piles along! they make good stump burners too....at night! lol |
Posted By: AC Mel
Date Posted: 31 Jan 2021 at 2:14pm
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Ok...we had a few minutes the other day so Brannen put some batteries in it...then had to rebuild the starter solenoid to get it to turn over. [TUBE]sa2dcDpinK8[/TUBE] The previous owner John had sent me a text after I sent him a video of it running...he said the more he thought about it...he thinks it's been more like 25 years that it's been sitting there. So far so good....we didn't try to move it but the hydraulics were working. We need to free up the steering clutch levers and we'll see if it will move.Need to identify which final is bad...John is sure it is the right side....what the heck after 25 years I want to double check!...you know...don't want to amputate the wrong leg by mistake!! Lot of work to get in there. FYI We didn't grind on that starter as much as it looks like....I spliced all those together for the show. Also we were with out power and wifi here for several days do to a snow storm with about 4-6''...could get this post up.
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Posted By: Mikez
Date Posted: 31 Jan 2021 at 3:46pm
| that’s awsome |
Posted By: Gerry D17
Date Posted: 31 Jan 2021 at 3:59pm
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That` excellent she fired right up. Did she need a touch of ether. Also did you drain out all the old fuel and flush the lines. They have a nice look to them. You can keep the updates coming as much as possible as there interesting. I don`t have the access to be around that machinery but I can sure see the amount of work involed with repairs. Thank again |
Posted By: shameless dude
Date Posted: 01 Feb 2021 at 12:29am
| hows that new building coming Mel...got it done and filled with AC equipment? |
Posted By: shameless dude
Date Posted: 01 Feb 2021 at 12:40am
| i think some of them stumps need tires sitting on them too....want sum? lol |
Posted By: tadams(OH)
Date Posted: 01 Feb 2021 at 1:47pm
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Mel maybe Shameless will deliver them tires to you |
Posted By: Ray54
Date Posted: 01 Feb 2021 at 2:58pm
| My uncle Ed ran a 69 HD 21 p from 73 till 2000+ when he could not climb on it. The finals where the weakest link on it. Had the same hinge rippers but strait blade. The last time or 2 he was in finals had guy from the oil field come with liquid nitrogen tank and tube of some kind to get bearing on and off. I never saw the way it was all set up. His other words of wisdom was a good torch wrench in inch pounds for the adjustment of preload. He covered city garbage so had a lot of trash rapping and learned to clean often which also helped final longevity. |
Posted By: AC Mel
Date Posted: 03 Feb 2021 at 3:05pm
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Ok...To answer a couple of questions... Gerry...didn't do anything with the fuel or filters...has a half tank of fuel..didn't use any either ...actually started to before we got fuel to it then decided not to once it started smoking. We were still operating under the assumption it was running when it was parked. Thomas....Shameless will probably be delivering the tires...so he can pickup his new hat. Ray....Yes the inch pound torque wrench is pretty important...we've done 5..6...9..11s and I think the 21B. One thing I have noticed...the older I get ...I don't mind working on the big stuff...cause its easier to see the big parts LOL. So were probably getting way ahead of ourselves....but if we can get this final redone and find a canopy....hoping to put a brush rake on it and build some more burn piles for Shameless to drool all over [TUBE]i4C6OZNdhGE[/TUBE]
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Posted By: tadams(OH)
Date Posted: 04 Feb 2021 at 2:45pm
| Looks like it should move some brush and anything else that gets in it's way |
Posted By: TramwayGuy
Date Posted: 04 Feb 2021 at 3:08pm
| I spent a lot of hours on a HD21A in the summer of 1971. It started after just bumping the starter. Never saw any other machine that easy. |