Structures Allis 620
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=109331
Printed Date: 26 Nov 2024 at 3:38pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Structures Allis 620
Posted By: structures
Subject: Structures Allis 620
Date Posted: 22 Jul 2015 at 11:51pm
Hi. This posted on craigslist a couple months ago locally. I wanted an Allis 620/720 style tractor the first time I saw a picture of one. I like how rugged and durable they look. So I couldn't resist to go check it out. I was really surprised how large these machines are. 1500 lbs and 48" wide. Pictures don't do justice. I went out checked it over, drove it around and offered what I wanted to give. Unfortunately he wasn't ready to let it go at that price. I waited it out for a month or 2. Monday I put my original offer in again and we were able to make a deal. It's had a touch-up paint job. It's not bad. I've seen this on occasion, mask off the decals and I guess rattle can? Looks to me like it's had some rigging over the years under the hood. It's missing the front PTO but has the switch. Hour meter reads 135. I'd like to get a front end loader and mower deck for it someday. Any advice and critiquing you guys want to provide would be appreciated. I don't know a whole lot about the 620. Thanks!    ------------- Robert http://www.allischalmers.com/forum/forum_posts.asp?TID=82702&KW=structures&title=structures-1964-allis-d15-series-ii" rel="nofollow - 1964 D15 Series II |
Replies:
Posted By: coggonobrien
Date Posted: 23 Jul 2015 at 9:19am
| something doesn't look right about the front of the crankshaft, looks short to me |
Posted By: Orange Blood
Date Posted: 23 Jul 2015 at 9:54am
|
Missing the front clutch, for the mower deck, or snowblower. ------------- Still in use: HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060 Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7 |
Posted By: DSeries4
Date Posted: 23 Jul 2015 at 10:50am
|
What is that extra gauge in the dash? Not the ammeter... Looks like a decent unit. It appears someone removed the front clutch to fit that extra large battery on there. ------------- '49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '61 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080 |
Posted By: Dan (SE MI)
Date Posted: 23 Jul 2015 at 10:59am
| I think that must be an engine, or at least a crank, from another application. The crank should extend well into the area currently occupied by the battery. That rectangular opening in the frame below the battery is for the belt to pass through from the front PTO. The electric clutch pulley would be centered above that. That will be problematic for running a snowblower or mower deck. I have a 616 with a loader and it uses the front PTO for the loader pump as well. I'm sure with some creativity you could run the loader pump off the rear PTO if need be. |
Posted By: Steve in NJ
Date Posted: 23 Jul 2015 at 12:36pm
|
Nice lookin' unit! Dave & Dan are right, what's up wit' the short crank? Hmmmm... wonder if that was machined off. Looks to clean of a cut to be homemade to be done in the chassis. Strange. As Dan mentioned, that's gonna be tough to run a snowblower, loader, or plow off the front with that short crankshaft. Might have to improvise when the time comes, but still a nice unit. Good luck with it....... Steve@B&B ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: HudCo
Date Posted: 23 Jul 2015 at 12:40pm
| sam e place i mounted my oil presure gauge |
Posted By: structures
Date Posted: 23 Jul 2015 at 1:15pm
|
Somebody previously put an oil pressure gauge at the top. It's not hooked up though. I figured the front shaft was shorter because it used a clutch style pulley. That battery is actually turned sideways is why it looks so big. It's one of those new little lawn mower batteries. ------------- Robert http://www.allischalmers.com/forum/forum_posts.asp?TID=82702&KW=structures&title=structures-1964-allis-d15-series-ii" rel="nofollow - 1964 D15 Series II |
Posted By: BrianC
Date Posted: 23 Jul 2015 at 2:11pm
|
Anyone know what is supposed to go in the hole to the left of the front PTO switch? I have seen pictures of a switch in there, what does it control. |
Posted By: fasstman
Date Posted: 23 Jul 2015 at 4:40pm
| Is the engine out of a generator? I think they had short tapered shafts. |
Posted By: coggonobrien
Date Posted: 24 Jul 2015 at 6:52am
|
my generator engine has the full crank shaft, but it is a cckb. I have a ccka crank (original, not-machined) available if you wanted to purchase it. David
|
Posted By: structures
Date Posted: 24 Jul 2015 at 7:46am
Appreciate your guys help. I think it is a generator engine or a cck engine? Not sure. There's no markings on it, but some of the black paint has scratched off and it appears to be that onan green color. Guess it's been re-powered. Here's some more pics.   I couldn't make the last digits of the sn out. 30426475?    ------------- Robert http://www.allischalmers.com/forum/forum_posts.asp?TID=82702&KW=structures&title=structures-1964-allis-d15-series-ii" rel="nofollow - 1964 D15 Series II |
Posted By: coggonobrien
Date Posted: 24 Jul 2015 at 9:06am
| that extra hole would be a 3 postion switch for if you had an electric chute on a snow blower |
Posted By: Steve in NJ
Date Posted: 24 Jul 2015 at 2:10pm
Talk about Green paint. My 620 had a Lime Green paint on the inside of a couple of the engine cover shields. They were Black on the outside, but Lime Green on the inside of a couple. Nasty lookin' color..  ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: WD45Diesel57
Date Posted: 24 Jul 2015 at 9:55pm
|
My CCKB motor out of my 620 also has that nasty lime green under tin work, I'm thinking that color is a factory onan color and Allis just repainted them ------------- 1-B's, 2-C, 2-CA's,2-WF, 1-WC,1-G, 3-WD's, 2-WD45, 1-RC, 1-D17 Diesel, 1-D14, 2-D15,1-D17 row crop,1-D19 gas and All Crop 40,60,66,72,90 and 100 |
Posted By: BrianC
Date Posted: 25 Jul 2015 at 7:44am
|
Mine has a plain black steering wheel center cap. Can I get an Allis Chalmers logo one, for cheap? Look at how high that seat is, look at the 2.5" clearance to the hump in transmission cover. Only about 1/4" clearance on mine. I gave up trying to remove the cover, after I scratched it. How many different seats are on these things. Something looks different with the air cleaner. I have a good belly mower and front clutch. BUT I would rather use the Woods RM59CO cat 0 3pt mower. The belly mower is in the way for tractor like operations (plowing,disking etc.). Yikes, cost of clutch, crankshaft and mower. I think the Onan was used in a Sears Suburban model. I don't know about that crankshaft end. Ask an Onan expert if they ever seen that, perhaps an Ebay seller. Does AGCO sell parts for the 620. I notice they do not have a parts manual online. Can a genuine AGCO dealer see the parts book? Did anyone on this forum work at Simplicity when they made these tractors? Have any stories to tell? If I had the time talent and money and wanted a big project,this is how I would re-do the 620- Different engine 3cy diesel or gas. Larger gas tank. Fuel gage on dash. Foot operated hydrostat controls. Bigger better transmission oil cooler. Tractor like 3pt lift operating lever with position control. Power steering like on the JD318. Two remotes up front for snow blade. 540 rpm PTO- I think this would be a toughie. 3.7 times lower RPM=3.7 times greater torque and loading forces. Looking at the parts book pictures I see a drive shaft with gear driving an idler gear driving the pto shaft. I have no sense of space available in there for new gearing arrangement. Does anyone think this is a possibility? What was the price of a 1975 720 with rear PTO and 60" mower? |
Posted By: macvette
Date Posted: 26 Jul 2015 at 12:07pm
| My 620 has the original engine, and shows green inside shroud paint as well. |
Posted By: Steve in NJ
Date Posted: 05 Aug 2015 at 6:45am
|
I think Allen is dead on with AC painting over the Nasty Green Onan color. Just starting to get my CCKB engine back together. I'll have to take a few pics of it as it goes back together. Got the new front tires for it and mounted them up at work at lunchtime. Tossed them back on to get it rolling again. I wanted to have this project up and running before the cold weather sets in. Want to use the loader for snow removal and around the property next season. Got the subframe for the loader bolted to the bottom of the Tractor also. Its gettin' there, but not quick enough. To darn busy with my full time job and our business. And with the rain we were getting for a while, the mowing never ends! LOL! ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |