Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum
:

Calcium, how much weight?

Welcome Guest, Log in or Register
Author 
Ted

02-09-2003 21:02:01




Report to Moderator

I have a 720 with 18.4x30 tires and was curious as to how much weight there would be with the fluid level to the top rims. Also have 630 with 14.9x38s filled to top of rims, the 14.9s took just 100 gal of fluid in each tire, any idea how much weight that might be also? Thanks Ted.




[Log in to Reply]   [No Email]
G Taylor

02-10-2003 08:16:40




Report to Moderator
 Re: Calcium, how much weight? in reply to Ted, 02-09-2003 21:02:01  
According to the tire engineers at Firestone and Goodyear, no extra weight is ideal. Extensive testing has shown that over ballasting and gearing down to "pull more" does less work, wears parts faster and reduces crop yields due to compaction. Ideally the tractor should weight 115 to 145 lbs per pto hp,have 25% on the weight on the front wheels when parked. The engine should be run at full rated rpm, at 80% load while travelling at 3 to 5 mph on bias tires. The 720 is lots heavy at 59x145= 8555lbs. Depending on options most standard 720's go about that with driver and fuel.3rd or 4th gear is ideal for drawn loads. 912 extra lbs per tire with calcium. The 630 with 49hpx145=7105 lbs. You have to sit light on the seat to get a bare 620 narrow front under 6500lbs with fuel & driver. Those tires will hold 687 lbs each. Again 3rd or 4th gear is ideal for drawn loads. And without calcuim ballast, dribbles at the valve stem or punctures won't spray corrosive fluid.

[Log in to Reply]  [No Email]
MIKE HANLEY

02-10-2003 13:53:13




Report to Moderator
 Re: Re: Calcium, how much weight? in reply to G Taylor, 02-10-2003 08:16:40  
If no additional wt is recomended, how come the operaters manual has a full page on adding wts. When in school I was tought that you weight a tractor so that under full load the tires slip 10% Neb tests on concrete. They will not allow a tractor to slip over 16%. if it does they will run part throttle till slip gets down below 16%. The 520 they had to be part throttled in 1st and 2nd gears. The 620 had to be part throttled in 1st gear. Both the 720 gas and the 720 Diesel had to be part throtted in 1st and 2nd gears. The 620 max pull was 6122# at the 11.82% slip. The 720 max pull was 6647 at 12.75% slip. 10 HP more and only pulled additional 525#. A 620 wt was 6923# without additional wt and John Deere added wts to take it up to 8655# for that part of the test. The 720 diesel wt was 7861# and was taken up to 9241#. for it's test. (Neb just tests. The co's set up the tractors as to how they want them tested.) Without added wts our tractors would never leave the yard. They would still be spining on the clay grease. We have our main 730D loaded to 12,500# and will come up a hill under load and sit with tires spinning. Our 630 with the loader and the rear blade comes in at 11,000. And will totaly spin out in 2nd gear. Drive train and tire probles are because there is 0% slip under full load. we have had the 630 since 1977 and the 730D since 1978. These are working tractors and never had a drive train proublem.

[Log in to Reply]  [No Email]
G Taylor

02-10-2003 19:46:00




Report to Moderator
 Re: Re: Re: Calcium, how much weight? in reply to MIKE HANLEY, 02-10-2003 13:53:13  
Ballast is required for mounted equipment to restore stability,steering and fore/aft balance. The 115 to 145 lbs per hp is for drawbar loads as stated. There are conditions as well where drawbar loads do not "add weight" or pull down on the drawbar. Some of that 25% weight on the front wheels is supposed to transfer to the rears. Of course addition ballast and adjusting drawbar length if possible maybe required. If the soil is greasy clay traction is limited no matter the weight once the lugs fill. Tire size,rim width, tire construction and style vary. Just observe how identical tractor models weighting the same at tractor pulls. Some spin out at 1/2 track while other make full pulls. Hilly country as well skews the "normal" ballast equations by shifting the center of gravity. Most of the time however an under sized/overballasted/geared down tractor is attached to a too large load. And excess ballast is often used when not requred on light and sandy soils. Drive train problems are usually accelerated wear rather than outright breakage from too heavy loads.

[Log in to Reply]  [No Email]
MIKE HANLEY

02-10-2003 20:14:14




Report to Moderator
 Re: Re: Re: Re: Calcium, how much weight? in reply to G Taylor, 02-10-2003 19:46:00  
I gave up tractor pulling when it turned pro. back when it started you took you tractor out of the field and pulled. Know a guy named Johnny Walsh Sr from Mauston Wi? His kids still pull and I know they have pulled At the Nationals in Tomah Wi. At one time many years ago, we lived next door to him in Mauston. His big farm tractor was a Farmall 560. He also had a Farmall 400 that he souped up to 70HP to pull. The tractor could not even pull a hay wagon field to barn without overheating after being souped up. My big tractor at the time was a J.D.620 at that time. Nothing could beat that 400 except my 620. Johnny would come screaming down the track with the engine wound tight. My 620 came out of the field. I would put it in 2nd gear and use my foot to ease in the hand cluch not totaly snapping it in untill almost the end. I beat him every time.

[Log in to Reply]  [No Email]
G Taylor

02-11-2003 09:50:53




Report to Moderator
 Re: Re: Re: Re: Re: Calcium, how much weight? in reply to MIKE HANLEY, 02-10-2003 20:14:14  
Those 620/630 seem to realy pull. The local terror of the 10,000lb class on Blyth's sticky class track is a 630 rowcrop/wide front. Jim just putts unconcerned down the track in 1st gear, perfectly balanced and takes home the 1st prize with boring regularity. Makes the guys with big old WD's and R,80.820 & 830's cranky.



[Log in to Reply]  [No Email]
MIKEHANLEY

02-10-2003 01:26:28




Report to Moderator
 Re: Calcium, how much weight? in reply to Ted, 02-09-2003 21:02:01  
It will vairey depending on how strong the chloride is mixed. Based on Pure water. Good to 32 degrees. 18.4 x 30 will add 742# per tire. (89 gals of water.) 14.9 x 38 will add 559# per tire. (67 gals of water.) Based on 2# 77% CaC12 per gal of water. Good to +13 degrees. 18.4 x 30 will be 848# per tire. ((82 gals of water and 164# of calcium.) 14.9 x 38 will be 641# per tire. (62 gals of water and 124 # of calcium.)

Based on 3.5# 77% CaC12 per gal of water. goood to -12 degrees. 18.4 x 30 will be 912# per tire. (77 gals of water and 270# of calcium.) 14.9 x 38 will be 687# per tire (58 gals of water and 203# of calcium.)

The main reason for calcium is to keep the water from freezing not for added wt. Your tire man should be able to tell you how strong he mixs for you area.

[Log in to Reply]  [No Email]
Plant Doctor

02-10-2003 15:07:56




Report to Moderator
 Re: Re: Calcium, how much weight? in reply to MIKEHANLEY, 02-10-2003 01:26:28  
Mike: You are partly correct, calcium is used to prevent freezing, but there are plenty of less corrosive products that could be used. The reason calcium is used instead of other products is that calcium can add weight without increasing volume until you reach the saturation point. In other words, your tire can be completely full of water and you can still add calcium, and keep adding until the liquid becomes saturated. So you can add additional weight without overfilling the tire, plus calcium is very heavy per unit volume.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy