TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

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

Minneapolis Moline Tractors Discussion Forum

Using Ampli-torque in low range

Welcome Guest, Log in or Register

Author

Alan K

05-15-2008 20:26:21

Report to Moderator

I have an M5 I plan on using to cut around the yard with a 3pt sickle mower. Im sure 1st will be too fast and am wondering if it hurts the torque to use it in low range for this purpose.

[Log in to Reply] [No Email]

klw445

05-16-2008 19:12:36

Report to Moderator

Re: Using Ampli-torque in low range in reply to Alan K, 05-15-2008 20:26:21

We had a U302 that was completely overhauled in 1978. We only added about 1 gallon of hyd fluid to the gear oil. Pulled a 12" disc and plowed for countless hours... in low range. Never have turned a bolt on it since, and low range works as good now as it did in 1978.

[Log in to Reply] [No Email]

Captainhookerus

05-16-2008 12:30:37

Report to Moderator

Re: Using Ampli-torque in low range in reply to Alan K, 05-15-2008 20:26:21

Make sure you have universal transmission hydraulic oil in trans. If not drain at the final drive hole and ampli-torq drain, then fill torq compartment to top check hole and trans compartment to lower check hole. These small plugs are located on rh side around brake pedals.

[Log in to Reply] [No Email]

Alan K

05-16-2008 15:31:17

Report to Moderator

Re: Using Ampli-torque in low range in reply to Captainhookerus, 05-16-2008 12:30:37

Hy-tran or something similiar? Lighter weight oil than the 80-90.

[Log in to Reply] [No Email]

Captainhookerus

05-16-2008 15:54:15

Report to Moderator

Re: Using Ampli-torque in low range in reply to Alan K, 05-16-2008 15:31:17

Yes sir. hy tran, johndeere 303 equivalent, AC 821
Ken

[Log in to Reply] [No Email]

Clint Youse MO

05-16-2008 11:36:15

Report to Moderator

Re: Using Ampli-torque in low range in reply to Alan K, 05-15-2008 20:26:21

Dont let it free wheel down a hill if you have on you are mowing on as this will also make them go out or burn up

[Log in to Reply] [No Email]

Ill John

05-16-2008 10:20:29

Report to Moderator

Re: Using Ampli-torque in low range in reply to Alan K, 05-15-2008 20:26:21

Dale has the correct diagnosis, actual temperature has nothing to do with it.

[Log in to Reply] [No Email]

Freddy

05-16-2008 01:14:34

Report to Moderator

Re: Using Ampli-torque in low range in reply to Alan K, 05-15-2008 20:26:21

once the trans reachs temperature then it will not hurt a thing. Most of these old tractors had a warning some where to let the trans warm up from use before using low side.

[Log in to Reply] [No Email]

Alan K

05-16-2008 07:54:50

Report to Moderator

Re: Using Ampli-torque in low range in reply to Freddy, 05-16-2008 01:14:34

Thanks for the info. I figured that too about letting it warm up. Anyone know generally how long it takes to warm up if your not using it heavy?

[Log in to Reply] [No Email]

Howard H.

05-16-2008 04:39:29

Report to Moderator

Re: Using Ampli-torque in low range in reply to Freddy, 05-16-2008 01:14:34

That's interesting! What does the temperature have to do with it??

Howard

[Log in to Reply] [No Email]

R.D.F.

05-16-2008 10:00:54

Report to Moderator

Re: Using Ampli-torque in low range in reply to Howard H., 05-16-2008 04:39:29

You've raised an interesting question about temperature! Common sense will tell you temp. has virtually nothing to do with this issue. If the tractor is used in Arizona in winter to haul a load of irrigation pipe 2 miles down the road the normal fluid operating temp. will be very different than a similar tractor hauling a load of manure in Wisconsin when it's 20 below zero for 20 minutes, right? The reason for the operating decals and proper operating procedure of a tractor with Ampli-torgue is this. Look at the side of the A/T case, see the fluid level plug? Now look at the position of the A/T in the case. Quite a bit above the fluid level. So, the reason for delay in operating the A/T in low range is so fluid is slung up into and onto the A/T assembly. The damage to spring-roller or sprague assy's is started when they are run dry. Most tractors of that era did not have pressured lube systems so reliance of the "sling your oil" theory was normal. Now this becomes your judgement call, Dale

[Log in to Reply] [No Email]

freddy

05-18-2008 13:55:35

Report to Moderator

Re: Using Ampli-torque in low range in reply to R.D.F., 05-16-2008 10:00:54

Wouldn't common sense tell you that the rated oils for the rear end thin with temperature? And higher temperature would cause the viscosity to drop. This would aid in flow of lubrication. Since this tractor rear end relies on gravity and splay for lubrication.

[Log in to Reply] [No Email]

James22

05-16-2008 09:06:54

Report to Moderator

Re: Using Ampli-torque in low range in reply to Howard H., 05-16-2008 04:39:29

I believe the operators manual states that the ampli-torque clutch will slip and eventually "burn up" if you don't let the transmission warmup. In high draft applications I always choose a lower gear and run the first 10-15 minutes in direct drive drive before using the low range. I'm not sure it is an issue in low draft situations such as pulling a mower on level terrain.

[Log in to Reply] [No Email]

SWmolines

05-17-2008 07:33:10

Report to Moderator

Re: Using Ampli-torque in low range in reply to James22, 05-16-2008 09:06:54

The clutch that they are cncerned about is the sprag/roller clutch spinning on its hub and burning up. In high range, the sprag over-runs with virtually no load on the sprags or rollers. In low range, the hub wants to spin in opposite direction and the sprags/rollers are forced by springs and their geometry grip and stop the hub from spinning. If the hub spins in low range, the torque does not work and it makes the high pithed whirling sound heard on units that do not fuction in low range.

[Log in to Reply] [No Email]

SWMolines

05-16-2008 08:59:02

Report to Moderator

Re: Using Ampli-torque in low range in reply to Howard H., 05-16-2008 04:39:29

If the oil is too cool, its viscosity may be too high and not allow the rollers or sprags to grip the torque hub.

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

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