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1  Mower Building / Setup Help / Driveline / Re: Shiftable 700?? on: September 21, 2014, 12:38:25 PM
Steven,

    Who is this "fellow racer"?  Find out who it is -- he or she would best be able to answer your question.

    Theoretically, it would be possible to shift the 700 while running if you lowered the input-shaft speed, but to do that, you would need a smaller engine pulley, a larger transmission pulley, and a transmission sprocket about the same size as your axle sprocket.  You would also need to declutch before shifting while momentarily backing off the throttle.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
2  General / Coffee Shop / Re: Best Hydro Trans for Mini-Ute on: September 20, 2014, 09:47:04 AM
Just noticed it said I had to be a dealer with a tax-exempt certificate with them.
Brian,

   Do you know any local shop owners or business friends there who could order these for you?

Rodney
3  Mower Building / Setup Help / Garden Tractor Pulling / Re: Panzer model A stocker build. on: September 19, 2014, 01:30:04 PM
   Bob Riordan at Small Engine Distributors in Kansas City, MO, (816-421-6020; www.smallenginedistributors.net ) has a load of old Panzer stuff he will be offering soon.  I believe he's wanting to sell it as a lot.  Four or five complete tractors (one with dual rear wheels), mower parts, ground-engaging attachments, etc.  Sorry I don't have any pictures.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
4  Mower Building / Setup Help / Driveline / Re: Transmission for Senior Design Project (Peerless 820) on: September 19, 2014, 12:48:40 PM
We are in the planning stages of a Mechanical Engineering senior design project. We have been tasked to build a multi-person pedal powered bus.

Anyway, I want to run a peerless 820 and I have some questions.

#1) I read somewhere that these things will run upside down (820-017) because they are grease lubricated not oil bathed. Could I run one unmodified rotated 90 degrees backward from the original position. So input shaft pointing torwards rear of vehicle instead of vertically?

   Yes, according to Peerless engineering, you can run these transaxles with the input shaft in a horizontal position.  If you do this and run axle-down, I would recommend that you do as the racers do and also add 6-8 oz. of Lucas Gear Oil Additive to the Bentonite grease to better protect the shift mechanism and cluster gears.

Quote
#2) Do I need to run a viscous clutch (slips while engaging until fully engaged) or can I run an on/off electric PTO clutch?

   I suppose you could run either one, although the electric clutch will produce more of a shock load on the transaxle.  My recommendation would be to use a belt/idler clutch, like riding mowers.

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#3) Can I shift on the go? Stock lawn tractors usually require you to stop to change gears. However, these 820s seem like they should shift while moving forward if supplied with a clutch.

   You can shift on the go only if you declutch and have the pedalers momentarily stop pedaling to remove the input load on the transaxle.

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#4) Will it be strong enough to move 3k lbs with a much slower than average acceleration? Assuming outboard brakes and fully supported (no shear load) on axle shafts?

   That's considerably more maximum load than it was designed for but since it will be a very low-speed input, you should be okay.  The 820 is designed for "ground-engaging attachments", so if you're using one to pull a 2-bottom plow, you're approaching that much of a static load anyway.

Quote
#5) If it comes to it (hope to design in a way that doesn't require this) could this transaxle withstand being towed at highway speeds in neutral?

   Only if you want to replace the transaxle after you arrive at your towed-to destination.

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#6) Can I run slightly higher than maximum tire size? I am looking at 180/75-13 trailer tires as my smallest option after accomodating brakes.

   Peerless recommends a maximum tire diameter of 23" for the 820.  Your 180/75-13 probably aren't much larger than that.  Again, with the low-speed application of your bus, it should be okay.

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#7) Will it have a reasonably long service life?

   Define "reasonably long".  The Peerless 820 is the heaviest-duty gear-drive transaxle available, so it's the best choice for this project going in.  The only way to find out is to build it and see how it performs.

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Sorry, that is a lot of questions. Some of these things I will have to do analysis on to prove them to my sponsor but if it isn't going to work I don't want to waste my time on it. Especially, because I have not been able to get a response from Peerless about the load specifications of the transmission.

Thanks, A lot.  


   Apology not necessary.  "You won't learn if you don't ask."  If your sponsor wishes to contact me, that's fine.  And if you need further questions answered, feel free to email me.  I've helped with mini-bajas in the past.   And...you're most welcome.  If you do go ahead with this, you'll have to let us know how it works out.

   Your only other choice would be to use a transaxle from a small FWD car, but that would be considerably heavier than the 820.

   My question:  How many people is "multi-person" -- how many pedalers are you planning to have powering this 820-in-a-bus?

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
5  General / Coffee Shop / Re: Best Hydro Trans for Mini-Ute on: September 19, 2014, 08:10:46 AM
Brian,

   http://www.smallenginedistributors.net/transaxles.html .  Buy a supply of the 2000-002 or 2000-007 if replacement is required in the future.  These Peerless LTH 2000-Series transaxles are good units.

Rodney
6  Mower Building / Setup Help / Driveline / Re: Spicer 6-Speed Gear-Drive Transaxle with 1" Axles on: September 17, 2014, 09:25:11 AM
Could possibly be a candidate for a live axle conversion?
Jake,

   Possibly.  However, since Spicer exited the transmission/transaxle business a couple of years ago, even if you beef up the axle, if something else goes bad (think 'shift keys'), you won't be able to obtain parts.  Even Sears is running out.  And Peerless 820 parts will not interchange.

   On a related note, I have not had the opportunity to view one of these 7800-1 transaxles in person, so...if anyone ever comes across one that can be obtained inexpensively, I would pay to have it shipped to me for analysis and/or autopsy.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
7  General / Coffee Shop / Re: 700 tranny shift keys on: September 03, 2014, 06:16:02 PM
     Great suggestions all!  So many different ways to destroy the weakest link in the transmission/transaxle...

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
8  General / Coffee Shop / Re: Burnt crank/ connecting rod question on: August 24, 2014, 05:22:23 PM
Nick,

   If you want to save it properly and done right the first time, have it professionally turned by:
Zach Kerber Machine & Design, LLC
405 3rd Street
McClelland, IA  51548-3014
(712) 566-3008

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
9  Mower Building / Setup Help / Driveline / Re: To the peerless 400 lovers out there on: August 22, 2014, 01:17:31 PM
Owen,

   How do you plan to "drill" the lightening holes in these gears?  These gears come in two types -- heat-treated steel or powdered metal -- and both types are hard.  Do you have access to special bits that will penetrate these metals, or maybe a laser cutter?  You'll need to be careful not to affect the heat-treating of the gears, especially the teeth and the bores.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
10  General / Coffee Shop / Re: 3/4" internal bearings for front hubs? on: August 20, 2014, 09:28:18 AM
Martin,

   You're handle is DeereRacer. Well...go to your local Deere dealer and get some P/N AM127304 bearings. These are 3/4" ID, 1-3/8" OD, double-sealed ball bearings with outer shoulders -- good heavy-duty ball bearings.  I use them on the front wheels of my RoMower custom yard tractor shown in the Other Interesting Builds section.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
11  Mower Building / Setup Help / Driveline / Re: Stronger input shaft for Peerless 800? on: August 18, 2014, 02:45:38 PM
Is there a thicker input shaft that I can get for my Peerless 800 (I believe its an 800). The input shaft necks down to 1/2" for the pulley, all of my other transmissions use a 5/8" input shaft. I am worried this will be a weak point.
Scott,

   The standard input shaft for the 800 & 801 transaxles is 5/8" diameter and extends 1-3/16" above the lower thrust washer over the cover post -- 1" for the pulley hub, and room for the snap ring to hold the pulley on.  It has the 3/16" x 3/4" Woodruff key keyway.  It is P/N 776135.

   It is the most-popular input shaft for older transmissions and 3/4"-axle transaxles -- it fits many 500 and 700 transmissions as well as 900, 910, 920 and 930 transaxles. It does not fit the MST 200-Series of transaxles.   

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
12  Mower Building / Setup Help / Driveline / Re: 700 Peerless help on: August 12, 2014, 07:19:05 PM
Anyone know a good place to get a 700 Peerless style Trans? Not ec disturbing. Haven't had good luck with theirs.

http://www.heymow.com/index.php?topic=28824.0

Rodney
13  General / Coffee Shop / Re: Any vintage Ford guys on here? on: August 12, 2014, 07:14:19 PM
  Contact Mark "Buy a car, get a gun!" Muller at Max Motors right here in Butler, MO -- (660) 679-6567 or mmuller@maxmotors.com .  Mark is an avid Ford historian/collector.

   I contacted Mark today and he is not interested. Sorry.

Rodney
14  General / Coffee Shop / Re: Any vintage ford guys on here? on: August 10, 2014, 06:04:30 PM
Paul,

   Contact Mark "Buy a car, get a gun!" Muller at Max Motors right here in Butler, MO -- (660) 679-6567 or mmuller@maxmotors.com .  Mark is an avid Ford historian/collector.

   And if that doesn't work, ask Dennis Carpenter in North Carolina -- www.dennis-carpenter.com .

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
15  General / Coffee Shop / Re: What I got last week. on: August 10, 2014, 05:59:16 PM
   The price was right, but it looks like a hydrostat with 12" drive wheels.  Just use the chassis and engine...?!   confused

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
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