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Fruehauf 48TT flatbed trailer questions

Posted By darronb Monday, October 21, 2019 5:55 AM
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darronb
 Posted Wednesday, October 23, 2019 4:09 PM
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The trailer's seller sent me a photo of the title.

The trailer is described as a 1963 model.

Empty weight 3,600 pounds
Geoff Weeks
 Posted Tuesday, October 22, 2019 8:55 AM
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Spring brakes are parking/emergency brakes, the service brakes on both that trailer and later trailers are still air apply.
On non spring brake trailers there are no parking brakes, and emergency braking is done with air in the tank, when the supply to the tow vehicle air is removed, the brakes apply with stored air in the tank, over time it bleeds off and there are no brakes holding the parked vehicle. It should stop a trailer that broke away from the towed vehicle, but can not be counted on to keep the trailer in one spot.
darronb
 Posted Tuesday, October 22, 2019 4:46 AM
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I knew that air brake systems have been made in two ways, with the supplied air pressure either applying or releasing the brakes. I didn't realize the spring-type was a later development, so that's very useful information, thanks.

I'd love to hear from someone who has towed a heavily loaded trailer with no suspension.

Darron in the boonies of Northern Nevada
Geoff Weeks
 Posted Tuesday, October 22, 2019 2:23 AM
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Spring brakes on trailers weren't required until the 70's on most trailers and even later on specialty trailers.
FredD
 Posted Tuesday, October 22, 2019 1:18 AM
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In 1963, spring brakes did not exist as far as I know so it requires air to actuate the brakes. They are not caged. I am interested in opinions about road speed with no suspension.

Fred

Ahhh, there's nothing like the smell of diesel fumes in the morning.

1989 Mack MH 612
darronb
 Posted Monday, October 21, 2019 5:55 AM
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Howdy all,

I recently spotted a Fruehauf flatbed trailer for sale near Elko, Nevada.

I've been able to Google up little information about it.

The data plate shows a model of 48TT 16000LBS
And a serial number of BMD111701

The company name and lack of zip code on the data plate implies 1963 or earlier.

It's an air-braked single-axle with dualies.
The axle appears to be fixed to the frame (no suspension).

It has a lunette for pintle hitch use.

The bed tilts hydraulically.

I'd guess this was meant to haul a small bulldozer or some such, but the lack of suspension puzzles me.

What is the empty weight of this trailer likely to be?

What sort of maximum towing speed on a smooth paved road can it be expected to be safe at, given the lack of suspension?

I can buy it very cheaply, complete with title and the newish plastic tanks on the deck.

The wheels are free-rolling, so the air brakes have been caged, it would seem.

http://forums.aths.org/Uploads/Images/7f0cef81-63cd-46df-b143-9c10.jpg

http://forums.aths.org/Uploads/Images/eb40ec74-2889-4d56-a627-c4c6.jpg

http://forums.aths.org/Uploads/Images/07948625-84aa-415c-929b-24ad.jpg

http://forums.aths.org/Uploads/Images/5f461dd4-70f6-4fc0-8cef-4f1f.jpg

Darron
Golconda, Nevada

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