We have some old tank pup trailers that we use for fuel storage in the woods. They're from the mid 60s and belonged to PIE.
When the air bleeds off they have no brakes. In our case that's an advantage because they can be moved with a Cat or a skidder if a truck isn't available. We've moved them empty with a pickup.
Each trailer has a set of four wheel chocks and the rule is that they never, ever, get unhooked without the chocks in place.
Whatever happened to landing gear with rollers?
Discussion in 'Questions From New Drivers' started by TomCougar, Dec 9, 2019.
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I ordered and bought a new Trail King RGN in 1993,forgot to check off the box for maxi brakes,it came through without them.
I call them maxi's,maxibrakes,others refer to them as spring brakes,same thing. When I drove my first semi in the 60's,there were still tractors that didn't have maxi's,usually a mechanical hand operated band brake on the transmission for parking. Worked ok till they got oily.FlaSwampRat and AModelCat Thank this. -
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I could see where this could be a nightmare in some cases. Now I'm understanding the chasing comment.
FlaSwampRat and DougA Thank this. -
I think for the most part the whole reason for using service air for "park" brakes (for a lack of better term) was in the event of a breakaway scenario. I seem to remember that the brakes had to hold a loaded trailer a minimum of 15 minutes in the event of a breakaway situation. They never intended them to be a long term means of securing the trailer from moving, only to get it stopped if it came loose from the truck.
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Nobody remember the shut off valves at the back of the cab?
FlaSwampRat Thanks this. -
The back up 1947 White gas job had no trailer protection valve. I would park it [empty] in gear and jump out and pop the emergency line off the goose-neck to trailer connections and the spring brakes would set....
By 1972 there were two buttons on the rear of the R600 cab, pull on the tractor valve and the trailer would pop out a few sec later...that was Chem Leaman;s first year of Imron paint and a guy who had to switch silo's found the ASF 5th wheels didn't lock right with the thick layer of the new paint as the trailer slid off the 5th wheel when the tractor stopped rolling back...the delay was enough to put the part loaded cement trailer on it's noseFlaSwampRat Thanks this. -
Dogging trailers around the chemical factory I used to work at, a lot of the drum and keg trailers didn't have spring brakes. It wasn't too bad hooking to them in summer but winter and ice were an absolute joy.
D.Tibbitt and FlaSwampRat Thank this. -
Last edited: Dec 9, 2019
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HoneyBadger67 and starmac Thank this.
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