Quest. about dump beds
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Fleet Owner
Joined: Dec 2000
Posts: 25,349
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From: Central PA
Quest. about dump beds
What is the difference between a dump bed that lifts with a PTO driven hoist and a hydraulic hoist? or is there no difference, just a terminology thing, or do bigger trucks use one and lighter trucks with lighter loads to dump use another?
I have driven dump trucks, years ago in in summer jobs while in college, that had the 2 levers on the floor. One was to engage the dump and the other was to raise or lower the bed. Some trucks had a red **** mounted on or under the dash to engage the PTO and another lever somewhere to lift the bed. Are all dump beds raised by the PTO? I remember that with the truck in nuetral and the clutch out the bed raised faster if you accelerated?
I just need a refresher as a truck I looked at has a "dump bed that works but it is not hooked up to the PTO" or so says the owner.
Thanks!
I have driven dump trucks, years ago in in summer jobs while in college, that had the 2 levers on the floor. One was to engage the dump and the other was to raise or lower the bed. Some trucks had a red **** mounted on or under the dash to engage the PTO and another lever somewhere to lift the bed. Are all dump beds raised by the PTO? I remember that with the truck in nuetral and the clutch out the bed raised faster if you accelerated?
I just need a refresher as a truck I looked at has a "dump bed that works but it is not hooked up to the PTO" or so says the owner.
Thanks!
Senior User
Joined: Aug 2001
Posts: 421
Likes: 0
From: Glendale, AZ
There are late model dumps which come with there own hydraulics package. You supply power to an electric motor which runs a small hyd pump. Usually these are just light duty type things. TRUCKS did a show on making a 1/2 ton box into a dump.
Post Fiend
Joined: Sep 2004
Posts: 5,231
Likes: 1
From: Near Fresno, California
PTO is a Power Take-Off unit - it bolts to the side of the transmission and, when engaged, spins a shaft. Most of the time the other end of the shaft is a hydraulic pump, but it does not have to be. Sometimes it is an AC generator, and, (in older trucks) it often was a mechanical winch unit - either for a hoist mounted on the bed or to the front bumper.
I have never known a dump bed that wasn't hydraulic - and now that hydraulic motors have become so efficent and cheap, can't think of any equipment that still uses the old style mechanical power.
Some trucks - the big diesels and the FT series of Ford gas motors, used a hydraulic pump mounted on the front of the engine. These trucks did not need a pto on the transmission, although there was a clutch on the front of the pump that needed to be engaged before you could lift the box.
I have never known a dump bed that wasn't hydraulic - and now that hydraulic motors have become so efficent and cheap, can't think of any equipment that still uses the old style mechanical power.
Some trucks - the big diesels and the FT series of Ford gas motors, used a hydraulic pump mounted on the front of the engine. These trucks did not need a pto on the transmission, although there was a clutch on the front of the pump that needed to be engaged before you could lift the box.
Last edited by WillyB; Dec 25, 2006 at 09:11 PM.
