Re: PTO run Generators

["Jason and Maria Colavecchia" <jasoncolavecchia@domain.elided>]

Well, generally the PTO speed depends greatly on where it is taken off of
the drivetrain.  it is usually measured in a percentage of the engine RPM,
(eg. 125% of engine speed).

Unfortunately, i dont know exactly what the PTO would put out on IH
transmissions.  I believe the Tranny mounted PTO's are usually set up for
about 123% of engine speed, and are not dependent on the gear
selection...they run whether you are in neutral or not....

The Transfer case mounted pto speed, when run with the transmission in 4th
(5th, whatever) should be about the same...it will depend alot on the type
of pto used and which gear it takes its power from.  The transfer case Ptos
speed can be adjusted somewhat by selecting different gears in the
transmission.  The main transmission MUST be in gear for this style.

For a generating system, a transmission PTO would probably work better and
be more practical than the other style...BEST would be some kind of front
mount PTO like on a concrete mixer, but you would have to find a way to
make a hole that goes through the rad to allow a flange-mounted shaft to
pass through it to the front bumper-mounted pto...heheh..that would be a
continuous type setup, although heavy trucks usually have some kind of
air-shift disconnect that is internal to the Pto unit...
----------
: From: Weidenheimer Allan P <weidenhe@domain.elided>
: To: 'ihc-digest@domain.elided'
: Subject: Re: PTO run Generators
: Date: Wednesday, September 02, 1998 7:46 PM
: 
: >How about a PTO driving a generator that you use solely for your 2,000
watt
: >amplifier? IH put those in there for some reason.
: 
: Hey, this is an idea I've been toying with, but I want a 120VAC
generator.
: This would be great for when I'm out in the camper, or if you are not
: near an outlet and need to run a saw, drill, or other AC equipment.
: But, I need to know, what kind of speed does a PTO output?  For
: winches, I'd think they were much LESS than engine RPM, but
: for hydraulic pumps or generators, I'd think you want to run them 
: at a high speed (geared up from engine RPM?).
: It would be nice to put out 2200 watts with the 345 at idle-1000 RPM.
: So can PTOs be had in different ratios?  Also, I have two PTO
: ports on the 5 speed and one on the NP-205.  Are they all the same
: relative to the engine RPM?  Or maybe on the tranny, one PTO
: drive gear runs at engine RPM, and one at tranny output RPM?
: I didn't pull the covers, as they were not leaking.
: 
: Allan Weidenheimer
: 72 1210 Pickup
: No PTO Experience