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Lwayne
Join Date: Sep 2007
Posts: 95
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2009-10-23          166491


Question: I'm fairly familiar with how a hydraulic system works but would like some of you number crunchers to check my work. I have a Farm King 740 - 74" category 1 rear snow blower. Needless to say, it's hard to do close up work staring backward over those 18.4 x 30" rear tires. I am trying to figure out a way to put a similar but hydraulic blower on my loader. Switching out the quick hitch is no problem BUT my hydraulic specs ARE according to my figures. My tractor has 22.5 gpm total flow with single scv's rated at 15.9 gpm. Here's the problem: 15.9 gpm x 2830 max. psi divided by 1714 = 26.25 hp at the outlet. Enough power? Further, I've understood you should have a reservoir equivalent to your gpm in order to use a continuous hydraulic motor. Mine is about 11.5 gallons. Anyone have any experience in this area to confirm or refute these numbers?

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auerbach
Join Date: Sep 2007
Posts: 2168 West of Toronto
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2009-10-24          166493


I have no answers, but maybe some comments.

-I think you'd need an auxiliary pump and reservoir. I assume you have a remote for the chute direction.
-You might need some extra weight at the rear.
-An option to consider is feeding the PTO forward.
-Another would be to power it with an electric motor, though you'd have to look into a supplementary alternator and maybe an inverter. ....

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Lwayne
Join Date: Sep 2007
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2009-10-24          166494


Aurbach, thanks for the comments. There are companies like you mentioned; Erskine, Puma and Deere's 4000 series to the name a few. The scary part is the price of these self contained units. For example, a trade price for my Farm King (used once and retails for $2995) was $8,000 to boot not including the quick hitch adapter. This unit has a 25 gallon 3 point hitch reservoir. I don't want one with the pto geared underneath, but they're pricey too. I'm wondering if I can get by without the extra money or ruining my tractor's hydraulics. Thanks again. ....

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hardwood
Join Date: Dec 2002
Posts: 3583 iowa
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2009-10-24          166495


LWayne;
My experience with Deere 7 and 8 thousand series would tell me yes, they have pump capacity up the wazoo, and even they had optional higher capacity pumps from the factory only.
I have no experience with your series, but I have my doubts that unless a factory high volume pump was in the tractor that you can get that much out of the standard system.
I have the pumps, motors etc, to build a system such as you want driven from the mid PTO of my 4310 but just another of those haven't gotten around to things so far. ....

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Murf
Join Date: Dec 1999
Posts: 7206 Toronto Area, Ontario, Canada
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2009-10-25          166516


It's been my experience that the figures the manufacturers publish are, to put it politely, optimistic.

Almost all of them are "bench test" figures. In other words, just the pump alone can make 'X' gpm at 'Y' psi.

The problem is, in the real world however, the figures are vastly over-stated.

IMHO you should take the stated figures and divide by at least 2 if not 3 to get the actual number.

Best of luck. ....

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kthompson
Join Date: Oct 2005
Posts: 5242 South Carolina
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2009-10-26          166522


Have you checked the price of pto hyd pump and tank to provide the hyd flow and pressure you need? For less than a $1,000 including hoses and fluid you should be able to. If rear weight is needed the tank could supply that.

As to your question on size of reservoir compared to hyd oil flow, it is my "impression" that is to help keep the oil temp down. For snow blower that might not be an issue.
....

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auerbach
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Posts: 2168 West of Toronto
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2009-10-26          166531


I'll put it another way. Nobody likes to work staring backward. But 9 out of 10 blowers are rear-mounted. Do you not think there's a reason for this? ....

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Murf
Join Date: Dec 1999
Posts: 7206 Toronto Area, Ontario, Canada
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2009-10-26          166533


IMHO there's 3 good reasons for most snow blowers to be on the back of the tractor;

1) that's where the tractor manufacturers put the PTO shaft and 3pth needed to carry it,

2) customers want the lowest possible price, this means less mechanism,

3) most tractors today have a FEL on them, this makes front-mounting a blower both complicated and expensive.


Best of luck. ....

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yooperpete
Join Date: Jan 2004
Posts: 1413 Northern Michigan
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2009-10-26          166534


Seems that in today's high-tech world, it would be cheaper and less complicated to mount a couple of rear facing cameras with monitors up front. ....

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kwschumm
Join Date: Feb 2003
Posts: 5764 NW Oregon
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2009-10-26          166536


Quote:
Originally Posted by yooperpete | view 166534
Seems that in today's high-tech world, it would be cheaper and less complicated to mount a couple of rear facing cameras with monitors up front.


I've been wanting to mount a camera on the front to help aim the pallet forks. That would be pretty nice, but it would have to be ruggedized. ....

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kthompson
Join Date: Oct 2005
Posts: 5242 South Carolina
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2009-10-26          166538


Quote:
Originally Posted by kwschumm | view 166536
I've been wanting to mount a camera on the front to help aim the pallet forks. That would be pretty nice, but it would have to be ruggedized.


Just wondering, would it be possible to install them inside headlights? Realize you would have to do something to prevent the light from within the fixture flooding them and it would also affect the beam. ....

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Murf
Join Date: Dec 1999
Posts: 7206 Toronto Area, Ontario, Canada
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2009-10-26          166542


We have 2 large tractors that are specially spec'd out for some special jobs, snow being the primary one.

Amongst the neat features they have are dual steering wheels, one in front and one in back, to work in reverse you spin the seat around 180 like you would in a backhoe and use the other steering wheel. Another really handy one is that a bunch of the commonly used tractor controls are mounted in the right-hand armrest, so they move and turn as the seat does. They also have a 30mph road speed which in a big tractor is really moving! This is not so bad though because of the air-ride cab and front air suspension, it really takes the bumps out of the road.

The need for such features is because the tractors are outfitted with 12' wide snowplows on the front, and 8' wide double auger snow blowers on the rear and both are used in concert with each other.

The twin controls allow the operator to operate the tractor facing forwards to plow, backwards to blow snow or sideways to keep an eye on both ends at once.

Unfortunately they are both priced, and sized, out of reach for homeowners. LOL

Best of luck. ....

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