G crankshaft hydraulic pump

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   Need to replace the hydraulics on a G tractor. I have seen a picture if a G that had a hyd. pump mounted where the crankshaft nut would go.  How can I do this?  

Thanks,
Jared

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JaredM Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 02 Oct 2014 Location: Texas Points: 46	Post Options Post Reply Quote JaredM Report Post Thanks(0) Quote Reply Topic: G crankshaft hydraulic pump Posted: 07 Feb 2017 at 6:35pm
	Need to replace the hydraulics on a G tractor. I have seen a picture if a G that had a hyd. pump mounted where the crankshaft nut would go. How can I do this? Thanks, Jared

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Dan73 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 04 Jun 2015 Location: United States Points: 6054	Post Options Post Reply Quote Dan73 Report Post Thanks(0) Quote Reply Posted: 07 Feb 2017 at 6:57pm
	I would start by going to surplus center and looking at what they have for options there online catalog has alot of hydraulics for some of the best prices I have seen.

JaredM Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 02 Oct 2014 Location: Texas Points: 46	Post Options Post Reply Quote JaredM Report Post Thanks(0) Quote Reply Posted: 08 Feb 2017 at 9:32pm
	That us a good place to shop, but I don't even know where to start. I wonder if the is a way to key a pump to the hand crank nut on the crankshaft.

K-Mo Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 09 Feb 2013 Location: Atlantic, IA Points: 91	Post Options Post Reply Quote K-Mo Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 5:16am
	I have thought of adding hydraulics to my G. After a lot of though about how to mount a pump, plumbing and filter for using the transmission as a reservoir, I decided to go a different route. First step is to convert to a 12 volt electrical system. Then install a 12 volt hydraulic unit with self contained reservoir. I would install a "thumb" switch on the hydraulic valve handle to activate the unit when hydraulics is needed. So far this is only an idea. I would be interested in what you come up with. Kent

Dan73 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 04 Jun 2015 Location: United States Points: 6054	Post Options Post Reply Quote Dan73 Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 6:05am
	I don't know the G beyond seeing it on a photo. But keep in mind you will need 1 motor hp per 1 gpm at 3000 psi. The G has a pretty small motor I am not sure how much spare hp it has.

jaybmiller Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Greensville,Ont Points: 24781	Post Options Post Reply Quote jaybmiller Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 6:17am
	My G#2 was to have what K-MO said, 12V electric motor/pump/tank/valve unit and TWO batteries. It's a very clean setup ! Electrical install is same as snowplow Jeeps, one battery runs the tractor, the other the hydro unit. A big 'battery isolater' AKA 2 diodes allows the alternator to recharge both batteries at same time. Keep in mind you should upgrade to an alternator,small Denso units fit real nice(no cut tin !), if you use the hydraulics a lot. A fresh engined G only has about 10HP BTW, amazing what they do though ! Jay
	3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water

K-Mo Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 09 Feb 2013 Location: Atlantic, IA Points: 91	Post Options Post Reply Quote K-Mo Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 6:38am
	The 12 volt hydraulic units I have looked at are not continuous run. That's why I was thinking a "thumb" switch on the valve handle. My application would just be intermittent for lifting implements. A second battery would not be needed. Another idea just struck me. Maybe instead of a "thumb" switch, an "on demand" switch could be used. I'm also, no cut tin. I stay away from modifications that can't be easily reversed. I get too many ideas in my head while I'm having my morning pot of coffee. Too cold to play outside.

Dan73 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 04 Jun 2015 Location: United States Points: 6054	Post Options Post Reply Quote Dan73 Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 8:46am
	Look at a linear actuator 12 vdc. That would give you a lift without the hydraulics.

JaredM Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 02 Oct 2014 Location: Texas Points: 46	Post Options Post Reply Quote JaredM Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 9:34am
	I like that idea, that might work. Now to find a place to mount a 12 volt battery. This tractor is still 6 volt. Happen to know a good place for linear actuators?

jaybmiller Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Greensville,Ont Points: 24781	Post Options Post Reply Quote jaybmiller Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 9:47am
	Linear actuators can (are) pricey but CLEAN... What you NEED to know it the weight you MUST lift and how fast. Most LAs go really really slow with full load,so you need to read the data on them.The ones that lift a lot go sloooow. Check the price for a 'dump trailer' lift system. All-in-one motor-pump-reservoir. One control will turn on motor and open vavle to lift, pull lever back it'll shut off pump and oil flows back into reservoir. The reason for the 2nd battery is capacity. These motor/pumps demand a LOT of amps so unless the G is running fast, a low amp alternator can't keep up. That's one reason plow Jeeps have 2 batteries. Jay
	3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water

Dan73 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 04 Jun 2015 Location: United States Points: 6054	Post Options Post Reply Quote Dan73 Report Post Thanks(0) Quote Reply Posted: 09 Feb 2017 at 10:20am
	A linear actuator can move a lot of weight fast all depends on how big an electric motor is on it and how much it is geared down. I have seen them used in industrial applications that would pick the entire G up faster then you can say crap that was fast. I haven't priced them recently buy when you price the entire hydraulic system. Motor pump oil tank lines control valve hoses. That is alot of money to put into a linear actuator toggle switch and some wire. Also the hydraulic pump to cylinder will have losses and the small electric pump hydraulic systems probably only have a few gpm. I bet bang per watt of power the linear actuator is much more efficient and those easier on the G motor.