trialanderror
ArboristSite Operative
Need some input and opinions.
old hough 50 series, and she needs a replacement hydraulic pump, replaced and re positioned.
I'm not sure what came off it for specs, but the accessory drive splines on the machine side are roached and stripped. Someone extended the splines on the pump, which worked, but i can't find a pump with a 4" input shaft.
So im planning to move it and drive it off the crankshaft of the engine. Which isn't a concern, just need to move the radiator and trans cooler up a few inches, and unfortunately fix the alternator, as i'll need to go to electric fans instead of belt drive, since nothing is going to line up correctly. (for the past 40 years it's had just the coil hooked up to run the points. I'tll run all day on a battery charge.
i'm wanting to go with a 30-35GPM pump @ 2500rpm max, but according to some velocity math, and some sources on the internet's, i'm reading anywhere from 5 to 15 feet per second. Now, 35gpm needs like a 3.5" suction line to honor 5Ft/sec. Is this accurate? the suction line on the OEM was only 1.5", and that pump wasn't too bad when it was new. The machine has the 3rd spool to run accessories, in this case a heavy drott 4in1 clamshell.
Couldn't i stick with 1.5? or upgrade to a 2" suction line? I understand the idea is to prevent cavitation, but i can't imagine that happening in the middle of the summer? The machine is *NOT* cold weather operator friendly. It has no creature comforts besides a seat that flops forward to access the batteries.
If anyone has any links or standard practices, let me know.
I'm ready to order a pump, and id like to stay at least 20-25gpm, maybe 30 to run rental attachments, as the hour meter on my equipment is broken
The original Hough 50 had an international 6 cylinder gasser in it, and my old man mocked in a flat top piston mid 60's chrysler 318. He used the international's starter, and made his own bell housing to adapt to chrysler bolt pattern. It'll have the torque to turn a slightly bigger pump, but at the same time i don't want to over-rev the pump's 2500 max RPM. I'd imagine i'd tease 2000rpm rolling around in gear.
thanks.
old hough 50 series, and she needs a replacement hydraulic pump, replaced and re positioned.
I'm not sure what came off it for specs, but the accessory drive splines on the machine side are roached and stripped. Someone extended the splines on the pump, which worked, but i can't find a pump with a 4" input shaft.
So im planning to move it and drive it off the crankshaft of the engine. Which isn't a concern, just need to move the radiator and trans cooler up a few inches, and unfortunately fix the alternator, as i'll need to go to electric fans instead of belt drive, since nothing is going to line up correctly. (for the past 40 years it's had just the coil hooked up to run the points. I'tll run all day on a battery charge.
i'm wanting to go with a 30-35GPM pump @ 2500rpm max, but according to some velocity math, and some sources on the internet's, i'm reading anywhere from 5 to 15 feet per second. Now, 35gpm needs like a 3.5" suction line to honor 5Ft/sec. Is this accurate? the suction line on the OEM was only 1.5", and that pump wasn't too bad when it was new. The machine has the 3rd spool to run accessories, in this case a heavy drott 4in1 clamshell.
Couldn't i stick with 1.5? or upgrade to a 2" suction line? I understand the idea is to prevent cavitation, but i can't imagine that happening in the middle of the summer? The machine is *NOT* cold weather operator friendly. It has no creature comforts besides a seat that flops forward to access the batteries.
If anyone has any links or standard practices, let me know.
I'm ready to order a pump, and id like to stay at least 20-25gpm, maybe 30 to run rental attachments, as the hour meter on my equipment is broken
The original Hough 50 had an international 6 cylinder gasser in it, and my old man mocked in a flat top piston mid 60's chrysler 318. He used the international's starter, and made his own bell housing to adapt to chrysler bolt pattern. It'll have the torque to turn a slightly bigger pump, but at the same time i don't want to over-rev the pump's 2500 max RPM. I'd imagine i'd tease 2000rpm rolling around in gear.
thanks.
