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  #11  
Old November 1st, 2017, 06:59 AM
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Do you know how many horsepower motor that pump requires?
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  #12  
Old November 1st, 2017, 11:36 AM
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How much vacuum you trying to get? At 15" like it was designed likely a 1HP electric or a 3.5 HP gas, if ramping it up to 20-24" you will need most likely a 5-6.5 gas or a 1.5-2HP electric.
Also, if you go much over 15" you must get more oil flow to the bearings and might want to aim a cooling fan on it. Once you get it running, after 30 minutes of running at the vacuum you choose, pul a few drops of water (just drops) on the pump housing, if the drops evaporate instantly or the dance less than 3X them evaporate, you need more oil or more cooling fan.
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1320 taps on vacuum, 2015, 700 in 2016, 750 for 2017,
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2012 Mahindra tractor/cab/loader/AC
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  #13  
Old November 1st, 2017, 11:54 AM
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Location: Oneida, NY
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How much vacuum you trying to get? At 15" like it was designed likely a 1HP electric or a 3.5 HP gas, if ramping it up to 20-24" you will need most likely a 5-6.5 gas or a 1.5-2HP electric.
Also, if you go much over 15" you must get more oil flow to the bearings and might want to aim a cooling fan on it. Once you get it running, after 30 minutes of running at the vacuum you choose, put a few drops of water (just drops) on the pump housing, if the drops evaporate instantly or the dance less than 3X them evaporate, you need more oil or more cooling fan.
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1320 taps on vacuum, 2015, 700 in 2016, 750 for 2017,
up to 850 in 2018
2012 Mahindra tractor/cab/loader/AC
www.cnymaple.com
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  #14  
Old November 2nd, 2017, 09:02 AM
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I think it is cool that the old dairy equipment is finding new uses in the Maple industry! Another option, for around 100 taps, a lot of people are using a small diaphragm pump like the Shurflo. It's a cheap and simple setup for that many taps. They are lower power which is good if you are using batteries, they draw less than 20 watts but should to be turned off at night or when sap isn't flowing. I get 25" vacuum or more on my setups with 25 to 35 taps.

Dave
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  #15  
Old November 3rd, 2017, 07:09 AM
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Thank you for the help. I got it back together last night and it works excellent. I didn't have a vacuum gauge to see how much vacuum it was producing but it ran smooth for about an hour testing it out.
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  #16  
Old November 3rd, 2017, 10:27 AM
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To use that pump you need both a releaser and a moisture trap. Both can be homemade if you are good at such. There are several threads on here for both. However, if you need to buy them, the cost will far out pace the cost of a diaphragm pump, which need neither a releaser nor a moisture trap.
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1320 taps on vacuum, 2015, 700 in 2016, 750 for 2017,
up to 850 in 2018
2012 Mahindra tractor/cab/loader/AC
www.cnymaple.com
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  #17  
Old November 4th, 2017, 07:45 PM
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I may end up going with a diaphragm pump for this year. I've been trying to pick up a piece at a time as I can afford it.
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