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  1. #1
    Gold Member
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    1947 Massey Harris 30, 1960 Massey Ferguson 35 (Perkins), 1995 TAFE 351DI, 1980 Bolens G174, 2005 Kubota B7510

    Default Has anybody run a PTO generator with a Bolens G174?

    I just bought a BAUMALight 7.2 kw pto generator for use as backup power for the twin houses on the property. The main generator tractor will be the kubota B7510 with its 540 rpm pto and tachometer. But the G174's the garage queen, spending its winters largely nestled beside the box stove in my shop. In extreme cold and a power outage, it'd be the one to start.

    I'd assume I'd need to run it in 2nd pto gear (peaking at about 750 rpm) with the engine throttled back to about 2000 rpm to get the right voltage. This would reduce available horsepower (and fuel consumption), but might very well be enough for the job.

    Has anybody tried it?

    The reason I scoured the country for a used 7.2 kw instead of the larger models is that my generator panel takes only 30 amps and the power cord through several feet of concrete into the basement maxes out at 30 amps as well. Why go bigger?

  2. #2
    Elite Member
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    Apr 2004
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    East Coast of Lake Huron
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    Deere, several

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Bolens G174 Power:
    Engine: 17 hp [12.7 kW]
    Power Take-off (PTO):
    Rear PTO: transmission
    Rear RPMs: 472/752/1177
    Engine RPMs: 472@2700
    752@2700
    1177@2700

    It's a odd ball gray market tractor that will ruin electrical equipment is operated at any of the three rated pto rpms. You will have to obtain a "kilowat" meter, plug it in and derate rpms while in medium pto speed to 1940 crankshaft rpm.
    Available engine power will drop from 17 to 12 flywheel HP. Losses in transmission etc will make out the max possible of 7KW alternator out.
    Don't try trusting your ear or the factory dash tachometer to guess the rpms with either.

  3. #3
    Gold Member
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    Apr 2010
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    Forfar, Ontario, Canada
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    1947 Massey Harris 30, 1960 Massey Ferguson 35 (Perkins), 1995 TAFE 351DI, 1980 Bolens G174, 2005 Kubota B7510

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Quote Originally Posted by buickanddeere View Post
    Bolens G174 Power:
    Engine: 17 hp [12.7 kW]
    Power Take-off (PTO): 15 hp
    Rear PTO: transmission
    Rear RPMs: 472/752/1177
    Engine RPMs: 472@2700
    752@2700
    1177@2700

    It's a odd ball gray market tractor that will ruin electrical equipment is operated at any of the three rated pto rpms. You will have to obtain a "kilowat" meter, plug it in and derate rpms while in medium pto speed to 1940 crankshaft rpm.
    Available engine power will drop from 17 to 12 flywheel HP. Losses in transmission etc will make out the max possible of 7KW alternator out.
    Don't try trusting your ear or the factory dash tachometer to guess the rpms with either.
    Buickanddeere:

    Good to hear from you. We used to correspond a bit on Yesterday's Tractors a few years ago.

    I have a Kilowatt meter ordered.

    According to the online manual the 7.2 KW generator needs 11 PTO hp for full output and requires 5 hp for 50% output. I'm pretty sure the Bolens is not a gray market machine. At your suggested revolutions the tractor can run a 4' rotary mower without difficulty, or a 4' finish mower.

    -------------------------

    As I recall you know electricity. I have an unrelated question: My 5 KW Honda EM was making 125/250 and seemed quite loud the day it wouldn't start our 1/2 hp water pump on 240. Neither would it start the stair climber on 120 in my mother's wing of the house.

    Lights would work, though they flickered, and a light 1/2" drill ran reasonably well.

    My electrician friend had never seen anything like it. But then he's never seen anything I have cleaned the carburetor on before.

    We eventually hooked up a 5 KW Coleman and everything ran fine.

    The Honda dealer told me the generator's not worth fixing.

    Opinion?

    Thanks,

    Rod

  4. #4
    Platinum Member Ilikeurtractor's Avatar
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    Iseki TX1300F/TX1500/ TX2160F/TS2220F/ Satoh S373D

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Quote Originally Posted by buickanddeere View Post
    ...Available engine power will drop from 17 to 12 flywheel HP.
    How are you calculating the 12hp? IIRC, Rod's engine is the KE75. I'd love to see a power curve for this engine if anybody has one.
    One nice thing about being average is you're not alone.

  5. #5
    Platinum Member Ilikeurtractor's Avatar
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    Iseki TX1300F/TX1500/ TX2160F/TS2220F/ Satoh S373D

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Rod,

    What are your minimum power requirements? I'm assuming you just want to run a furnace, fridge, and a few lights at a minimum. You should be able to do this pretty easily with 3 kW. Your G174 should do this just fine. Like buickanddeere stated, pick up a meter (kill-a-watt or equivalent) and use the frequency setting to dial in your frequency - I believe you run 50 Hz where you are (?) I question the ability of the governors on these tractor engines to hold rpms well, but they should be good enough in an emergency. Let us know when you test it out
    One nice thing about being average is you're not alone.

  6. #6
    Elite Member zzvyb6's Avatar
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    michigan
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    jd 1070

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Heck, I run my 50KW Winpower off of my lawn mower equipped with a reduction geared PTO stub shaft. 22 HP F-035 does a fine job at reduced rpm. I use the Kill-A-Watt for frequency and voltage monitoring.
    There is no "I" in team, but there is a "Me" if you want to jumble it up a bit...

  7. #7
    Elite Member
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    Deere, several

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Quote Originally Posted by Ilikeurtractor View Post
    Rod,

    What are your minimum power requirements? I'm assuming you just want to run a furnace, fridge, and a few lights at a minimum. You should be able to do this pretty easily with 3 kW. Your G174 should do this just fine. Like buickanddeere stated, pick up a meter (kill-a-watt or equivalent) and use the frequency setting to dial in your frequency - I believe you run 50 Hz where you are (?) I question the ability of the governors on these tractor engines to hold rpms well, but they should be good enough in an emergency. Let us know when you test it out
    Where do you think we live?

  8. #8
    Elite Member
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    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Quote Originally Posted by Rod in Forfar View Post
    Buickanddeere:

    Good to hear from you. We used to correspond a bit on Yesterday's Tractors a few years ago.

    I have a Kilowatt meter ordered.

    According to the online manual the 7.2 KW generator needs 11 PTO hp for full output and requires 5 hp for 50% output. I'm pretty sure the Bolens is not a gray market machine. At your suggested revolutions the tractor can run a 4' rotary mower without difficulty, or a 4' finish mower.

    -------------------------

    As I recall you know electricity. I have an unrelated question: My 5 KW Honda EM was making 125/250 and seemed quite loud the day it wouldn't start our 1/2 hp water pump on 240. Neither would it start the stair climber on 120 in my mother's wing of the house.

    Lights would work, though they flickered, and a light 1/2" drill ran reasonably well.

    My electrician friend had never seen anything like it. But then he's never seen anything I have cleaned the carburetor on before.

    We eventually hooked up a 5 KW Coleman and everything ran fine.

    The Honda dealer told me the generator's not worth fixing.

    Opinion?

    Thanks,

    Rod
    Sorry my memory is embarrassing poor, in particular if I do 't see the person to attach the name to. It's caused all manner of blank spots to try and work around. If I seen a few old conversations I'm certain recall would occur.
    Prior to Y2K generators sold for $1000 a KW. Now they sell for $100 per KW. Depending on the Honda's condition and fault. The plan may well be to wait for Canadian Tire or TSC to put those "Champion" units on sale again.
    Just as a wild guess , the voltage regulator maybe failing ? Engine rpms are vital too.
    iirc there is or was a well stocked shop on HWY 2 . East of Newcastle out towards newtonville . They carried of could obtain parts for any compact, sub compact tractor.

  9. #9
    Platinum Member Ilikeurtractor's Avatar
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    Iseki TX1300F/TX1500/ TX2160F/TS2220F/ Satoh S373D

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Quote Originally Posted by buickanddeere View Post
    Where do you think we live?
    Rod's description says Canada and I thought an electrical guy I work with said Canada was on 50 Hz when the subject came up a few weeks ago but I just googled it and it does appear to be 60 Hz.
    One nice thing about being average is you're not alone.

  10. #10
    Gold Member
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    1947 Massey Harris 30, 1960 Massey Ferguson 35 (Perkins), 1995 TAFE 351DI, 1980 Bolens G174, 2005 Kubota B7510

    Default Re: Has anybody run a PTO generator with a Bolens G174?

    Quote Originally Posted by Ilikeurtractor View Post
    Rod,

    What are your minimum power requirements? I'm assuming you just want to run a furnace, fridge, and a few lights at a minimum. You should be able to do this pretty easily with 3 kW. Your G174 should do this just fine. Like buickanddeere stated, pick up a meter (kill-a-watt or equivalent) and use the frequency setting to dial in your frequency - I believe you run 50 Hz where you are (?) I question the ability of the governors on these tractor engines to hold rpms well, but they should be good enough in an emergency. Let us know when you test it out
    Up here in the Great White North we run 60 hz. The basic winter load is two forced air furnaces, a 1/2 hp water pump on 220, two fridges, one freezer, a 120 v stair climber and a few efficient lights. 20 amps 220 runs it well, so I plan to add a couple of circuits (living room and bedroom stuff) when we go to 30 amps with the new generator.

    I have a Kill-a-Watt ordered. Today I spun the BAUMALight up with the Kutota and had 128 volts at PTO speed. I needed to ease it down to where things were quieter to get to 123 volts by my multimeter, about 2400 rpm instead of 2600.

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