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#4700105 - 03/19/18 07:38 PM Generator Maintenance
doolah02 Offline


Registered: 04/27/14
Posts: 153
Loc: FL USA
I was wondering how often should I exercise my generators. How long
should I let them run?

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#4700109 - 03/19/18 07:40 PM Re: Generator Maintenance [Re: doolah02]
simple_gifts Offline


Registered: 07/26/04
Posts: 11988
Loc: Middlesex County CT
any hints on what type or size? 50KW diesel, 2KW hamster driven?
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#4700125 - 03/19/18 07:52 PM Re: Generator Maintenance [Re: doolah02]
gman2304 Online   content


Registered: 08/11/11
Posts: 3086
Loc: n.c.
Originally Posted By: doolah02
I was wondering how often should I exercise my generators. How long
should I let them run?
I have a 7,500 watt Troybilt with a 10 HP Briggs. I exercise it with a load for about an hour every 4 months or so. Ive had it for about 10 years and never had a problem. YMMV.

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#4700131 - 03/19/18 07:57 PM Re: Generator Maintenance [Re: doolah02]
gathermewool Offline


Registered: 01/09/09
Posts: 6050
I run my 2kW WEN generator every few months:

1. Idle 5 min to warm up

2. Add half load for 5 min

3. Full load for 10 min

4. 5 min cool-down

5. Off

I haven't had any issues, but my genny is still pretty much a baby, since I haven't had to use it very often, luckily.

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#4700137 - 03/19/18 08:02 PM Re: Generator Maintenance [Re: doolah02]
Donald Offline


Registered: 03/21/04
Posts: 20547
Loc: Upstate NY
I would load test every 6 months. Both legs of 220v. I would run the generator dry on blue Stabil and E0 gas.

If your really serious about having a reliable generator then it would be a propane generator, not gasoline.
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#4700141 - 03/19/18 08:04 PM Re: Generator Maintenance [Re: doolah02]
Bud Offline


Registered: 06/04/02
Posts: 1753
Loc: Texas
I run mine for 30 minutes monthly, with a load.
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#4700208 - 03/19/18 09:11 PM Re: Generator Maintenance [Re: doolah02]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
Every 6 months for 20 mins

Start, warm up, load to about 2/3 or 3/4 of running capacity (not MAX load)

Run at no load 2-3 mins

shut off fuel...... run until carb is dry.
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#4700353 - 03/20/18 05:46 AM Re: Generator Maintenance [Re: doolah02]
Bambam Offline


Registered: 12/16/03
Posts: 901
Loc: Monroe,CT
One hour load test every other month.
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#4700441 - 03/20/18 08:12 AM Re: Generator Maintenance [Re: Linctex]
boraticus Offline


Registered: 04/19/09
Posts: 2929
Loc: Canada
Originally Posted By: Linctex
Every 6 months for 20 mins

Start, warm up, load to about 2/3 or 3/4 of running capacity (not MAX load)

Run at no load 2-3 mins

shut off fuel...... run until carb is dry.



As above is likely sufficient.

I leave my Yamaha EF2000is for six months of the year for winter storage. I fill the tank, shut the air intake off, shut the fuel off and let it run until it stops to drain the carb. In the spring, I open the air to the fuel tank, turn on the fuel, give it a couple pulls and away she goes.

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#4700446 - 03/20/18 08:20 AM Re: Generator Maintenance [Re: Bambam]
doolah02 Offline


Registered: 04/27/14
Posts: 153
Loc: FL USA
I have a 20 year old 10 hp Briggs 5000 watt and a 10 year old Powermate 10 hp Subaru 5000 watt.
I usually run them once a month for 20 or 30 minutes.

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#4701043 - 03/20/18 06:51 PM Re: Generator Maintenance [Re: doolah02]
Mr_Joe Offline


Registered: 11/16/09
Posts: 579
Loc: Wisconsin
Id want non ethanol fuel in the gassers, maybe add some stable at times too.

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#4701598 - 03/21/18 08:45 AM Re: Generator Maintenance [Re: doolah02]
Astro_Guy Offline


Registered: 07/30/15
Posts: 453
Loc: Pennsylvania
I start mine up every month or so and let it run without load for maybe 15 minutes before shutting the fuel valve and running the carburetor dry. If it doesn't get a real workout after 4-6 months, then I hook it up to the the transfer switch and run it under load for at least thirty minutes. That hasn't been a problem this winter, having used it continuously for more than four hours once this month already.
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#4702069 - 03/21/18 03:06 PM Re: Generator Maintenance [Re: doolah02]
Whimsey Offline


Registered: 12/22/02
Posts: 4066
Loc: The Garden State

I purchased a new Briggs & Stratton 5500 watt Storm Responder generator in 2012, it was manufactured in 2010. About every 3 months I run it for approx 1 hour with a total 3000 watt load balanced between the 2 circuits. It runs great and produces the power needed with no issues. I installed a transfer switch and when using that I have no problem with using our tv or computers.

Whimsey

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#4702071 - 03/21/18 03:07 PM Re: Generator Maintenance [Re: Whimsey]
SatinSilver Offline


Registered: 01/24/08
Posts: 10302
Loc: OH
Originally Posted By: Whimsey

I purchased a new Briggs & Stratton 5500 watt Storm Responder generator in 2012, it was manufactured in 2010. About every 3 months I run it for approx 1 hour with a total 3000 watt load balanced between the 2 circuits. It runs great and produces the power needed with no issues. I installed a transfer switch and when using that I have no problem with using our tv or computers.

Whimsey


About how much did that run you if you don't mind me asking kind sir gentlemen?

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#4702434 - 03/21/18 08:05 PM Re: Generator Maintenance [Re: doolah02]
SilverSnake Online   content


Registered: 05/29/13
Posts: 607
Loc: Florida
I have a Generac 20KW fully automatic whole house generator. It starts and runs itself once per week for 12 minutes. That is the factory default time interval and duration and I did not change it. Gets all service as specified in the manual. Must be the correct formula because it has performed flawlessly for almost 10 years. Came in particularly handy during Irma. Power was out at our house for about 45 seconds (that's the time set to auto start). It was kind of nice being the only house in the vicinity with A/C, lights, hot water, hot food, and cold beer.


Edited by SilverSnake (03/21/18 08:09 PM)
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2018 Jeep GC, 5.7L-360 HP (PUP 5W-20)
2008 20KW Generac (Amsoil 10W-30/30)

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