Page 11 of 11 FirstFirst ... 891011
Results 101 to 108 of 108
  1. #101
    Platinum Member
    Join Date
    Dec 2010
    Posts
    877
    Tractor
    Massey

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    Quote Originally Posted by daugen View Post
    One of the big problems in running gasoline or diesel portable gens is not giving them enough load. After installing a 20kw Generac stand by unit on my home, I loaned my 5kw portable unit to a friend. Got it back a year later fresh out of the shop having had the cylinder and head cleaned of excess carbon. Guess I should have told him to put a space heater on it if running light, which is what I do when I use my portable on the farm. I don't worry about carbon with the Generac since it's LP powered, and obviously running a gas or diesel tractor at pto rpm isn't going to be an issue other than fuel consumption. Most of the times we lose power is in bad weather, perhaps like most, and
    leaving a tractor running outside unattended would worry me too much.
    Why would a modern portable gas generator running unleaded fuel, develop a troublesome head carbon build-up during a light load? An oil burning worn engine..yes.
    And you say it isn't an issue with a gas engine tractor? I've never heard of such a thing.

  2. #102
    Platinum Member
    Join Date
    Dec 2010
    Posts
    877
    Tractor
    Massey

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    Quote Originally Posted by dex3361 View Post
    I decided to run the PTO generator today while I cut the grass. I isolated the garage and turned the garage and upstairs lights, 1500 watt heater, drill press, fan, belt sander, and grinder. Totaling 3.45KW. I ran this for 4 hours exactly and the tractor used 4.1 gallons of diesel. The load was unbalanced with and here are the details:
    Volts- L1-ground- 117V
    Volts- L2-ground- 124V
    Volts- L1-L2- 241V

    Amps L1-27.5A
    Amps L2-4A

    Watts 3.45KW

    I was surprised at how ineffiecient it was on fuel. It could have been because of the imbalance of the loads or that it was lightly loaded. I will likely do the same test with a larger load that is balanced.

    After I finished I changed the gear box oil. I took the drain plug out and it was under great pressure for a gear box. I checked the breather and it has a spring loaded ball check. I pulled the spring and it was very stiff. I deemed it too stiff and replaced it with a much shorter and less stiif spring. I didnt see much in the break in oil except a few fines from the gears meshing. Voltage was stable and the frequency was rock solid.
    Dex, An interesting test "in the name of science" would be if you ran the tractor with all the same conditions, with the exception being that you have the generator pto shaft disconnected. That will let you see how much of the total fuel is being used, just to spin the tractor pto stub at that speed.

  3. #103
    Elite Member
    Join Date
    Feb 2012
    Posts
    4,453
    Location
    Holland, PA
    Tractor
    Kubota L5740, Case IH 255, Gravely 8199G

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    I learned this with my boat generator, being told early not to run at light loads. Diesels of course need to get hot to be efficient, and apparently low load situations created a variety of problems.
    I'm not exactly sure why gas engines do this, but over time, this is a recognized problem, and the repair shop my gen was fixed at said they see this all the time. I'm not making this up...
    Not sure if ethanol is a factor here, but carbon builds up on the head, the piston top and the valves/valve seats and in my case, the engine would no longer start. Hopefully someone else can chime in here with a better
    answer.
    2012 Kubota L5740HSTC3 with FEL and Long grapple, 1986 Case IH 255, Land Pride PD10 PHD, Land Pride RCR60 & RCF2084 mowers, Land Pride 4' box blade and rear rake, Fred Cain subsoiler, County Line potato plow, County Line 1 bottom plow, 1986 Gravely 8199G with tow behind DR rototiller, 50" deck+40" Gravely wing mower, Gravely snowblower, Swisher 44 rough cut mower,Ariens snowblower, Echo 450-18 & 600-24, Echo PPT280, 2006 JD LX280, , 1968 Cub Cadet 125, Husky-Speeco 35 ton splitter

  4. #104
    Elite Member dex3361's Avatar
    Join Date
    Aug 2008
    Posts
    3,568
    Location
    N. of Charleston WV
    Tractor
    Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    Quote Originally Posted by daugen View Post
    I learned this with my boat generator, being told early not to run at light loads. Diesels of course need to get hot to be efficient, and apparently low load situations created a variety of problems.
    I'm not exactly sure why gas engines do this, but over time, this is a recognized problem, and the repair shop my gen was fixed at said they see this all the time. I'm not making this up...
    Not sure if ethanol is a factor here, but carbon builds up on the head, the piston top and the valves/valve seats and in my case, the engine would no longer start. Hopefully someone else can chime in here with a better
    answer.
    Absolutely a problem to run a diesel with no load for long periods of time without getting it good and hot from load to clean out the cylinders. The condition is know as wet stacking. The diesel fuel does not completely burn under light loads.
    Last edited by dex3361; 10-15-2012 at 10:54 PM.
    Randall



    1Timothy Chapter 2:
    3 For this is good and acceptable in the sight of God our Saviour;
    4 Who will have all men to be saved, and to come unto the knowledge of the truth.
    5 For there is one God, and one mediator between God and men, the man Christ Jesus.
    From: The HOLY BIBLE

  5. #105
    Elite Member dex3361's Avatar
    Join Date
    Aug 2008
    Posts
    3,568
    Location
    N. of Charleston WV
    Tractor
    Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    Quote Originally Posted by DarkBlack View Post
    Dex, An interesting test "in the name of science" would be if you ran the tractor with all the same conditions, with the exception being that you have the generator pto shaft disconnected. That will let you see how much of the total fuel is being used, just to spin the tractor pto stub at that speed.
    Thought about doing that and it would give a baseline of what it takes to run the engine and PTO gearset.
    Randall



    1Timothy Chapter 2:
    3 For this is good and acceptable in the sight of God our Saviour;
    4 Who will have all men to be saved, and to come unto the knowledge of the truth.
    5 For there is one God, and one mediator between God and men, the man Christ Jesus.
    From: The HOLY BIBLE

  6. #106
    Platinum Member bubbacuse77's Avatar
    Join Date
    Jul 2008
    Posts
    541
    Location
    Wisconsin
    Tractor
    John Deere 3520, John Deere X749

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    Looking at Rural Kings web site, they say in the question and answer section that it is brushless.
    I would just like to know what it is, brush or brushless?

  7. #107
    Platinum Member bubbacuse77's Avatar
    Join Date
    Jul 2008
    Posts
    541
    Location
    Wisconsin
    Tractor
    John Deere 3520, John Deere X749

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    Looking at Rural Kings web site, they say in the question and answer section that it is brushless.
    I would just like to know what it is, brush or brushless?

  8. #108
    Elite Member dex3361's Avatar
    Join Date
    Aug 2008
    Posts
    3,568
    Location
    N. of Charleston WV
    Tractor
    Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm

    Default Re: Do you have the Harbor Freight 15KW PTO Generator? What do you think?

    It looks just like the generator that is on my HF unit. My HF generator has brushes. I cannot say for sure about the Rural King generator though as I have never seen one up close.
    Randall



    1Timothy Chapter 2:
    3 For this is good and acceptable in the sight of God our Saviour;
    4 Who will have all men to be saved, and to come unto the knowledge of the truth.
    5 For there is one God, and one mediator between God and men, the man Christ Jesus.
    From: The HOLY BIBLE

Page 11 of 11 FirstFirst ... 891011

Similar Threads

  1. Generator 15KW PTO Generator Harbor Freight
    By slotoro in forum Attachments
    Replies: 146
    Last Post: 02-18-2014, 03:50 PM
  2. 15kW PTO generator with PTO shaft and cart
    By sewerzuk in forum Private Party Ads
    Replies: 0
    Last Post: 10-16-2011, 08:05 PM
  3. Generator Harbor Freight PTO Generator
    By Mudfarmer in forum Attachments
    Replies: 31
    Last Post: 01-20-2011, 11:51 AM
  4. Replies: 6
    Last Post: 03-16-2009, 11:37 PM
  5. harbor freight generator
    By Ronbo in forum Rural Living
    Replies: 17
    Last Post: 08-17-2006, 09:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.