This site is not affiliated with AGCO Inc., Duluth GA., Allis-Chalmers Co., Milwaukee, WI., or any surviving or related corporate entity. All trademarks remain the property of their respective owners. All information presented herein should be considered the result of an un-moderated public forum with no responsibility for its accuracy or usability assumed by the users and sponsors of this site or any corporate entity.
The Forum Parts and Services Unofficial Allis Store Tractor Shows Serial Numbers History
Forum Home Forum Home > Allis Chalmers > Construction and other equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login


Converting revolution per thousand to hours
 Post Reply Post Reply
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
A310 View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 30 Nov 2017
Location: Kelowna, Canada
Points: 105 		Post Options Post Options   Thanks (0) Thanks(0)   Quote A310 Quote  Post ReplyReply Direct Link To This Post Topic: Converting revolution per thousand to hours
    Posted: 24 Jan 2018 at 9:17pm
Hey guys and gals,

I'm in the process of restoring a 1965 Allis Chalmers FDX40-24 forklift with a Buda D175 diesel engine.  The hour meter is not hours but revolutions/thousands.  At the moment the unit has 215350 thousand revolutions.  Does anyone know if there is a table for this, my manual mentions a table but does not have one.  If I divide this number by 60 to get hours at 1000 rpm average I get 3589 hours on the engine.  Am I in the right ball park or missing something?  

Thanks

Harling

P.S.  First cold start and run up with coolant system restored:
Back to Top
Sponsored Links


Back to Top
DiyDave View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 51674 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jan 2018 at 4:53am
You're in the right ball park, but, it depends on what ave running rpm really is...Wink
Back to Top
DMiller View Drop Down
Orange Level Access
Orange Level Access


Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 31067 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jan 2018 at 6:28am
In engines the hours were determined for full power rpm usage. Slower rpm less hours accrued on a mechanical gauge. My 180 tach will tabulate hour to clock hour at roughly PTO rated speed as I have found, not full tach speed but pulling speed. Electronic meters just clock time running.

As a best guess for your machine, where the HP rated RPM is would be the hour to hour rate and without knowing where the tach drive or if is on a reducer gear as my 180 is off the back of the alternator there is not much standard to base on.
Back to Top
A310 View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 30 Nov 2017
Location: Kelowna, Canada
Points: 105 		Post Options Post Options   Thanks (0) Thanks(0)   Quote A310 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jan 2018 at 9:05am
Ok thanks for the replies guys, I just thought it very odd to track time this way and thought there was a more accurate way to figure it out.  I'll run the unit and figure what average rpms I do and go from there.:)
Back to Top
steve(ill) View Drop Down
Orange Level Access
Orange Level Access
Avatar

Joined: 11 Sep 2009
Location: illinois
Points: 81128 		Post Options Post Options   Thanks (1) Thanks(1)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jan 2018 at 7:41pm
I might guess the actual "average" rpm is more like 1500.
Like them all, but love the "B"s.
Back to Top
A310 View Drop Down
Bronze Level
Bronze Level
Avatar

Joined: 30 Nov 2017
Location: Kelowna, Canada
Points: 105 		Post Options Post Options   Thanks (0) Thanks(0)   Quote A310 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Jan 2018 at 8:36pm
Thanks.:)
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 11.10
Copyright ©2001-2017 Web Wiz Ltd.

This page was generated in 0.078 seconds.


Help Support the
Unofficial Allis Forum