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OT - The hydraulic ram on my HF engine hoist failed

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MauleDriver(at)nc.rr.com
Guest

Posted: Mon Feb 23, 2009 7:57 pm Post subject: OT - The hydraulic ram on my HF engine hoist failed

It seems that the ram on my Harbor Freight engine hoist failed.  

Suddenly, after getting my engine mounted, the ram ceased ramming.  

There was no leakage.  Pumping  had no effect.  My guess is that some 

internal seal failed.  I followed the directions to bleed it.  After 

making a bit of a mess, the ram still appears to have failed.



I don't know what to do next.  Replace the ram, the whole hoist, or 

repair. 



I'm wondering what caused it.I left the engine hanging on the hoist for 

several months (with protection but the whole weight was borne by the 

ram).  Is that the reason?



Advice is sought and welcome.



Bill "it sure looks great up on the wheels and with the engine on it" Watson

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pitts_pilot(at)bellsouth.
Guest

Posted: Tue Feb 24, 2009 12:20 am Post subject: OT - The hydraulic ram on my HF engine hoist failed

Unscrew the 'lock' on the ram all the way out and remove the ball on the 

bottom.  Then look for metal shavings in the bottom that prevents the 

ball from seating.  For me it's been  a common problem ..... from my 

hoist to floor rams, and may happen more than once on the same item.  If 

your ram slowly leaks down over time ..... same problem.  Holding 

pressure over a long period of time is normal and doesn't hurt the ram 

at all.  What probably happened was when you let the hoist down the 

hydraulic oil pushed trash from the machining through and it caught 

under the ball.  If you really tightened down on the 'lock' you may have 

pressed the trash down into the 'well' and you'll have to dig it out.

Good luck!

Linn



Bill Mauledriver Watson wrote:

 	  Quote: 	
		   

 <MauleDriver(at)nc.rr.com>



 It seems that the ram on my Harbor Freight engine hoist failed.  

 Suddenly, after getting my engine mounted, the ram ceased ramming.  

 There was no leakage.  Pumping  had no effect.  My guess is that some 

 internal seal failed.  I followed the directions to bleed it.  After 

 making a bit of a mess, the ram still appears to have failed.



 I don't know what to do next.  Replace the ram, the whole hoist, or 

 repair.

 I'm wondering what caused it.I left the engine hanging on the hoist 

 for several months (with protection but the whole weight was borne by 

 the ram).  Is that the reason?



 Advice is sought and welcome.



 Bill "it sure looks great up on the wheels and with the engine on it" 

 Watson

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

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