[AT] Fw: Ih 504 2nd try??

[Mike Sloane]

I would say that you are pretty much the limits of a 1700 or 2000 series 
IH loader, but you might be having some problems due to a worn pump. You 
probably need to follow the service manual procedures for checking the 
hydraulic pressure on the system. If you are getting full pressure out 
of the pump, then you need to look to worn valves that are letting fluid 
bypass from the pressure line to the return (does it "hiss" when you try 
to lift?). You could also have a weak pressure relief valve, but you 
need to be careful when messing around with that - it is there for a reason!

Mike

Kevin wrote:

> From: Kevin 
> To: Antique tractor email discussion group 
> Sent: Tuesday, January 23, 2007 11:52 PM
> Subject: Ih 504
> 
> 
> Question  Ih 504 tractor gas burner, got it to move round hay in cold weather.
> Am having problems lifting some, is this tractor hyd system not the same as 340- 560 ? They use the same pump, this 504 has always been light in the front and seemingly weaker on hydraulic lift power than either a 340 or 560.
> Some of these rolls weigh #2000 +
> Any ideas on how to get more lifting power out of this tractor ?
> Kevin Mosier

-- 
Mike Sloane
Allamuchy NJ
<mikesloane at verizon.net>
Website: <www.geocities.com/mikesloane>
Images: <www.fotki.com/mikesloane>

I believe I found the missing link between animal and civilized man.
It is us. -Konrad Lorenz, ethologist, Nobel laureate (1903-1989)