[AT] Hydraulic hoses

[charliehill]

LOL, David I wasn't being critical of you BUT if you don't leave it up you 
don't need to worry about leak down.  Being left up is what causes leak 
down.  When you are running the tractor with the lift up, the pump is 
running, the fluid is by passing and there is constant pressure on the 
system.  When you cut the motor off with the lift raised the fluid trys to 
leak backwards through the system and out around the seals.

Charlie
----- Original Message ----- 
From: "David Bruce" <davidbruce at yadtel.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Thursday, August 13, 2009 8:01 AM
Subject: Re: [AT] Hydraulic hoses


> All good points and to clarify I don't store the tractor with the loader
> raised but I have left it in a raised position to check for leak down.
>
> David
> NW NC
>
> Mike Sloane wrote:
>> Not to lecture, but the instructions for virtually all hydraulic
>> equipment state, when done with the machine even for only a few minutes,
>> to lower everything to the ground and relieve the pressure on all valves
>> by cycling them. There are two issues here: 1. safety - a raised boom or
>> other tool can drop very quickly if someone accidentally moves a lever
>> or a hose fails, and it could fall on someone in the area, and 2.
>> leaving pressure on the system when idle puts a strain on the system and
>> can cause premature wear (especially old hoses). Also, kids love to play
>> on idle machines and love working all the levers.
>>
>> Just my 2 cents,
>>
>> Mike
>
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