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Unexpected oil change!

1582 Views 14 Replies 6 Participants Last post by  GoldenCove
Hi guys,

It is prime leaf collection season here at Golden Cove and as I was getting going with the 446 this morning I noticed an extreme amount of oil pumping out on my mower deck and lawn! You guessed it, a hydraulic pipe split...which worries me. Anyhow of to TSC I went to get some new hoses. So I find myself changin the oil in my hyrdaulic system least I know it is clean!

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As long as you're having fun, then it's all good.
You don't use teflon tape on hydraulic systems. Use a high quality pipe sealant that comes in a can or tube.
One of the problems with using teflon tape is this that you might get away with no issues the first time you put something together but what about the next time? If you unscrew a NPT fitting and a piece of that teflon tape remains in the female or it falls into the female fitting unnoticed, then that piece could be pushed into the oil stream. From there, it could get lodged in the holding valve and create havoc there.

I don't disagree that it can be used successfully but to me, it just isn't worth the risk. If I never use teflon tape on a hydraulic system, then I never have to worry about chunks of it ending up in the system should I have to take something apart, such as changing a blown hose. You only have to have this happen to you one time and then you will never use tape again.
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