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<p>[QUOTE=&quot;usmc60, post: 2571230, member: 76739&quot;]Again it is likely and here is a documented piece of debris.[ATTACH=full]556053[/ATTACH] No grease this is an embedded piece of silver which has been described as silver debris.I&#039;ve read condors post and agree with him that debris comes down the chute from the upsetting machine but still no one has shown me where grease could possibly enter the system between the dryer and the upsetting machine and the press. The only possible means of oil contamination would be from the press itself. Believe me those seals where out on hydraulic presses especially at the speed this press is run at. But before&nbsp; this machine is put into operation the operator goes through it thoroughly and having personally work with Teflon seals and know the failure rate and the signs of a failure will generally be indicated in your pre-inspection before operation. On most Teflon seals they are pressure seals and I&#039;m sure there&#039;s a variety of others but at least in hydraulics they work on pressure when a press sit&nbsp; idle with no pressure built up in the cylinder it is called static pressure. Teflon seals when they start to show where you will have visible signs of leakage. But during operation the seals go under pressure and in less is a major failure will not leak. This is my experience with Teflon seals in hydraulics for over 30 years. And like GD said the operator does not stand and watch every coin being struck it&#039;s impossible he has other duties to perform during striking operations and the inspector periodically checks coins for quality but not as often as you would think.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie24" alt=":blackalien:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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