Fill vent

Freywil

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I cannot find the fill vent on the hydro gear of my ZT HD44 zero turn
 

gainestruk

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I just looked at exploded view and the item number list on Hydro Gear 3100 and I don't see one. 🤔
 

StarTech

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The Gravely 991160 uses a hydro oil reservoir system. This serves at the vent and fill port. The normal vent location just has a plug in it the system may even the use same hole that normally have the vent attached.
 
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