Little red button

[phantom16]

Hoping someone can help me out. I’ve done some searching on here and can’t find an answer. I have a BX1880 and There is what looks to be a red button behind the top link above the PTO. Is this actually a button? What does it do? I couldn’t find anything in the manual.
Thanks for the help

 

[Palmettokat]

By chance are those covers on grease fittings? Look at the manual for grease fitting locations. If a true button have no idea.

 

[SidecarFlip]

Take one off and find out what's underneath.....

 

[Pepsiboy]

It is the vent for the hydro unit. Just keep it clean so it doesn't get plugged. My BX2350 has one, too.

Dave

 

[bluedunn]

Anyone know if the 60-series has one of these? I've never noticed anything behind the top-link, but then again, I've never looked either. Would it be in the same location?

 

[GeoHorn]

Do not take it off. It’s a vent. Keep it clean.

 

[phantom16]

Thanks for the info. I had no idea. Glad I didn’t try to force it off.