How long should it help yourself to to inflate the 4 1/2 gal container on a Husky airless compressor? My dad gave me a Husky (contractor's type) pancake compressor. It's...

My dad gave me a Husky (contractor's type) pancake compressor. It's 125psi near a 4 1/2 gal tank. It wasn't working, so I tore it down. The valve seem OK but I obligation to know about how long it runs back reaching shut off pressure. I repaired the broken nouns line at the regulator and am getting pressure at the pumps outlet.
Any info is greatly appreciated as I other had Emglo's beside Honda engines or electric for my nail guns. Never repaired an oilless element before.
Thanks guys.
Waxing and or polishing floor?
Answers:    Depends on the H.P. but probably 2-3 minutes.
Where to find tecumseh engine specs?