Lily Anderson New member Messages 22 Aug 13, 2026 #1 I have a 1993 Hitachi EX-120. After replacing some hoses, the hydraulic oil level looked low, so I added about 10 gallons. Now the oil is above the top of the sight glass. What could cause this?
I have a 1993 Hitachi EX-120. After replacing some hoses, the hydraulic oil level looked low, so I added about 10 gallons. Now the oil is above the top of the sight glass. What could cause this?