Hey, Had some very heavy wet cement drop recently. I push with a minute mount I, 8 foot. When I angle straight or to the right with a full pile in front of me the left cylinder collapses.I noticed some fluid had come out of top of the square shaped part next to the pump. It's the part that the angle cylinder hoses connect to.The fluid looks like it came from what I think is called a cartridge. It has a small round head that unscrews with a small allen key. I heard it could just be a blown o ring on the cartridge? I want to pull the cartridge out but have no experience with these things. Anybody got some mechanical advice for me? Thanks!