Hello I just bought a bobcat 632 that had a bad coupler. I fixed that and everything started to work, But the left side reverse is very lazy. When I move the sticks forward both sides move and have power (Right side has a little more). The if I want to make a left turn and I pull back on the left stick the thing kind of freewheels if I go all the way back into reverse the thing kind of makes a hyrostatic going through a relife valve noise. This unit has 3400 hr on it and I know nothing about its history. it was soposed to come with a manual but the guy could not find it. Please help me. I would like to jet some work done with it.