Hello, I own a 1988 pc-120. The hydraulics on this machine are manual. The machine has sat for 4 or 5 years. I put two new batteries in it today and it fired right up. Runs perfect. Problem- the forward and reverse control levels are frozen- stuck. Also, the boom up lever is stuck. All the other controls work. I tried to spray some pb blasted on the main control valves. I also tapped the arms with a hammer and a block of wood? Should I try and take out the control values?? They are held in by a plate and two allen head bolts? I’m a little lost at this point- Any help would be great- thanks
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