I have 1987 TB 14. I bought as a project. I have it working now but just recently developed a problem with the stick not retracting .Extends fine but won't retract. I've eliminated the cyl. and the lines as the problem. Appears to be something to do with the control valve. When the lever is pulled to crowd the stick , the engine loads up but nothing happens. The picture attached shows the valve in question. the one with the yellow paint markers on the hyd. lines.
This is the valve in question. Hyd.lines marked with yellow.
Don't see any image posted. Post image of machine and serial number. Email me and I can send you the service manual and parts manual TB014/TB016
Let me know if you need more info.This machine has a 3 cyl Yanmar diesel. Model 3T72LE -TBS.