Shim means are provided to adjust the vertical clearance between {HEAD ~ the throat} and the gate and horizontal clearance between the gate and {TAIL ~ the guide member} 
Shim means are provided to adjust the vertical clearance between { HEAD ~ the throat } and the gate and horizontal clearance between the gate and { TAIL ~ the guide member }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL