Then the skid plate is supported upon the ground and is manually freely moved relative to the mounting plate until {HEAD ~ its ground engaging surface} is leveled and aligned with {TAIL ~ the snow plow blade ground engaging edge} and the closely adjacent plates form an acute angle 
is leveled with
Then the skid plate is supported upon the ground and is manually freely moved relative to the mounting plate until { HEAD ~ its ground engaging surface } is leveled and aligned with { TAIL ~ the snow plow blade ground engaging edge } and the closely adjacent plates form an acute angle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH