Also, {HEAD ~ the weighting block} 22 is arranged at {TAIL ~ the casing} 12 in a manner to be inserted through the aperture 24 at each of the corners 
is arranged at
Also , { HEAD ~ the weighting block } 22 is arranged at { TAIL ~ the casing } 12 in a manner to be inserted through the aperture 24 at each of the corners
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH