The guide member is held in position by a column support between {TAIL ~ the housing} and {HEAD ~ the upper side} of the guide 
The guide member is held in position by a column support between { TAIL ~ the housing } and { HEAD ~ the upper side } of the guide
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH