You screw them in and maybe later screw them out, I don't see any 'maintenance'
Just the same as any other screw.
it is best to use the right size of philip screwdriver because this will prevent the screw to be from loosen its thread.
Philip Martin Bradley has written: 'Factors affecting the development and maintenance of the purkinje cell dendritic tree'
screw is low maintenance than reciprocating reciprocating is more saving for power supply the compressors in screw is semehermatic but in reciprocating is open
there are clips on the sides or Philip screw looking clips on those push down then turn
1- to get the best fit with the screw head 2- to reduce damage to the screwhead and driver if the driver bit is to small 3- reduce chance of damage to the work piece 4- reduce the chance of stripping the head of the screw when tightened and thus making it difficult to extract.
Phillips head screwdrivers only work on Phillips head screws--which are ones with an "x" indentation on the head of the screw. A straight screwdriver works on screws with a single line indentation on the head of the screw.
it is best to use the right size of philip screwdriver because this will prevent the screw to be from loosen its thread.
A Phillips screwdriver shaft is round with a pointed head with 4 tapering splines that engage the cross shaped indent in the screw head.
1- to get the best fit with the screw head 2- to reduce damage to the screwhead and driver if the driver bit is to small 3- reduce chance of damage to the work piece 4- reduce the chance of stripping the head of the screw when tightened and thus making it difficult to extract.
other than routine oil changes, the maintenance is allmost care free. the only other thing to worry about is the valve adjustment, and they are easily adjustable with a set of feelers and a straight slot screw driver by removing the caps on the cylinder head.
to adjust horizontal there there is a Philip's screw slot to the center left [left lamp] center right [right lamp] Vertical top over by each top.