hi,just to mention,before you remove the cover,mark its position,the bolt holes are not equally spaced,it will save you some hassle when you come to put it back on.............also,GENTLY tighten the fixing bolts in a criss cross pattern,not too tight,just nip them up,if you can,use a 1/4 drive socket set,you will get less leverage with a small wrench and not risk stripping threads etc,
have fun!