Humminbird HDR600 SONAR User Manual


 
horizontal lines on the template. If not, tilt the template slightly so that the lower edge of the
transom falls within the allowable range.
Using a pencil or punch, mark the three mounting holes onto the transom.
Using a 5/32” bit, drill the three holes to a depth of approximately 1”. On fiberglass hulls, it is best
to start with a smaller bit and use progressively larger drill bits to reduce the chance of chipping or
flaking the outer coating.
Mounting the Metal Bracket
Use a silicone sealant to fill the drilled holes, especially if the holes penetrated the transom wall.
Align the metal mounting bracket with the mounting holes. The bracket should be positioned so
that the center slot is above the outer two slots. (This bracket and all the other hardware supplied
is top quality stainless steel for maximum strength and corrosion protection). Thread the three
wood screws into the drilled holes, but do not completely tighten.