If you try and remove the allen screws in the cover, there is an EXCELLENT chance of breaking them. There are no serviceable parts in there, and a fine wire that you'll probably break getting the unit open.
See Dan Horton's autopsy of one several years ago. The failures we;ve seen were at the wiring harness at the transducer body. So some reason, they break there---might be from harness vibration.
Vic is also correct about the RV14 issues----several have relocated the unit with good results, others have firesleeved them and given some strain relief to the harness.
OH---and as an update---WE have made some minor changes to our mounting bracket to better fit a 'newer' version of the 75009 Lycoming flow divider bracket. The originals we build we prototyped using an OE Lycoming bracket. After 5 years in service, several of you reported a misfit in the aft angle of the bracket verses the Lycoming mount. So we purchased one, and YES there is a minor difference in the 2 Lycoming brackets. Same part numbers, but a difference in the upper bend, and that changed the angle. So we made a revision change, and also opened up the inside roof alittle more to accomodate an easier install. WE should have the next production run shortly.
Tom