JRC JLN-900 Installation And Instruction Manual page 57

11. Pre-mounting of the Tube Bracket. See picture below!
Ensure that the Connecting tube and the contact surface of the Tube brackets are
clean.
Use MoS2 grease on the Tube brackets M12 Screw threads.
Mount the two clamping parts close up against the Cable Gland and slightly
tighten the two M6S M12x55 Screws with Spring Washers in order to allow lifting
the complete assembly by the Tube Bracket.
Transducer fully retracted into Valve Cover – Tube Bracket pre-mounted
12. Before lifting the assembly vertically, arrange assisting personnel or a support rope or
sling around the Tube Bracket to securely hold the Transducer in fully retracted
position inside the Valve Cover during the mounting procedure on the Sea Valve.
13. Place a gasket, Seal 2, centred with the screw holes on the clean Sea Valve top flange.
Gasket Seal 2
4-19