Ikelite EOS 5D Mark II - EOS 5D Mark II 21.1MP Full Frame CMOS Digital SLR Camera Instruction Manual page 24

Control Shaft
Tighten set screw down
against this flat area
when replacing the knob.
Housing
24
Diagram A
Housing
Lubricate end of shaft
before reinserting into
gland
Diagram B
Lubricate Shaft
Gland
Loosen set screw
(allen wrench required)
Pull out to
expose shaft