Some of the controls have a short shaft and cannot be pulled
out exposing the shaft for lubrication. In the unlikely event one
of these controls sticks or becomes difficult to operate you can
remove the control from the housing and lubricate it, or return
the housing to Ikelite for maintenance. To remove the control,
loosen the set screw in the knob (alien wrench required);
remove the knob. If there is salt or dirt build-up on the exposed
control shaft, clean the shaft. Open the housing and gently slide
the control shaft out of the control gland. Clean and lightly
lubricate the shaft, including the end of the shaft. Slide the
shaft back into the control gland and gently slide it back and
forth a few times without fully removing the shaft from the
gland. Replace the knob, NOTE the flat area on the shaft, the
set screw in the knob should tighten down against the flat area
on the control so the knob does not turn on the shaft.
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