©Hartenberger Unterwassertechnische Geräte GmbH Rights reserved for technical changes. Issue 01.2011
10
Instructions for use Hartenberger High-Tech-UW-Lamp nano compact
OPENING THE REAR SCREW FITTING
The housing is opened by unscrewing the fitting anti-clockwise, (thread length
approx. 10 mm [3/8“]). Whilst opening the housing, it should be held in an upright
position, thus preventing the power pack from inadvertently falling out.
CLOSING THE REAR SCREW FITTING
Before closing the rear screw fitting, all threads, sealing surfaces and seals must
be checked for integrity and cleanliness. Should the sealing surfaces and/or
components be contaminated, then the O-rings and its groove should be
thoroughly cleaned. Should the sealing surfaces and/or components be
damaged, then all damaged parts should be replaced. If the O-ring (40 x 3,0
50° hardness and 48 x 1,6 50° hardness) is removed , care must be taken not to
damage the groove in which the O-ring sits. A soft blunt tool should be used for
the removal of the O-ring, i.e. a wooden tooth pick. Before the components are
refitted it is recommended that a thin coating of silicone grease is applied as
lubrication. It is recommended that after such work has been carried out, that the
seal/integrity of the housing is first checked underwater without the power pack
fitted. The housing is then closed by screwing the components clockwise
together. The screw fitting should be tightened by hand only until the parts are
mated together.
Fig. 5: Opening the rear screw fitting
