Handling instructions
for GISMA connectors
HI – 2007 - 001
Document: replaces
MV 2000-020,
MV 2000-030 and
MV 2005 - 011
First issue: 15.07.2008
Rev.-Index: -Z-
From: 29.07.2020
Page 8 of 44
Other acid cleaners, such as >50% Acetic Acid, should not be used as they may cause
deterioration of the elastomeric materials.
Chiselling and abrasive methods are not recommended. Use of a water jet is acceptable, but the
jet should not be directed onto the pins at the front and onto any elastomer part like insulators
and boot seals.
NOTE: Keep the connector mated at any cleaning operation!
7.1.5. Connector Handling
Installation instruction for jam nut receptacles and flange receptacles according MV 2004-034 or
customer design.
The mounting hole and the supporting surface must be clean and without any damages.
Pre Mating Check
The connector that is to be joined must be free of dirt and foreign matter. Coaxial- and fibre-
optic inserts must be protected against moisture.
Insulator greasing
Before the initial coupling the front side of the socket connectors must be greased with
GISMA-grease EK2 (part no.: GISMA-FETT EK2), to fill the conical seal cavities with grease
(see drawing below). Greasing ensures that the two elastomer Insulators in the conical seals
can slide perfectly into its final position and thus best seal. After 5 underwater matings the
connector must be greased again (applies only to series 10).
For greasing the GISMA connectors - Grease EK2 is specified. The corresponding
compatibility of this Grease is with all elastomers used in GISMA (insulating, sealing
elements) given. At the same time, this product has excellent properties.
The grease EK2 is not conductive. By mating the GISMA connector the contact forces
applied mean the grease is completely displaced from the contact area, so that the grease
does not affect the contact resistance. At the same time this ensures a high Insulation
resistance - even with insertions in moist environments.
Typical properties
reduced friction and wear
prevents leakage
contact oxidation resistance
neutral against plastics
Amount of grease to be used
The Insulator should be greased so that the insulating sealing cone is 70-100 % filled with
grease.
Attention
For hybrid connectors (eg fibre optic and coax combined) it is necessary to ensure that only
the region of the insulating elastomer must be greased. Fibre-optic and coaxial contacts
must be kept absolutely free from grease to prevent losses.