JLG 680S, Service And Maintenance Manual

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SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS
7-6 3121234
BRAD HARRISON / PHOENIX CONTACT M12
The connector uses gold contact material to resist corrosion
and an o-ring seal for moisture integrity. If dielectric grease is
mistakenly applied to this connector system, the low-force
contacts cannot displace the grease to achieve electrical con-
tact. Once contaminated, there is no practical way to remove
the dielectric grease (replacement of female contacts
required). The JLG Load Sensing System and Rotary Angle Sen-
sors are examples of components with the M12 connector sys-
tem.
ENGINE CONTROL UNIT CONNECTORS
moisture integrity. However, the low-force contacts cannot
displace dielectric grease and create electrical contact. It is
possible to use solvents (i.e. contact cleaner or mineral spirits)
for the removal of improperly applied dielectric grease. The
EMR4 engine control module from Deutz employs this con-
nector system (for example).
SEALED ENCLOSURES
Application of dielectric grease is not required in properly
sealed enclosures. To meet criteria, the enclosure must be
rated to at least IP66 (dust tight; protected from powerful jets
of water). The enclosure must be fitted with a high quality,
continuous gasket and all wiring must pass through cable
entrances.
Figure 7-7. Brad-Harrison M12
Figure 7-8. Phoenix Contact M12