JLG 600SC_660SJC Service Manual - Manual (Page 370)

SECTION 10 - BASIC ELECTRICAL INFORMATION & SCHEMATICS
10-6 – JLG Lift – 3121157
BRAD HARRISON / PHOENIX CONTACT M12
The connector uses gold contact material to resist corro-
sion 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 contact. Once contaminated, there is no practi-
cal way to remove the dielectric grease (replacement of
female contacts required). The JLG Load Sensing System
and 1250AJP Rotary Angle Sensors are examples of com-
ponents with the M12 connector system.
AMP JUNIOR TIMER
This type of connector uses back-seals for moisture integ-
rity. However, the low-force contacts cannot displace
dielectric grease and create electrical contact. It is possi-
ble to use solvents (i.e. contact cleaner or mineral spirits)
for the removal of improperly applied dielectric grease.
The EMR2 engine control module from Deutz employs
this connector 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 power-
ful jets of water). The enclosure must be fitted with a high
quality, continuous gasket and all wiring must pass
through cable entrances.