PILOT’S OPERATING HANDBOOK GROUND SERVICE PLUG
SUPPLEMENT RECEPTACLE
MODEL 152
1 July 1978 1 of 2
Revision 1 – 31 March 1983
SUPPLEMENT
GROUND SERVICE
PLUG RECEPTACLE
SECTION 1
GENERAL
The ground service plug receptacle permits the use of an external power
source for cold weather starting and lengthy maintenance work on the electrical
and electronic equipment. The receptacle is located behind a door on the left
side of the fuselage near the aft edge of the cowling.
The battery and external power circuits have been designed to completely
eliminate the need to "jumper" across the battery contactor to close
it
for
charging a completely "dead" battery.
A
special fused circuit in the external
power system supplies the needed "jumper" across the contacts so that with a
"dead" battery and an external power source applied, turning the master switch
ON will close the battery contactor.
SECTION 2
LIMITATIONS
The following information must be presented in the form of
a
placard located on
the inside of the ground service plug access door:
CAUTION 24 VOLTS D.C.
This aircraft is equipped with alternator and a negative ground system.
OBSERVE PROPER POLARITY Reverse polarity will damage electrical
components.
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