Creation: 1.31 – 2014 2-6-1 |
6. Using the Schematics and Connection Diagrams
A. Component Codes
All components on the schematic and connection diagrams carry a designation number (e.g.
DS1, M1), which aid in identifying and discussing. The codes are as follows:
M............................................. Motor
BT ........................................... Battery
C ............................................. Major component or capacitor
CB .......................................... Circuit breaker
DS .......................................... Light
F ............................................. Air filter, fuse, or cooling fan
G ............................................. Gauge or Generator
HR .......................................... Heater
K ............................................. Relay
L.............................................. Solenoid or governor actuator
P ............................................. Port or plug
R ............................................. Resistor, rheostat, or sender
S ............................................. Switch
T ............................................. Transformer or thermostat
TB ........................................... Terminal block
V ............................................. Valve
VR .......................................... Voltage regulator
W ............................................ Jumper
X. ............................................ Receptacle
D. ............................................ Diode
H. ............................................ Horn
B. Schematics and Connection Diagrams
Included with this manual are the pages that are the exact diagrams used to construct your GPU.
When discussing with TLD field technicians, be sure to reference the 7 digit drawing number located in
the lower right corner of each drawing and have the unit’s 6 character serial number available.
Property of American Airlines
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