CARTRIDGE GP-VALVE 2478384 - Caterpillar

General Views and Area Views
The schematic contains line drawings of the entire machine (general views). The general views include the side view and the top view of the machine. Component locations and connector locations are shown on the general view. The schematic also contains line drawings of machine areas (area views). See Electrical System Schematic, RENR5549, "305CR Electrical System" for more information.Component Locations and Connector Locations
Illustration 1 g00848937
Example of a Partial Electrical Schematic (1) Component description (2) Number of the connector (3) Socket (Female connector) (4) Pin (Male connector) (5) Total number of Pins or Sockets on the connector (6) Pin or Socket numberThe component locations are identified by numbers in white circles. The white circles are used in the general views and in the area views. Components (1) are shown in the Electrical Circuit Diagram and the components are listed on the component location chart. Area views are described at the bottom of the chart.The connector locations are identified by numbers in white circles. The white circles are used in the general views and in the area views. Connectors (2) are shown in the Electrical Circuit Diagram. The connectors are listed in a table on the schematic.Identification of Harnesses
Illustration 2 g00861170
Example of a Partial Electrical Schematic (7) Wire (8) HarnessHarnesses (8) are identified by uppercase letters such as "A", "L", or "EE". The harnesses are shown in the Electrical Circuit Diagram.Wire Identification
Wires (7) are identified by numbers (circuit identification codes), by color, and by size. The wires are shown in the Electrical Circuit Diagram. For example, a wire might be listed as 308-YL-18. "308" is the wire number (circuit identification code). "YL" is the wire color. "18" is the wire size.The wire numbers are sorted by the function of the circuit and the wires are listed in a table. For example, the wires "200" through "299" are ground circuits, and the wires "300" through "399" are basic machine circuits.The wire sizes are listed by American Wire Gauge (AWG).The abbreviations of the wire colors are shown in the following table:
Table 1
Symbol     Color    
BK     Black    
BU     Blue    
BR     Brown    
GY     Gray    
GN     Green    
OR     Orange    
PK     Pink    
PU     Purple    
RD     Red    
WH     White    
YL     Yellow