Graco RTX 650 - Page 4

BASIC ELECTRICAL TERMINOLOGY
RESISTANCE:
Resistance is anything that causes an opposition to the fl ow of current in a circuit.
Resistance is used to control the amount of voltage and/or amperage in a circuit.
Resistance is measured in OHMS - Ω. See Figure 3.
A common component check would be motor and clutch field windings.
FIGURE 3
--
��
Black
Red
Yel
Yel
Known Value
��
Known Value
+
-
4