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FEED RATE CONTROL (FRC)
The feed rate control adjusts the output by utilizing a cam and spring loaded lifter system
to control the rotation of the roller assembly according to the setting on the dial ring.
Inside the FRC is a brass spider assembly that consists of a pin with carbide tip and
spring inside the holder attached to a lifter.
When the pump is on, the spider assembly rotates. When the lifter drops into the FRC
channel, the pin engages the index plate rotating the roller assembly creating the
pumping action.
When the lifter rides on the cam, the pin is lifted inside the holder. The roller assembly
does not rotate, resulting in no pumping action.
Index pin retracts when lifted.
FEED RATE CONTROL
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Cam
FRC Channel
Brass Spider Assembly
Index Plate
Lifter, holder, and index pin spring is enclosed
Feed Rate Control
