Graco G3 Instructions Manual page 28

Pump Operation
Oil Pumps
When the oil level has reached a low warning level,
PINS 3 and 4 close, sending the signal to the controller
that the fluid has reached a low level.
Typical Low Level Output Response with Low Level Fluid in Oil Models
Closed
Contact
Position
Open
F . 30
IG
28
To ensure that a low level condition has been met, the
low level trigger must be detected for 10 continuous
seconds.
See F . 30 for an illustration of a typical Low Level Out-
IG
put response to low oil level.
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