F-940 Instruction Manual rev. 11/26/2019
1554 NE 3
rd
Ave, Camas, WA 98607, USA
83
Phone: (360) 833-8835
www.felixinstruments.com
4. Replace the Oxygen (O
₂
) Sensor
a. Unplug the red and black cable
connector by gently pulling the
white fastener out the end of the
red O
₂
sensor. *Do not use the
cables to pull
b. Unscrew the O
2
sensor
(counterclockwise).
c. Gently screw in the new sensor
(clockwise) four full turns stop
when you feel resistance
—
do
not overtighten
, threads will
strip and prevent the sensor
from working accurately.
Summary of Contents for F-940
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