Graco Reactor E-10hp Instructions Manual page 56

Repair
Reset Sensitivity
The tank fluid level sensor sensitivity may need to be
adjusted when:
• A new tank has a different insulation density than
the previous tank.
• Material build-up is on the inside or outside of the
tank. Adjust sensitivity rather than thoroughly
cleaning the tank.
• Level sensor sensitivity comes out of alignment
through misuse or harsh environment.
• Material density is less than normally pumped
materials.
1. Ensure that the tank is completely empty.
2. Remove the shroud (89) to expose the sensors.
3. Ensure that the sensor (57) and tank are properly
installed. See Adjust, page 55.
4. Locate the adjustment screw (S) above the green
and yellow LEDs.
NOTE: The adjustment screw on some tank level
sensors is covered by white tape. Remove the white
tape to access the adjustment screw.
F . 22 Adjustment Screw
IG
56
S
ti21963a
5. Use a small flathead screwdriver and slowly turn the
adjustment screw (S) clockwise until the yellow LED
turns on.
6. Slowly turn the adjustment screw (S)
counterclockwise until the yellow LED barely turns
off.
7. Slowly turn the adjustment screw (S)
counterclockwise an additional 1/2 turn.
NOTE: The yellow LED should stay turned off.
8. Fill the tank with desired material and verify that the
sensor detects material. The yellow LED will turn on
when the material reaches the one gallon mark.
NOTE: If the yellow LED does not turn on after two
gallons of the material, then the material density may be
too low and is not detected by the sensor. Turn the
adjustment screw clockwise in 1/8 turn increments until
sensor detects the material and the yellow LED turns
on.
If the adjustment screw is turned a total 1/2 turn, then it
will not detect an empty tank.
9. Reinstall the shroud (89).
332144H