User's Manual

Repair

56 332144C

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 clean-

ing the tank.

• Level sensor sensitivity comes out of alignment

through misuse or harsh environment.

• Material density is less than normally pumped mate-

rials.

1. Ensure tank is completely empty.

2. Remove shroud (89) to expose the sensors.

3. Ensure 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 sen-

sors is covered by white tape. Remove the white tape to

access the adjustment screw.

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) counterclock-

wise until the yellow LED barely turns off.

7. Slowly turn the adjustment screw (S) counterclock-

wise an additional 1/2 turn.

NOTE: The yellow LED should stay turned off.

8. Fill tank with desired material and verify that sensor

detects material. The yellow LED will turn on when

material reaches the one gallon mark.

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.

NOTE: If the adjustment screw is turned a total 1/2 turn,

then it will not detect an empty tank.

9. Reinstall the shroud (89).

. 22: Adjustment Screw

ti21963a