Little Giant 6 Series Owner's Manual page 10

OPERATION TESTING
Testing Automatic Pump Operation
Testing the Diaphragm Switch
NOTE: This test is recommended for bench testing only.
To test the functionality of the diaphragm switch without submersing it in water, suction (vac-
uum) must be applied to the open end of the breather tube (1) at the power cord plug or
stripped end of the power cord.
Suction can be applied using a suction bulb syringe (2).
The suction causes the switch diaphragm to draw inward, activating the switch inside the
switch housing. When syringe is released, the diaphragm returns to its original position deacti-
vating the switch inside the switch housing.
1. Squeeze the bulb of the syringe.
2. Insert the small end into the breather tube of the power cord.
3. Release the bulb to induce suction/vacuum.
4. Listen for the switch to make a click sound.
5. Once the suction/vacuum equalizes, listen for the diaphragm switch to release.
Testing the Float Switch
A float switch can be bench tested by using an ohmmeter to check
for continuity between the incoming and outgoing connections of
the piggyback plug while raising and lowering the float.
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