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MODEL 390.303301 ROD AND
FLOAT SWITCH INSTALLATION
The rod and float assembly consists of a stainless steel rod,
a plastic float, and four (4) rubber bushing stops.
The assembly must be attached to the switch arm of the
switch on the motor as follows:
See Figure 2, Page 3, for stop positions.
1. Push one rubber bushing stop (A) to middle of stainless
steel rod.
2. With rod in vertical position, slide bottom end of rod
down thru hole in solid end of float marked TOP.
NOTE: When completely assembled, end of float marked
TOP must face up towards the motor.
3. Push one rubber bushing stop (B) up on rod under float
about five inches from end of rod.
4. Push one rubber bushing stop (C) down from top end of
rod about three inches.
5. Insert bottom end of rod in hole in rod guide on base of
drainer.
6. Lift top end of rod up thru hole in switch arm and push
last rubber bushing stop (D) down on rod about one
inch.
7. Slide rubber bushing stop (C) under switch arm up on
rod so there is about 1/2" distance between the two top
bushings. This will allow for free movement of the switch
arm between the bushings.
8. Lift the rod up and down to check that the switch will
click and the arm does not bind on the rubber bushings.
9. When switch arm is in the up position, the bottom end
of the steel rod should be about one inch below the rod
guide.
10. Fill the sump and run pump through one complete cycle
to check switch operation.
MODEL 390.303491 ROD AND
FLOAT SWITCH INSTALLATION
See Figure 3, for stop positions.
1. Thread float rod into float until it is firmly hand tight.
2. Slide rod guide over float rod; follow it with a rod stop
bushing (A) set at about eight inches down from the top
of the rod.
3. Slide float rod up through the eye in the switch arm. Add
a rod stop bushing (B) at the top of the rod. Make sure the
rod guide is tightly clamped. Float rod must be vertical
and able to move up and down without binding.
4. Open large loop on rod guide and mount it around the
column. Fasten with screw, making sure that the float rod
hangs vertically from the switch and moves freely in the
rod guide.
5. Adjust rod stop bushings for designed level control.
6. Lift the rod up and down to be sure the switch will click
and that the arm does not bind on the rubber bushings.
The rod must also move freely in the guide.
7. Fill the sump and run pump through one complete cycle
to check switch operation.
Rubber Bushing
Stop (B)
Switch Arm
Rubber Bushing
Stop (A)
Stainless
Steel Rod
Sump Cover
Rod Guide
Float
3097 1097
Figure 3
The switch unit operates as follows:
1. When the sump is dry, the float rod hangs from the switch
arm. Its weight holds the switch off.
2. When the water rises in the sump, the float lifts the switch
rod. The buoyancy will push the switch arm up and turn
the switch on.
3. When the water is pumped out of the sump, the float
drops down again. The weight of the float will allow the
rod and switch arm to lower and turn the drainer switch
off.
DO NOT ALLOW PUMP TO RUN DRY
Pump should not be allowed to run dry prior to shutting off.
To do so voids the warranty and could ruin the pump.
If necessary, adjust the float so this will not happen.
ELECTRICAL CONNECTIONS
Risk of electric shock. The Sump Pump
has a 3-prong electric plug. The third prong is used to
ground the pump to prevent possible fatal shock. The
third prong should never be removed. Your electrical
outlet should be the 3-prong, polarized type with an
internal ground.
4
Switch
Check
Valve
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