Sears 390.306062 Troubleshooting, C. If battery is fully charged, charging current will be

Models: 390.306062

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C.If battery is fully charged, charging current will be 0

C.If battery is fully charged, charging current will be 0

amps and green LED lamp will be lighted (see Figure 4C).

4.The charger is equipped with a self-resetting circuit breaker whi_ch protects it from temporary overloads. In

case of an overload, the circuit breaker will open. It au- tomatically resets after a short cool-down period. In some

conditions where the overload is extended the breaker

will cycle, repeating the open/reset process indefinitely. When this happens, normally the charger will emit a click- ing sound as the breaker opens and resets.

NOTICE: If the clicking sound continues for more than 30 minutes or so, check for reversed charger connections to the battery and for shorted cells in the battery.

BATTERY MAINTENANCE

NOTICE: To protect battery case from chipping and goug-

:--ing,.donot let battery sit on concrete floor. Install battery on

a shell or protective pad (plywood, 2x4s, etc.). Always irv

stall battery in a dry location that is protected from flooding.

Every three months, check battery as follows to maintain battery in best condition:

1.Unplug battery charger.

2.On batteries with removable top caps, measure specific

gravity of the electrolyte. Use a hydrometer (available at

auto parts stores). If the specific gravity of any cell is less than 1.225 or if there is more than .050 variation between

cells, replace the battery.

3.Check electrolyte level and refill as needed.

4.Check battery terminals and clamps for tightness and cor-

.... _rosion_: Clean and tighten as needed.

5.Plug in battery charger.

TROUBLESHOOTING

Pump won't run.

1.Check all connections.

2.Check for low or defective battery.

3.Check that automatic switch is free to swing up and down.

4.Blown fuse in switch circuit. Unplug pump and check to see if impeller is free to turn. If impeller is locked, remove

the housing around the impeller and remove the ob-

struction. Reassemble pump and reconnect. Replace fuse.

Motor hums but pump won't run: 1. Check for low or defective battery.

Pump runs but pumps very little or no water:

1. Make sure a check valve is installed and functioning be-

tween primary pump discharge and Backup Sump Pump

tee.".....

2.Check for obstruction in discharge pipe.

3.Discharge pipe length and/or height exceeds capacity of pump. See Table I, Page 4, for pump capacity.

4.Check for low or defective battery.

Pump cycles too frequently:

1.Tether length too short on automatic float switch. Make sure that tether is at least 2n; see Figure 2.

2.Main check valve located between discharge of primary pump and the Backup Sump Pump tee or check valve not installed or working properly. Install or repair as required.

SWITCH REPLACEMENT

1.Unplug battery charger from wall outlet.

2.Disconnect both battery clamps from battery terminals.

3.Unbolt black switch wire from battery clamp.

4.Unplug fuse holder in white wire; save fuse.

5.Make a note of tether length (see Figure 2) before loos- ening cord clamp.

6.Remove cord from cord clamp and replace with new cord. Make sure tether length is the same as the old switch's tether.

7.Strip insulation off of white wire on new switch, leaving 3/8" bare wire exposed at the wire end (see Figure 5).

8.Insert stripped wire end in small end of fuse holder half; crimp holder onto wire and check crimp for tightness (Figure 6).

NOTICE: Be sure that fuse holder half which you are in- stalling will mate with fuse holder half on pump wire.

9.Insert fuse into holder and snap halves of housing to- gether (Figure 7).

10. Remount block on band and cord clamp assembly on pump.

11.Strip black switch wire back 3/8" from end of wire. Crimp wire terminal onto end of wire and check for tightness.

12.Bolt black switch wire onto battery terminal clamp.

--'_tt-_--3/8"

Figure 5

Figure 6

Figure 7

Figure 8

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Sears 390.306062 Troubleshooting, C. If battery is fully charged, charging current will be, Pump wont run, t t---3/8