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Service / specifications, Specifications – Sears 390.30579 User Manual

Page 6

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SERVICE / SPECIFICATIONS

General

A

WARNING

Risk

of

electric

shock.

When

servicing

pump

always

disconnect

power

to

electrical

outlet

and remove pump electric cord from outlet.

1. If pump does not operate;

a. Check for loose plug at electric outlet.

b. Check for blown fuses or tripped circuit breakers at

fuse box/circuit breaker box.

c. Be sure nothing interferes with action of automatic

float switch.

d. If a, b, and c above check OK, plug in a light that you

know works. If it lights, take your pump to Sears for
service. If it doesn’t light, the electrical circuit is faulty;
consult a licensed electrician.

2. Pump starts, but blows fuses/trips circuit breakers:

After disconnecting power to pump, remove the screen
and shield from the bottom of the pump and make sure
that the impeller turns freely. Remove any debris ob­

structing impeller. If pump still does not operate cor­
rectly, return it to your nearest Scars Service Department

for repairs.

3

. Pump runs, but does not empty sump:

a. Qean pump intake screen.

b. Water may be entering sump faster than the pump can

discharge it

c. Be sure vertical distance from pump discharge oudet

to discharge pipe outlet does not exceed maximum

vertical

pumping

distance

shown

in

“Specifications,”

below.

d. Be sure discharge pipe is not plugged or frozen.

TEATHERED SWITCH REPLACEMENT

NOTICE: Teathered float must be able to swing through its
complete arc without interference from sidewall of sump,
plumbing or any other object.

1. Remove pump power cord from switch plug.

2. Remove tether clamp screw and slide cord from clamp.

3

. Insert new cord in tether clamp. Put the clamp at the

same distance from the float that it was on the old switch.

4. Tighten tether clamp screw.

5

. Check sump pump operation by filling sump with water

and observing operation through one complete cycle.

A WARNING I Failure to check installation with water

in

sump

can

lead

to

improper

operation,

premature

pump failure and flooding.

SPECIFICATIONS

stock

Number

HP

Maximum

Amps

Dimensions in inches (mm)

GPM (L/min.) at Vertical Pumping Distance in Feet (M)

Length

Witfth

Height

5'(1,6)

10' (3)

15' (4.6)

20

' (6.1) 25' (7.6)

3050

1/2

7.6

9" (229)

6-1/2" (165)

11-1/2" (292)

61 (231)

56 (212)

50(189)

46(174)

43(163)

30479

1/3

9.8

9-3/4" (248)

7-5/16" (186) 11-1/2" (292)

48 (182)

39(148)

29(110)

16(61)

-

30579

1/2

12.0

9-3/4" (248)

7-5/16" (186) 11-1/2” (292}

62 (235)

53 (200)

46(174)

38(144)

26 (98)

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