5. Retighten set screw securely. Set screw head must
bepositioned facing motor covering seam (indentation).
(Positioning of this screw is critical to avoid misalignment and
subsequent diaphragm damage.)
Upper
Housing, Check Valve
6. Reassemble upper housing (1) and slide clips (8)
7. Properly seat O-Ring in check valve assembly (2) and checkif
ferrules and screen are in place on upper housing (1)
8. Install check valve (2) into upper housing (1) and push in.
9. Assemble on to lower housing (4), align 4 screws on to
motorby rotating lower housing (4) if necessary to align feet.
10. Tighten screws evenly to 30 in. lbs. torque.
Pressure Switch
1. Place switch against front of pump (9), insert screws and
takecare not to cross thread or strip out threads in housing.
2. Reconnect wires.
AUTOMATIC WATER SYSTEM PUMP SERVICE PARTS
MODEL#
KEY#
DESCRIPTION
4405-143
4405-343
4405-443
0
Service Kit*
20409-043
20409-043
20409-043
1
Upper Housing With Clips
20404-002
20404-002
20404-002
2
Check Valve Assembly
20407-030
20407-030
20407-030
3
Diaphragm Assembly (includes screws)
20403-040
20403-040
20403-040
4
Lower Housing Assembly
20419-001
20419-001
20419-001
5
Motors
2009-073A
2019-023A
2049-025A
Motors CE Models
R2009-073A
R2019-023A
—
6
Ports - 1/2 Barb (pair)
20381-002
20381-002
20381-002
Ports - 1/2 Qest (pair)
.20381-000
20381-000
20381-000
Ports - 3/4 Barb (pair)
20381-006
20381-006
20381-006
7
Pump Head Assembly
20406-003A
20406-003A
20406-003A
8
Side Clips (pair)
20408-000
20408-000
20408-000
9
Pressure Switch Assembly
02090-104
02090-104
02090-104
*Service Kit includes #2, #3, #8 and drive cam assembly.
ACCESSORIES QUICK CONNECT PORT SYSTEM
The above part numbers are packaged with 2 fittings per bag.
