2
1
4
3
5
WARNING: DISCONNECT POWER TO PUMP AND OPEN VALVE TO
RELIEVE WATER PRESSURE PRIOR TO SERVICING PUMP
KEY
DESCRIPTION
1
2
3
4
5
*
7
8
QTY
1
1
1
2
1
1
1
1
1
1
Pressure switch
Pump head
Valve Kit
Slide clips
Motor
12 V
24 V
* Pumpgard
TM
Strainer
* Spray Nozzle US
* Spray Nozzle EC Adapter
* Hose Coil, 25’
18916-1060
18914-1060
18911-1030
30647-1000
18919-0187
18919-1080
46400-9500
30703-1000
30704-1000
31910-3015
31605-SERIES — PART NO.
EXPLODED VIEW
* Not shown in the above drawing
3. Reinstall the two wires onto the spade connectors, then install
the switch cover and screw.
Check Valve Assembly
4. Install the o-ring into the o-ring groove located on the
discharge side of the check valve chamber assembly.
5. Install the check valve chamber assembly into the
diaphragm, thus aligning the check valve chamber with the
diaphragm seal walls (push in to secure to the diaphragm).
Upper Housing Assembly
6. With the check valve chamber sub assembly installed on
the diaphragm, place the upper housing assembly onto the
pre-assembled lower housing sub assembly.
7. Align the cam with the motor "D" shaft and motor list, then
slide the cam onto the motor shaft (lube the motor shaft
with a small amount of light grease).
8. Check the discharge location (see arrow on front of port) for
correct port orientation (discharge right is the standard
position).
9. Install the six pump head screws through the upper hous-
ing, 3 screws will engage to lower housing. The other 3
screws will go through the lower housing into the front end
bell assembly aligning the three pins on the front end bell
with the 3 holes on the lower housing and tighten securely.
Motor Assembly
10. Install the pump head by following steps 6 through 9.
Pump Housing
(For numbers, refer to exploded view)
1. Disconnect power to the pump motor.
2. Remove the pressure switch cover and remove the two
wire leads from the switch spade connectors.
3. Remove the six screws from the upper housing.
4. Remove the upper housing from the check valve and
diaphragm/lower housing assemblies.
Check Valve Assembly
(To replace check valve only follow steps 1 through 6)
5. The check valve chamber and o-ring are located on the
diaphragm/lower housing assembly.
6. Remove the check valve chamber subassembly from the
diaphragm/lower housing subassembly (pull the valve
chamber from the diaphragm).
Motor Replacement
7. To replace the motor only, follow steps 1 and 2, then dis-
connect 3 screws, and pull the pump head out. Replace the
motor with washer and gasket.
REASSEMBLE
Pressure Switch Assembly
1. Install the switch diaphragm into upper housing.
2. Install the switch body over the diaphragm, align the screw
holes and install the two mounting screws.
DISASSEMBLE
