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Pump Model: 5277981
5
3
6
7
5
Troubleshooting the Pump:
Motor does not run:
°
Check for loose wiring connection(s).
°
Make sure the 'ON/OFF' switch in the lead wire assembly
is in the 'ON' position. "I" is the 'ON' position, and 'O' is the 'OFF' position.
°
Check for defective pressure switch. Make sure you are connected to a good
12 volt power source. Make sure your on/off switch is in the 'on' position.
Remove the cap to the pressure switch. Pull both red wires off of their terminals,
and touch the two ends together. If your pump runs when you do this,
your pressure switch will need to be replaced.
°
Check the fuse.
°
Check for low voltage at the power supply.
Pump does not prime:
°
Check for air leaks in supply line.
°
Check for debris in the check valve assembly.
°
Check for defective check valve.
°
Check for clogged strainer/filter.
°
Check for cracks in the pump housing.
°
Check for empty product supply.
Pulsating flow (surging):
°
Check for defective pressure switch.
°
Check for leaks in the discharge line.
°
Check for restriction in the discharge line.
°
Check for debris in nozzle orifice.
°
Discharge hose may be too long.
°
Check for clogged strainer.
Motor continues to run after discharge is shut off:
°
Check for empty product supply.
°
Check for open bypass valve. (if equipped)
°
Check for low voltage.
°
Check for leak in discharge line.
°
Check for defective or dirty check valve.
°
Check for defective pressure switch.
12 Volt Connection
10
9
8
4
2
Pump 'Model' Number
Item
11
No
1
2
3
4
5
6
7
8
9
10
11
Pump Specifications
Flow Rate:
Current:
Check Valve:
Port Type:
Motor Voltage:
Wetted Parts Housing:
Diaphragm:
Liquid Temperature:
GPM = Gallons Per Minute
PSI = Pounds per Square Inch
DC = Direct Current
2.25
527xxxx
Fuse
3.19
(Here on Label)
Available Replacement Parts
Part
Description
Qty
Number
5157205
1
7.5 Amp 'Mini Blade' Fuse
5168832
1
Port Kit Fitting, 1/2" MNPT
5168833
1
Port Kit Fitting, 1/2" Hose Barb
5168836
1
Port Kit Fitting, 3/8" Hose Barb
5168837
1
Upper Housing Assembly
5168839
1
Plunger Kit
5157202
1
Pressure Switch Assembly
20408-000
1
Pkg. (2) Clips (Port Fitting)
5168820
1
Check Valve Kit (w/O-Ring)
5168838
1
Diaphragm/Piston/Cam/Bearing Kit
5095202
1
Mounting Feet (Pkg of 4)
2.1 GPM @ Open Flow
4.5 Amps @ 30 PSI
Viton
Plug-In Port
12 Volts DC
Polypropylene
Santoprene
130 F max.
°
0101000000
Pump 'Serial' Number
(Here on Label)
Page 3
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