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Troubleshooting The Pump - Polaris 2879799 Owner's Manual

60 gallon lawn & garden utility sprayer w/ "boomless" boom

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Pump Model: 5275704
11
6
4

Troubleshooting the Pump:

Motor does not run:
°
Check for loose wiring connection(s).
°
Make sure the 'ON/OFF' switches in both the
lead wire assembly & on the pump motor are
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 switches are 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.
Page 6
7
5
10
9
Available Replacement Parts
8
Item
Part
No
Number
1
5075019
2
5157206
3
5157207
4
5168821
5
20408-000
6
5157203
7
5168824
8
5168826
9
5168828
10
5168832
11
5168833
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
12 Volt Connection
2.25
Fuse
527xxxx
On/Off Switch
3.19
Pump 'Model' Number
(Here on Label)
3
2
1
Qty
Description
1
Pkg. (4) Grommets
15 Amp 'Mini Blade' Fuse
1
1
On/Off Rocker Switch w/Cover
1
Upper Housing w/Pressure Switch
1
Pkg. (2) Clips (Port Fitting)
1
Pressure Switch Assembly
1
Check Valve w/O-Ring
1
Diaphragm Kit w/Pistons & (4) Screws
1
Cam/Bearing Kit, w/Set Screw
1
Port Kit Fitting, 1/2" MNPT
1
Port Kit Fitting, 1/2" Hose Barb
3.8 GPM @ Open Flow
7.4 Amps @ 40 PSI
Viton
Plug-In Port
12 Volts DC
Polypropylene
Santoprene
130
°
F max.
0101000000
Pump 'Serial' Number
(Here on Label)

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