|
Pump hard to prime.
|
Leak in suction hoses.
|
Check plumbing for leaks. Tighten and seal where needed.
|
|
Pump will not prime.
|
Strainer plugged.
|
Clean strainer.
|
|
|
Pump set too low.
|
See PRIMING AND INITIAL START UP OF PUMP in Liquid Fertilizer-Piston Pump section.
|
|
|
Pump valves fouled.
|
See your John Deere dealer.
|
|
|
Packings worn.
|
See your John Deere dealer.
|
|
Pump metering low.
|
Leak in suction hoses.
|
Check plumbing for leaks. Tighten and seal where needed.
|
|
|
Open special fitting check valve.
|
See your John Deere dealer.
|
|
|
Strainer plugged.
|
Clean strainer.
|
|
|
Pump set too low.
|
Set pump according to rate chart.
|
|
|
Pump valves fouled.
|
See your John Deere dealer.
|
|
|
Pump drive set wrong.
|
Set drive according to rate chart.
|
|
|
Broken valve spring.
|
See your John Deere dealer.
|
|
Pump metering high.
|
Pump set too high.
|
Select pump number according to rate chart or adjust upward due to low drive wheel slippage.
|
|
|
Pump drive set wrong.
|
Set drive according to rate chart.
|
|
|
Valve stuck open.
|
See your John Deere dealer.
|
|
|
Broken valve spring.
|
See your John Deere dealer.
|
|
|
Contaminates under valve.
|
See your John Deere dealer.
|
|
Fertilizer leaks past pump when pump is stopped.
|
Valve stuck open.
|
See your John Deere dealer.
|
|
|
Broken valve spring.
|
See your John Deere dealer.
|