Answers for Lack of Vacuum in Tank, Overheating or Pump not Turning
For further information please see our Fruitland® Pump Manual or call 1-800-663-9003
- Tank not closed or leaking
- Collapsed Hose: Check wear and replace
- Stuck automatic floating shut-off: Put Pump on Pressure for a moment
- Pump running backward after stopping: Stuck or broken non-return valve (Back-up Valve)
- Lack of oil
- Wrong type of oil (See FAQ)
- Cooling fins of casing plugged with dirt
- Pump run for too long WITHOUT air passing inside the pump (See Manual)
- RPM too high
- Broken oil pump
- Clogged oil line
- Collapsed hose
- Clogged filter or muffler
- Foreign material may be lodged in pump
- Pump frozen up (winter conditions)
- Vane or Housing broken
- Pump overheated
NOTE: A slight metallic noise at high vacuum (above) 23-24Hg is normal. The expanded air is too weak to hold the non-return valve (back-up valve) completely open and consequently causes the closing disk to flutter.