QED AutoPump Ultra 4.0, Руководство по эксплуатации

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Chapter 7: Troubleshooting & Repairs
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Chapter 7: Troubleshooting & Repairs
Problems may occur and usually can be easily resolved by following these instructions. If, after careful reading and
service, you cannot resolve the problem, please contact the QED Environmental Systems (QED) Service Department at
(800) 537-1767.
Caution: Wear goggles, gloves, and coveralls when servicing this system. After troubleshooting is completed
and before assembling the pump, slowly move the float through its range to ensure that the lever will trip even if
the pump fills and empties slowly .
Troubleshooting
1. Air Supply
• If the air pressure is too low, or if the flow is severely restricted, the pump will not cycle. The minimum air pressure
requirement for pump operation is 0.5 psi(.03 Bar) per foot(30cm) of vertical static head.
• If the air pressure exceeds the design limitations of the pump, the pump may fail to cycle, or the exhaust
may have locked up and caused air to enter the fluid discharge.
2. Fluid Level
• The fluid level must be above the fluid inlet on a Top-Loading pump. On a Bottom-Loading pump, the fluid must be
no lower than 9 inches below the head of the pump
3. Air Exhaust Restricted
• The exhaust line must not be kinked, plugged, or too small in diameter.
• The air exhaust outlet must be above the fluid level
• If the air exhausts in the well, the well must be vented to the atmosphere or a functioning vapor recovery line.
Possible Causes Symptoms
Detailed Instructions Follow
This Chart
Pump Not Cycling
Pump Not Cycling,
Volume is Reduced or
There is No Discharge Air in Fluid or Discharge
1. Air Supply X X
2. Fluid Level X
3. Air Exhaust Restricted X X
4. Fluid Inlet Clogged X
5. Debris, Scale or Very
Viscous Fluid
X X X
6. Lever Pivot Wear X X
7. Debris in Air Inlet Valve
X
8. Fluid Check Valve X
9. Valve Timing X