Installing Pump Casing - QED AutoPump AP-3 Operation Manual

AP-3 Manual
STEP 6 - The white plastic square Control Rod is the next component to be cleaned.
The control rod is the item that fits through the smaller hole in the float
and is adjacent to the SS discharge pipe in the assembled pump. Again,
use the Scotch Brite pad or a razor or Exacto knife (not sandpaper).
STEP 7 - The final component to be cleaned is the outer AutoPump casing. Please
note you may either have a stainless steel or FRP fiberglass pump casing.
The fastest and most effective way to clean out the inside surface of the
pump casing is to use a three-stone honing tool. The technique is to
move the hone in-and-out a half dozen times or so through each end of
the casing. The time for the casing cleaning should take no longer than
5 minutes.
The AutoPump is now ready for re-assembly by following the steps above in reverse
order.

Installing Pump Casing

STEP 1 - Inspect the O-rings to ensure they are capable of sealing (no discernible
cuts or abrasions).
STEP 2 - Lubricate both inside ends of the casing to a depth of 3/4" with a thin
layer of food-grade grease. Ensure that the film reaches the edges of
the casing.
STEP 3 - Place the bottom check valve (Bottom Loading Pump) or bottom plug
(Top Loading Pump) upright on a clean level surface.
STEP 4 - Pull the casing down over the check valve or plug.
Warning:
The pump casing has beveled ends that allow it to slide over the O-rings
easily. Keep fingers, hands and other body parts away from these edges as
they approach the heads. These edges can pinch when the pump casing is
slid over the lower and upper heads.
Revision 3 - April, 2009
Chapter 6: Maintenance
Page 57