QED AutoPump AP-2, Operation Manual

Page: 98 / 111

QED Environmental Systems
AP-2 Manual
Page 90
Cleaning the Pump Cycle Counter
Sometimes the PCC does not count due to either the magnet shuttle or the spring hanging up
inside the magnet housing. The counter components can be cleaned by gently washing the
unit in warm water. A soft brush may be used to remove debris. To clean the inside, follow
these instructions: (See Figure 36)
Note:
As a precaution, mark and/or measure with a pencil, the set distance (See
Figure 36) so that it can be reset in the same position should movement
occur. Do not loosen the thumb screw
(item #3) since movement of the Display Assembly is unnecessary for
cleaning.
STEP 1 - Remove the inlet fitting (item #11) , not the thumb screw
(item #3) as noted above.
STEP 2 - Remove the magnet shuttle assembly (item #9) and the spring (item #8)
from inside the magnet housing (item #6) .
STEP 3 - Inspect the magnet shuttle assembly (item #9) , the spring (item #8) ,
and the inside of the magnet housing (item #6) for burrs which may
restrict the magnet shuttle assembly (item #9) movement.
STEP 4 - If burrs are present, remove the burrs and smooth the part. Replace
the PCC if necessary.
STEP 5 - Use a soft bottle brush and warm water to clean the inside of the magnet
housing.
Caution:
Be careful not to scratch the pieces.
STEP 6 - Let the parts dry.
STEP 7 - Reassemble the PCC.