User guide

5. Loosen the screw on the ba ery case cover, remove cover from the base
plate, and remove ba eries.
6. Detach both the ba ery and motor wire
harnesses from the wire connectors on
the control board.
7. Li the control board off the base plate.
8. Use pliers to gently rock the motor back and forth
while pulling the motor from the pump housing.
Replacing the Stack
1. Remove the bu on plug from the side of the pump housing. Using fi ngers,
insert the motor into the pump housing of the new stack (Cat. No. P20182A).
Gently press the motor into the pump housing while observing the
alignment of the bearing/eccentric to the slot in the yoke (see below). If the
bearing/eccentric is off -center, use a fi nger or pen to gently move the yoke to
either side until the eccentric is centered in the slot.
2. Once aligned properly, gently press the motor into the pump housing until it
will not move any further.
5
5
6
Control
Board
Motor
Wire
Harness
Battery
Wire
Harness
Motor
Correct: Eccentric
centered in yoke.
8
Incorrect: Eccentric off-
center and binding yoke.