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35
Assembly and Parts, Cont.
Drive End Cap Assembly
Figure 15:Drive End Cap Assembly
Current Part #
Description
Quantity
1
100238196
Screw, self-tapping
2
2
100238181
Drive Motor
1
3
100238190
1/4-inch Hex Nut
2
4
100238188
Drive Gear
1
5
100241941
Piston Slide Cam Cover
1
6
100241940
Piston Slide Cam
1
7
100037805
Drive End Cap
1
8
100342604
Piston Slide
1
9
100238197
Screw, self-tapping
2
10
100359580
Brine Valve Assembly with Salt Probe
1
11
100238193
Magnet Disk Assembly
1
12
100252699
O-Ring
1
13
100037867
O-Ring
1
14
100241865
O-Ring
1
15
100238189
Drive Piston Assembly (includes 100242051 Drain Gasket)
1
16
100242051
Drain Gasket
1
100242111
Entire Assembly (all of the above parts except line 1, 2, and salt
probe* from line 10)
*To include a salt probe, please order as a separate item using part # 100037735
Assembly and Parts, Cont.
Drive End Cap Assembly Cont.
100238181
Drive Motor
The Motor is held in place by two 1/2-inch self-tapping screws. The screws should be “snug.” The brass
pinion gear on the Motor should engage the plastic Drive Gear. The wires should be securely fastened to
the Control.
100238188
Drive Gear
The Drive Gear is assembled to the Slide Cam by means of a “keyed” opening which transfers the
“torque” generated by the Motor to the rest of the drive system. If the drive system becomes jammed, this
opening can become “rounded” causing the gear to turn, but not the Piston Slide Cam. If this occurs, clear
the jam and replace the Drive Gear and Piston Slide Cam.
100037655
Piston Slide Cam
Cover
The cover secures the Piston Slide Cam in place and acts as a bushing for the Cam Shaft.
100241940
Piston Slide Cam
This is the “heart” of the drive system. There is a threaded stainless steel shaft that runs through the
main drive axle. The Drive Gear is attached at the short end and the Magnet Disc at the other end. The
Slide Cam is assembled inside of the Piston Slide. This Cam Shaft should turn freely before the Motor is
assembled.
100037805
Drive End Cap
Seals the two openings on the Main Control Valve. The larger diameter opening is sealed with an O Ring
used as an axial or “face” seal. The O-Ring sits in a groove in the End Cap. This groove must be free of
defects such as pits or scratches and also free of debris. The smaller diameter seal is accomplished with
an O-Ring used as a radial seal. The O-Ring should be placed on the male boss on the End Cap. When
assembling the End Cap to the Main Control Valve, care should be taken to make sure the small O-Ring
is aligned with the opening in the Main Control Valve and that the large O-Ring stays in the groove in the
End Cap. If misaligned, the O-Rings can become pinched and leak.
100240958
Piston Slide
The Slide should move freely inside the End Cap Housing.
100359580
Brine Valve Assembly
with Salt Probe
Attaches to the Drive End Cap with two 3/4-inch self-tapping screws and has one O-Ring seal. The O
Ring is used as a axial or face seal. The O-Ring sits in a groove in the Brine Valve Housing. The groove
and the face seal must be free of defects such as pits and scratches or debris.
100238189
Drive Piston
Assembly
The Drive Piston attaches to the Piston Slide by placing the “slot” of the Piston onto the matching flat of
the Slide. To remove Piston, rotate Piston 90° counterclockwise. To replace Piston, rotate 90° clockwise
until you hear an audible “click.” See reference drawings below.
Dimple
Align Flats
Position Piston Assembly (100238189) With
Dimple Oriented Vertically
Slide Piston Assembly Onto Piston
Slide. Push Toward End Cap to Stop.
Rotate The Piston Assembly 90
Degrees Clockwise Until You Hear
An Audible Click As It Snaps Into
Place.
