R E P A I R INSTRUCTIONS
Section I. HYPOCHLORINATOR ASSEMBLY
5-1. General
(d) Remove two screws (37); then remove
dial (39), spring (40), packing gland (41), packing
The hypochlorinator assembly is composed of the
(42), shaft (52), and stroke adjustment nut (53).
h y p o c h l o r i n a t o r (with pumping head), flow
(7) Remove and disassemble pump shaft
controller, and the balancing water valve.
assembly as follows:
5-2. Hypochlorinator
(a) Pull the pump shaft assembly out
a. Removal and Installation.
through the rear housing end of the hypo-
(1) Refer to paragraph 3-12 to remove or
chlorinator body, (82).
install the hypochlorinator assembly.
(b) Unscrew guides (65 and 74) from drive
(2) Refer to paragraph 3-17 to remove or
yoke (72) and remove pump shaft (76).
install the flow controller and balancing water valve
(c) Remove washer (70), by prying if
assemblies.
necessary; then remove valve diaphragm (71) from
b. Disassembly. Refer to figure 5-1 and perform
drive yoke (72).
the following:
(d) Push pump shaft valve seat (77) out of
(1) Refer to paragraph 3-13 and remove
yoke by inserting a small punch or rod through hole
hypochlorinator pumping head diaphragm (20).
in yoke behind valve seat and pressing.
(2) Refer to paragraph 3-14 and remove two
(e) Remove diaphragm mounted valve seat
solution valve bodies (13), poppet valves (15), two
(67) and stroke control pilot valve stem (68) by
valve seats (16), and four gaskets (14) from pump
unscrewing retainer (66) from guide (65). Remove
body (8).
bushing (69) from guide by means of an arbor press
(3) Remove four studs (21), elbow (24), and
if necessary.
nipple (25).
(f) Remove spring retainer (79) by engaging
(4) Remove and disassemble cam bracket
a flat piece of bar stock in the retainer slot and
assembly as follows:
unscrewing. Pull out leather packing (80), located
(a) Remove two screws (30) and washers
under retainer (79) in hypochlorinator body (82).
(31) and lift off cam bracket (32).
c. Reassembly. W h e n r e a s s e m b l i n g t h e
(b) Unscrew bearing (27) from cam bracket
hypochlorinator, refer to figure 5-1 and perform the
and remove cam shaft (28) and cam (29).
following:
(5) Remove and disassemble cam follower
(1) Reassemble the pump shaft by reversing
assembly as follows:
the procedure given in paragraph 5-2 b (7). Par-
(a) Remove two screws (54) from drive yoke
ticular attention should be given to the following
(72); then lift off cam follower assembly bracket
points:
(55).
(a) When pump shaft valve seat (77) is
(b) Remove
two
screws
(62)
and
installed in yoke (72), apply a drop or two of
disassemble retainer (63) and three leaf springs
shellac, rubber cement, or similar material to the
(64) from support (59).
rear face of the seat before pushing seat into yoke.
(c) Remove retainer ring (56) and push out
(b) When shaft guide (74) is screwed into
shaft (57); then separate bracket (55), support
yoke (72), be sure that pin (75) in guide fits into
(59), and lever (58). Remove roller shaft (60) and
small hole drilled in shaft (76).
roller (61) from support (59).
(c) Bushing (69) is a press fit in pilot valve
(6) Remove and disassemble rear housing
guide (65) and should be pushed in until flush with
assembly as follows:
the face of the valve guide. The fit between valve
(a) Remove rear housing assembly (45) by
stem (68) and bushing is not critical and is
satisfactory as long as the stem is sufficiently
removing four screws (43) and washers (44).
Release the drive yoke.
guided to seat squarely on valve seat (67).
(b) Remove nut (33) with a screwdriver and
(d) Secure valve seat (67) in valve guide
pull handle (34) straight off of shaft.
(65) with retainer (66). The raised lip on valve seat
(67) should face valve stem (68).
(c) Carefully remove setscrew (35) from
pointer (36); spring (40) will push pointer off of
(e) Valve diaphragm (71) is clamped
shaft.
