Reassemble
Reassemble
Reassemble the
the
the Standard
Standard
Standard Diaphragms
Diaphragms
Diaphragms
NOTICE
NOTICE
NOTICE
After reassembly, allow the thread locker to cure
for 12 hours, or per manufacturer’s instructions,
prior to operating the pump. Damage to the pump
will occur if the diaphragm shaft bolt loosens.
TIP:
TIP:
TIP: If you are also repairing or servicing the center
section, follow
Center Section Repair, page 19
,
before replacing diaphragms.
1.
Lubricate and install the shaft u-cups (106) so
the lips face
out
out
out
of the housing (101).
2.
Assemble plate (9) onto diaphragm (10), with
screw (14). Rounded side of plate (9) should
face diaphragm. Make sure the side marked AIR
SIDE faces the center housing.
NOTE:
NOTE:
NOTE: Thread locker must be applied to screw
(14) as shown for all diaphragm assemblies.
Apply a high-strength thread locker to attach
the screw to the diaphragm plate, if needed.
Apply a medium-strength thread locker to the
shaft side of the screw.
3.
Screw assembled diaphragm assembly into shaft
(24) and hand tighten.
4.
Grease the length of the diaphragm shaft (24),
and slide it through the housing (101).
5.
Assemble the other diaphragm assembly to the
shaft as explained in step 2.
6.
Using a 5/8 in. wrench hold the wrench flats of
one diaphragm assembly and torque the other
diaphragm to 81-94 N•m (60-70 ft-lb).
NOTE:
NOTE:
NOTE: Apply waterproof, sanitary lubricant to the
clamp (21) and clamping surface of the cover (4,
15) to ease assembly.
7.
Align the fluid covers (4, 15) and the center
housing. Secure the covers with the clamps (21)
and hand tighten.
NOTE:
NOTE:
NOTE: Apply a food grade anti-seize lubricant on
the clamp threads to aid assembly.
NOTE:
NOTE:
NOTE: Ball pump fluid covers are
interchangeable.
NOTE:
NOTE:
NOTE: Flapper fluid covers are not
interchangeable and their orientation is
critical on horizontal pumps. Horizontal pump
fluid covers must be positioned so that the
flappers hang down from the hinge pin when
placed in the fluid cover. Install the flapper valves
(8) with the text side facing the seat.
8.
Reassemble the ball check valves and manifolds
as explained in
812.0065
15
