MP Pumps CHEMFLO 5, 6, 7, 8 PUMPAKS INSTRUCTION User Manual
Instruction bulletin
![background image](/manuals/338775/1/background.png)
INSTRUCTION BULLETIN
MP CHEMFLO CENTRIFUGAL PUMPAK
MODEL: CHEMFLO 5, 6, 7, 8
READ THIS BULLETIN CAREFULLY BEFORE INSTALLING OR OPERATING THE
PUMPAK
It is important that this instruction bulletin be
read over carefully to fully familiarize yourself
with the PUMPAK assembly arrangement. The
instructions contained in this bulletin pertain to
the installation and maintenance of the PUMPAK
assembly only.
Check the PUMPAK over carefully to make
certain that no parts are missing or broken in
shipment. CAUTION: Do not disturb the
assembly shim at the suction opening of the
pump housing until AFTER the PUMPAK has
been completely assembled to the driver.
Packed separately with each unit are instructions
bulletin, parts list, and literature describing the
PUMPAK.
CONTRUCTION:
The PUMPAK consists of a stainless steel
housing, seal housing motor adaptor, shaft
sleeve, shaft seal, impeller nut, drive clamp, o-
ring, and stainless steel fasteners.
The impeller is screwed onto the shaft sleeve.
The impeller nut secures the impeller on the
sleeve. The shaft sleeve is machined to precisely
fit the shaft on your driver, No provision is made
for an internal drive key and none is required.
The drive clamp assembly takes the place of
internal drive keys, securely locks the shaft
sleeve to the driver shaft, and serves additionally
as a liquid slinger to protect you motor.
The mechanical seal is the self-adjusting,
greaseless type, being lubricated by the liquid in
the pump. It requires no maintenance and
provides long and trouble-free operation.
Because the seal is lubricated by the liquid in the
pump,
THE PUMP SHOULD NEVER BE
OPERATED WITHOUT LIQUID IN THE
HOUSING.
In freezing weather, the pump should always be
drained of liquid unless sufficient anti-freeze
solution is in the system.
MOUNTING PUMPAK TO DRIVER:
ROTATION:
Check rotation of driver to be sure in coincides
with the required rotation of the PUMPAK
assembly. When viewed from the driver end
PUMPAK
rotation
is
Right
Hand
(CLOCKWISE).
Loosen the drive clamp fasteners but do not
remove.
NOTE: If driver shaft is a keyed shaft,
remove the key before installing the MP
PUMPAK. The drive clamp assembly on the MP
PUMPAK is all that is required to drive the
pump. Slide PUMPAK assembly onto the driver
shaft, aligning capscrew holes in adaptor with the
tapped holes in the driver mounting face, until
adaptor contacts the mounting face.
Install fasteners and tighten to secure PUMPAK
assembly to driver, First center, then tighten
drive clamp assembly to lock shaft sleeve onto
driver shaft.
After all fasteners are tight, including drive
clamp assembly, remove the strip stock shim
from the suction eye of the pump housing. This
shim was inserted to establish clearance between
the face of the impeller and pump housing.
Rotate driver slowly by hand to make certain the
impeller does not rub or hit the housing or
adaptor.
If the impeller is rubbing, this means the shim
was displaced during shipment or handling.
1