1
ASSEMBLY
PUMPS WITH MOTORS
1. No assembly required. Simply unpack the pump and motor
and examine for any signs of shipping damage. If damage is
detected, save the packaging and notify the carrier immediately.
2. To install the pump into the system, follow the installation
instructions provided.
PUMPS WITHOUT MOTORS
1. Unpack the pump and any supplied accessories and examine
for damage. If damage is detected, save the packaging and
notify the carrier immediately.
2. Lay the motor on its side. Install the slinger ring (item 2)
onto the motor shaft. After coating the motor shaft threads
with a thread lube, thread the pump shaft (item 8) onto the
motor shaft about 3 full turns. Install the four set screws
(item 6) in the motor end of the pump shaft, but do not
tighten.
3. Gently place the motor on the fan cover so the pump shaft
points straight up. Install the mounting plate (item 1) with
the four locating tabs (these are welded on one side of the
plate) facing the motor and locating on the raised motor face.
Slide column assembly (item 7) over the pump shaft and at-
tach to the motor with the four mounting bolts, flat washers
and lock washers (items 5,3, 4) going through the column
flange and the mounting plate.
4. Lay the pump on its side and remove the fan cover from the
motor.
AK / AV 4 & 5 SERIES
Metallic Vertical Centrifugal Pumps
Installation and Maintenance Instructions
8. On AK/AV 4 models, spin the fan blade and visually check
to make sure all four impeller fins are not rubbing and are
straight in relationship to the back head section of the column
assembly. Gently adjust the fins if necessary.
9. Install the impeller housing (item 16) (without the o-ring) and
hold in place with your hand. Spin the fan blade while listen-
ing and feeling for impeller rubbing. Pump shaft adjustment
can be made if necessary.
10. Replace the motor fan cover and gently place the pump on the
motor fan cover.
11. Clean the o-ring sealing area on the back head section of the
column assembly and the impeller housing. Lubricate the
o-ring (item 10) with a compatible lubricant.
12. Install the impeller housing and v-clamp (item 11). Impeller
housings with the discharge attached need to be inserted into
the hole in the mounting plate and visually aligned with the
column assembly. Snug the nut on the v-clamp.
13. The alignment for the discharge can be adjusted by tapping
the impeller housing discharge left or right with a rubber mal-
let. Visually check that the discharge is parallel to the column
assembly and it goes through the mounting plate straight.
14. Once the discharge alignment is correct the v-clamp nut can be
tightened.
15. Insert a 1/2” socket into the suction and spin the impeller to
check clearances.
16. Install the pump into the system following the installation
instructions provided.
INSTALLATION
MOUNTING:
1. Base plate must be securely fastened so that there is no vibration
when the pump is running.
2. Align the piping with the pump ports. Do not connect the piping
until it is aligned properly and supported independently. Do not
pull the piping in line with the pump or support the piping with
the pump.
3. A valve should be installed in the discharge line. During initial
operation of the pump, determine the power consumed. If
necessary, throttle back the flow until the pump draws the
rated horsepower of the motor.
5. Holding the motor fan, adjust the pump shaft by threading
clockwise or counterclockwise until the pump shaft shoulder
is set correctly (see figure 1).
6. Tighten the setscrews in the pump shaft through the access
hole at the motor end of the column assembly.
7. After applying a thread lube, thread the impeller (item 12) on
until it bottoms out on the pump shaft shoulder. Install the
5/16 bolt, washer and lock washer (items 15, 13, 14) in the
impeller end of the pump shaft.
Figure 1
(6 pages)
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