Sethco MET-PRO P90 Manual

800 Emlen Way, Telford, PA 18969
Tel: 800-645-0500 • 215-799-2577 • Fax: 215-799-0920
Website: www.sethco.com • e-mail: sales@sethco.com
West Coast Office: 230 N. Crescent Way, Unit I, Anaheim, CA 928014 • Tel: 714-991-0270 • Fax: 714-991-8107
DISASSEMBLY:
1. Separate motor from pump by
unscrewing collar (1) from motor.
Gently pull pump from motor.
2. Remove coupling (6) from pump by
simply lifting off.
3. Remove impeller (12)
With coupling removed, secure
coupling nut with a 3/8" socket wrench.
Place screwdriver into slot in impelle
Now turn pump over and place screw
driver into screwdriver slot in impeller
(12). Unthread impeller (12) by turn
ing it counter clockwise. Hold the
3/8" socket to prevent turning of the
coupling nut (7).
4. Remove bearing cartridge (13) and
shaft (9) assembly. Take coupling (6)
and flip it upside down and place it
over coupling nut (7) and bearing
housing (3). The four tabs on the
coupling (6) should fit into the corre-
sponding knockout in the bearing
housing (3). Take a 5/8" socket and
place it over the cou-pling (6) and
unthread counter clockwise. Once
bearing cartridge (13) is completely
P90 DRUM PUMP
unthreaded, pull assembly out of tube
(10) being careful not to bend shaft
(9). If vapor seal (5) stays in tube
and not on shaft assembly, it is worn
and should be replaced.
Flip Coupling
Upside Down
Secure nut
with 3/8"
Socket
Wrench
Turn clockwise when
re-assembling.
(Torque bearing cartridge
to 20 ft./ lbs.)
r
Bearing Cartridge
5. Using a small pair of pliers, grip the
shaft (9) just below the bearing
cartridge (13). Using a 3/8" wrench,
unthread the coupling nut (7) counter
clockwise. Once coupling nut (7)
is unthreaded, simply slide the bearing
cartridge (13) off the shaft (9). Vapor
seal (5) can now slide upward off the
shaft (9). Seal (5) should only be
removed/installed upward. Check seal
(5) for wear and replace if necessary.
6. Remove o-ring (8) from tube (10).
PD-381-90-1
MODEL P90
DRUM
PUMPS
O&M/Parts List
October 1, 2006
Check for wear and replace if
necessary.
7. To remove bearing diffuser (11) from
tube (10), flip the tube (10) upside
down so that you can see into
the bottom of the pump. Using your
coupling (6) again, place the coupling
(6) with the four tabs facing into the
tube (10) into the bottom of the
pump. Using your 5/8" socket,
unthread the bearing diffuser (11) by
turning counter clockwise. A slight click
will be felt as diffusers disengage from
lower head. Once unthreaded, pull
bearing diffuser (11) out of tube (10).
Bearing
Diffuser
8. Before dismantling bearing cartridge
(13) inspect ball bearings as follows.
Hold both sides of ball bearings and
rotate entire assembly slowly by hand.
Rotation should be absolutely smooth
with no roughness. If continued oper-
ation is questionable, replace bearing
cup assembly (4).
9. To remove bearing cup (4) from bear
ing cartridge (13), press the bearing
cup (4) out of bearing cartridge (13)
using a small arbor press. Bearing cup
assemblies (4) that have been used,
may press out by hand. This is nor-
mal.
NOTE: These ball bearings are lubricat-
ed with special grease.
original factory quality parts only.
strongly recommend that you replace
bearing cup (4) and seal (5) together.
(See Parts List and Drawing on next page)
Replace with
We