Idiomas disponibles
Idiomas disponibles
impeller, gasket and end cover as outlined above. Tighten end cover
screws. Tighten cam screw.
SHAFT SEAL REPLACEMENT, 11860-SERIES: Refer to major repair
instructions.
FIELD COIL REPLACEMENT: Remove drive belts from pulley. Remove
center bolt and washer from pulley (it may be necessary to remove
end cover to hold impeller from turning, while removing center pulley
bolt). Tap pulley with soft mallet to remove from shaft taper. Remove
3 bolts and washers holding field coil to adaptor (11870) or body
(11860). Remove and replace field coil, tightening the 3 bolts securely.
With drive key in place in shaft, replace pulley assembly. Secure to
shaft, replace pulley assembly. Secure to shaft with center bolt and
washer (again, it may be necessary to hold the impeller from turning
to tighten center bolt). Replace drive belts. Do not over tighten belts.
A deflection of 1/2" midway between pulleys is generally considered
normal.
MAJOR REPAIR: Remove pump from installation for major repair.
Disassembly: Remove end cover, gasket,impeller, cam and wearplate
as outlined in shaft seal replacement, 11870-Series. Remove clutch as
outlined in field coil replacement. Model 11870- Series: Use a punch
to drive roll pins (key 17) in toward shaft approximately 3/8" (10mm).
Remove clutch adaptor from body. Punch roll pin out of adaptor.
Model 11860-Series does not have adaptor, clutch is secured directly
to body. Remove bearing to body retaining ring. Support bearing
end of body on arbor press platten. Press on impeller end of shaft to
remove shaft and bearing assembly from body. Use screwdriver to
pry inner bearing seal from body. Take care not to scratch or damage
body bore.
11860-SERIES: Remove seal seat assembly from shaft. Support impel-
ler end of body on arbor press platten and, using suitable tube, press
seal out of seal bore towards impeller end.
11870-SERIES: Remove slinger from drain area. Carbon portion of
the seal assembly will be freed from shaft when shaft is removed from
body. Press seal seat assembly from removed bore end towards impel-
ler bore. Remove bearing to shaft retaining ring. Support bearing and
press on clutch drive end of shaft to remove shaft from bearing.
ASSEMBLY: Support inner race of bearing on arbor press platten. Oil
shaft, insert drive end of shaft into bearing and press shaft through
bearing until it bottoms firmly against shoulder.Install shaft to bearing
until it bottoms firmly against shoulder. Install shaft to bearing retain-
ing ring in groove of shaft. Support impeller bore end of pump on
arbor press platten.
Lubricate bearing seal with grease and press into bearing seal bore,
flush with bearing bore shoulder, with lip facing away from bearing
bore. For 11870-Series only: Insert slinger in drain slot, to be picked
up by shaft during shaft/bearing assembly. Insert splined end of shaft
through bearing seal (and slinger on Model 11870-Series).
Press on outer bearing race to assemble shaft/bearing assembly into
body, bottoming bearing firmly against bearing bore shoulder. Install
body to bearing retaining ring in groove in body with flat side against
bearing. For 11870-Series only: Install clutch adaptor in bearing bore.
If re-using adaptor previously disassembled from pump, line up dowel
pin holes during assembly of adaptor to body. If installing new adaptor
(which does not have pre-drilled dowel pin holes), insert into bearing
EXPLODED VIEW
VUE ÉCLATÉE / EXPLODIERTE ANSICHT / VISTA ESPLOSA
UITGEBREIDE WEERGAVE / SPRÄNGVY / VISTA EXPLOTADA
bore until it bottoms and use dowel pin holes in body to pilot drill dow-
el pin holes through adaptor in two places, 180° apart. Clean any brass
chips from bearing area. Press roll pins into body to secure adaptor.
Attach field coil to adaptor (11870-Series) or body (11860-Series) with
three round head bolts. Turn body over and support on field coil.
CARBON CERAMIC SHAFT SEAL ASSEMBLY
Rubber Boot
WAVE
WASHER
SEAL
Rubber Boot
COIL
SPRING
SEAL
11860-SERIES: Dip seal seat assembly, consisting of ceramic seal
seat and rubber washer, in water and push over shaft, with shiny side
of ceramic facing impeller bore, until bottoms firmly against shaft
shoulder. Press on outside edge of seal case with carbon seal face
towards ceramic seat to install seal assembly in seal bore. Press flush
with bottom of impeller bore.
11870-SERIES: Assemble rubber boot over ceramic seal seat so that
shiny surface of seal seat is outwards. Dip assembly in water and insert
into seal bore. Press firmly but carefully on seal seat until it bottoms
against shoulder of seal bore. Check to see that the seal seat assem-
bly remains in position and does not "pop" back out. A slight twisting
motion while pressing will seat it firmly in position.In this pump, either
a wave washer seal or coil spring carbon seal may be used. The wave
washer is used only if the carbon portion of the seal does not have a
coil spring attached.
Inspect shaft and seal seat bore to be sure sealing surfaces are free of
nicks or scratches. Clean shaft surface behind splines to ensure proper
O-ring seal on shaft. Apply light film of grease on shaft surface behind
spline area. Slide carbon ring assembly, with carbon facing ceramic,
over the shaft and firmly up against the ceramic seat. If carbon portion
of seal does not have an integral coil type tensioning spring, slide
wave washer over the shaft and against the rubber boot on metal case
containing O-ring and carbon. Install wearplate in bottom of impel-
ler bore, locating slot in outside edge of wearplate over dowel pin
in body. Apply a small amount of sealant to surface of cam and cam
screw threads and install cam in impeller bore. Edge of cam should be
flush with flange face of body. With a rotary motion in the direction the
pump will be turning, push the impeller into the impeller bore until it
is firmly bottomed. Turn body over to install clutch pulley assembly.
Press key into shaft. Position clutch/pulley assembly on shaft aligning
key with slot in pulley hub. Secure with bolt and washer. To tighten
bolt securely, it may be necessary to hold the impeller to prevent the
shaft from turning. Turn pump assembly over. Dip gasket in water,
position on pump flange face, install end cover and secure with end
cover screws.
Model 11870-Series only
Model 11870-Series only
3
Brass Case
Rubber
Boot
Ceramic
Carbon
Seal
Ring
O-Ring
SS Case
Carbon
Ceramic
Ring
Seal
Wave
Washer
Spring
Rubber
Boot
