7
3. Insert shaft with bearing, impeller end fi rst, into the
top of the frame (19) being careful not to damage the
seal
(47).
4. Place bearing housing (33) in a vice with the fl ange
resting on vice jaws. Apply light oil to interior of
housing then press bearing (18) into the bearing
housing making sure that the bearing is fully seated
in the bearing housing.
CAUTION: Apply force to
the outer ring of the bearing only.
Place the
assembly over the end of the pump shaft and press
into position so that the inner race of the bearing is
against the shaft shoulder.
CAUTION: Apply force to
the inner ring of the bearing only.
5. Place lock washer (69) over the bearing and thread
the bearing lock nut (22) onto the shaft and tighten
securely. Bend tabs of lock washer into slots in the
bearing lock nut.
6. If frame (19) was removed from the support plate
(23), mount the frame on the base plate replacing cap
screw and nuts (221) and (258)
7. Slide
defl ector (40) onto the shaft.
N - ASSEMBLY OF LIQUID END
1. Place throttle housing (99) with throttle bushing over
impeller end of shaft. Align bolt holes and position
against column pipe (101).
2. Position gasket (241) on throttle housing (99) then
place casing (1) against the fl ange of the throttle
housing aligning the holes and with the discharge
outlet in the proper position. Replace cap screws (212).
3. Insert impeller key (32) into shaft keyway and place
impeller (2) on shaft with keyway over impeller key.
Place wooden block over impeller vanes and tap
lightly on the wood block to seat the impeller on the
shaft. Back up coupling end of shaft to prevent
bearing
damage.
4. Replace impeller washer (270) onto the shaft then the
castellated nut (24). Tighten the nut and place new
cotter pin (269) through nut and shaft.
CAUTION:
Do Not use impeller nut to draw the impeller
onto the shaft. The nut is a locking device only.
Recommended torque for tightening the impeller nut
is as follows:
1/2” - 45 Ft. lbs.
5/8” - 90 Ft. lbs.
3/4” - 170 Ft. lbs.
5. Place gasket (73) on suction cover (9). Position cover
against the casing (1) and replace and tighten cap
screws
(215).
O - CHAIR BRACKET MOUNTING
(See page 8)
The foot mounted horizontal type motor and fl exible shaft
coupling are shipped unmounted and must be mounted
on the pump prior to installation of the pump.
Mount the pump half coupling on the pump shaft (6) and
the motor half coupling on the motor shaft according to
manufacturer’s recommendations.
Place the pump in a horizontal position on a bench or
suitable support. Place motor, shaft toward the pump, on
the chair bracket with motor feet positioned on the motor
mounting screws (2).
Insert motor anchor cap screws (5) thru holes in motor
feet and into the motor mounting screws. Tighten
suffi ciently to hold motor in position.
Adjust motor mounting screws until motor shaft and
coupling is aligned with the pump shaft, both angular and
paralleled alignment.
Angular alignment check is made by inserting taper
gauge or feelers between coupling faces at 90° intervals
around the coupling. The coupling faces should be the
same distance apart. Adjust motor mounting screws to
achieve alignment.
Paralleled alignment check is made by placing a straight
edge across both coupling rims at 90° intervals around
the coupling. Straight edge should rest evenly on coupling
halves at each point. Correction can be made by adjusting
motor mounting screws. When properly aligned, tighten
motor anchor cap screws (5) and lock nuts (3).
Place the assemble pump in a vertical position on the
tank or pit and connect discharge pipe to pump discharge.
NOTE: Pipe and fi ttings must be properly supported
so their weight does not rest on pump.
Rechech
angular and paralleled alignment and correct as
necessary. Turn pump shaft by hand several times to be
sure that it rotates freely.
Connect power leads to motor according to motor wiring
diagram, jog starter, testing for proper pump rotation;
normally clockwise (righ hand) when looking down on top
of motor.
Place pump in operation. If there is vibration in the unit,
rechech alignment at the shaft coupling and refer to
“Pump Adjustment”.
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