2
when a straight edge rests evenly on both halves of the coupling
in all positions. The shafts will be parallel when the gap between
the two halves of the coupling is even at all positions around the
coupling.
(e)
ROTATION:
Ensure that shaft rotation will be in the same
direction as the arrow on the casing (clockwise, looking from
shaft end).
(f)
SPEED:
Pressure and fl ow data is available for transmission
speeds ranging from 1750 to 3450 RPM (2250 to 3450 RPM
FACT-5 only). Operation at speeds outside this range is not
recommended.
(c)
FOUNDATION:
A rigid mounting system must be provided
for the pumps to ensure that correct alignment of the drive
coupling can be maintained. It is recommended that a mounting
frame be constructed from heavy steel channel and both the
pump transmission and the power source be bolted to this. If
possible, the frame itself should be securely anchored to a
rigid concrete foundation.
(d)
ALIGNMENT:
Proper alignment is essential for proper pump
performance and satisfactory life of transmission drive
components. For direct couplings, ensure that shafts are both
parallel and concentric. The units will be concentrically aligned
OPERATION - PRIMING THE PUMP
WARNING:
DO NOT RUN THE PUMP BEFORE PRIMING IT, SINCE THE SEAL AND IMPELLER COULD BE PERMANENTLY DAMAGED.
a)
PRIMING:
These pumps are not self-priming. For best results,
use a foot valve and priming fi tting as shown in Fig. 1. Slowly
add water through the priming fi tting until both the suction line
and casing are full.
b)
STARTUP:
NEVER operate the pump dry as this may damage
the seal. If the pump does not deliver water after two minutes,
repeat the priming operation.
c)
DRAINING:
Should the pump be subject to freezing tempera-
tures, it will be necessary to drain the pump completely. This is
MAINTENANCE
a)
LUBRICATION:
The pump itself does not require lubrication.
On FACT-5 and FACT-6 series pumps, the transmission uses
sealed bearings which have been greased for life at the factory
and are not intended to be re-lubricated. On the FACT-8, a
grease fi tting has been provided on the housing to lubricate the
bearings. Use a proper, high-grade ball bearing grease, and DO
NOT over lubricate.
b)
DISASSEMBLY:
(Refer to Fig. 2 and 3)
-
Disconnect power source from transmission and remove suction
and discharge piping prior to any disassembly.
-
Remove four 3/8" nuts securing casing (1) to transmission hous-
ing (2) and carefully remove casing and gasket (6).
-
Remove impeller (4) from shaft. Impeller is threaded onto shaft
in normal fashion.
NOTE:
On FACT-8, remove bolt (9) fi rst.
-
Remove mechanical seal (7) from shaft.
-
On FACT-5 and FACT-6 remove snap ring (5) from back of
transmission housing and press out shaft/bearing unit (3).
-
On FACT-8, remove seal plate (10), sleeve (11), and fl inger (8).
Pry shaft seal (13) out of housing. Remove snap ring (16) and
press shaft/bearing assembly out of housing.
NOTE:
Premature seal failure may be a result of pumping corrosive
chemicals. A seal for chemical handling is available (see Repair
Parts List).
(c)
REASSEMBLY
(Refer to Fig. 2 and 3 and Repair Parts List)
:
-
Carefully clean all parts. Replace parts showing signs of exces-
sive wear. Apply fi lm of light oil to bearings, shaft, and inside of
transmission housing.
-
Apply a light, soapy lubricant onto the rubber only seal seat
and press into housing (FACT-5, FACT-6 or seal plate FACT-8).
Make sure that the seat is seated properly.
-
On FACT-5 and FACT-6, install fl inger (8) onto threaded end of
shaft/bearing unit (3), press unit into housing, and install snap
ring (5).
-
On FACT-8, press outer bearing (14) into housing (2). Press
inner bearing (15) onto threaded end of shaft. Press shaft and
bearing assembly into housing. Care must be taken to avoid
preloading bearings. Install snap ring (16) and seal (l3) into
housing. Slide fl inger (8) onto shaft. Before installing sleeve
(11), apply liquid gasket to area of shaft that will be covered by
sleeve. Install seal plate (10) to transmission.
-
On FACT-8, press outer bearing (14) into housing (2). Press
inner bearing (15) onto threaded end of shaft. Press shaft and
bearing assembly into housing. Care must be taken to avoid
preloading bearings. Install snap ring (16) and seal (l3) into
housing. Slide fl inger (8) onto shaft. Before installing sleeve
(11), apply liquid gasket to area of shaft that will be covered by
sleeve. Install seal plate (10) to transmission.
-
Install rotating mechanical seal onto shaft with the shiny side of
the washer facing towards white ceramic seat. Install impeller
securely (4) on FACT-8. Fasten with 1/4" NC x 1" bolt (9).
-
Install rotating mechanical seal onto shaft with the shiny side of
the washer facing towards white ceramic seat. Install impeller
securely (4) on FACT-8. Fasten with 1/4" NC x 1" bolt (9).
-
Install gasket (6) and casing (1) to assembly using (4) 3/8" NC
nuts and lockwashers.
-
Ensure shaft turns freely and reconnect piping.
done by removing the drain plug on the bottom of the front face
of the pump casing. After all the water has been drained, operat-
ing the pump for a few seconds will ensure that the impeller is
devoid of water. Ensure that the lines are also free of water.
d)
STORAGE OF PUMP:
Drain liquid from pump to prevent frost
damage. It is recommended that a good rust inhibitor be put
inside the casing to prevent corrosion. When restoring use of
the pump, replace all plugs and ensure that all connections are
tightly sealed. After a complete check, make the initial prime
according to directions under the heading PRIMING.
