1900 Series Horizontal Splitcase Pumps
Instruction and Repair Manual
30
11/12/18
11. Press grease seal (159C) into cartridge cap (B159). Position gasket (159E) and cartridge cap against bearing cartridge
and secure it in place with capscrews (159G). Be sure to align grease zerk holes and pipe plug hole on opposite sides.
12. Place slinger (B126) onto shaft. Place grease zerks (164) in bearing cartridges and pipe plugs (168A) in bearing caps. If
pump is oil lubricated, Model 1920 only, breather tubes are placed in each bearing cartridge. Oilers with nipples and
elbows are placed in cartridge caps.
13. Slide casing wearing rings (16) over impeller hub or optional wearing rings (17) and set rotating element into casing
half (2). Make certain that drill holes in bottom surface of casing wearing rings are located over pins (17A). The drill
hole in casing bushing (39) is over pin (39C) previously set in casing half (2).
NOTE:
Grease zerks or breather tubes should face up.
14. Install key (272) in motor end of shaft (4). Check
positioning and alignment of packing rings or seal
components, install swing bolts (19D) and split gland halves
(19) if pump has packing. Position clamps (19C), washers
(19B), and nuts (19A), securing loosely in place. Swing bolts
(19D) are set over pins (19F) on 3" 1913A, 3" 1923A, 3" 1843A or
smaller units. On larger units, swing bolts are held in place by
capscrews (2B) after casing half (3) is in position.
15. Place pins (158A) into bearing cartridges. Place bearing caps
(6) in position and secure with capscrews (6A).
16. Position new casing gaskets (157) on casing half (2). Set
casing half (3) in place. Secure it to casing half (2) with capscrews (2A). Pins (2C) are used as a means of locating the
position of casing halves.
17. On pumps larger than 3" 1913A, 3" 1923A, 3" 1843A thread in capscrews (2B) making sure they are placed through eye
of swing bolts (19D).
18. Place drain plugs (3B) and (3A) back in casing halves.
19. On Model 1940 pumps, set the motor on motor bracket (74) and fasten them together with capscrews (74A) and
nuts (77C). Slide flexible coupling half onto pump and motor shafts. Attach motor bracket to casing half (2) with
capscrews (74B). Connect flexible coupling halves.
20. If the casing half (2) was removed from base, see section on installation for proper methods of realigning pump
to motor and piping. On Model 1910 pumps see this section for realigning pump to flexible shafting. Attach flexible
shafting to pump. Ideal joint operating angle is 1° to 5°.
21. Replace any flushing or cooling lines that were removed. Connect electricity back to motor.
J. Impeller separator sleeve removed from shaft.