EBARA 3U, 3UB - Manual (Page 12)

EBARA End Suction Centrifugal 3U / 3UB
Operating, Installation, and Maintenance
EBARA Fluid Handling
www.pumpsebara.com 12
(t) 803 327-5005 • (f) 803 327-5097 rev. 02/09
Assembling the Pump – Models 20HP - 30HP (see page 8 for sectional view)
1. Apply a coat of anti-seize lubricant to the inside of the coupling (005).
2. Insure that key is installed in motor shaft keyway, slide coupling (005) onto shaft. ( Tip: To ease the installation
of the coupling tighten the set screw on the side of the coupling. Tightening this screw will cause the coupling
to open slightly allowing for easier installation. After the coupling is in place be sure to loosen the set screw
to release the pressure and allow the coupling to close down on the motor shaft.)
3. Secure the coupling to the motor shaft by tightening the socket head bolts in the side of the coupling. Torque
to 11ft. lbs.
4. Fasten the adapter ring (003A) to the motor using a cross tightening pattern.
5. Fasten the motor bracket (003) to the adapter ring.
6. Apply a thin coat of non-petroleum based lubricant (i.e. dish soap) to the stationary seal seat in the casing
cover (004), using finger pressure only press the stationary seal into the seal seat. Wipe the seal face clean
with alcohol and a soft cloth.
7. Position the o-ring ( 026 ) around the casing cover.
8. Using hand pressure or a rubber mallet, press fit the casing cover ( 004 ) onto the motor bracket (003).
9. Apply a thin coat of non-petroleum based lubricant (i.e. dish soap) to the inside of the rubber boot on the
rotating seal. Slide the seal onto the coupling pushing it gently until it contacts the stationary seal that was
installed in step 6. Place the spring and spring retainer over the coupling and onto the rotating seal.
10. Place the stainless steel lip seal (234) onto the spring retainer insuring that the raised surface of the lip seal
seats into the spring retainer.
11. Install the impeller shaft key (032) into the coupling shaft.
12. Slide impeller (007) over the key and shaft.
13. Tighten the impeller nut (034) to secure the impeller in place. Tighten to 11 ft.lbs
14. Install Casing (001). Take care to align the bolt holes. Cross tighten the bolts to 8 ft. lbs.
15. With a socket wrench, rotate impeller to check for proper casing alignment. If rubbing against casing occurs
loosen casing bolts and retighten taking care to cross-tighten and use equal torque.
16. Install motor support (042) or casing support (042A) as required.