Carver Pump RSA - Reassembly of Pump with Standard Sleeve Bearing

RS – Multi-Stage, I-280
Centrifugal Pump 280 – 16.03.EN
35
E. REASSEMBLY OF PUMP WITH STANDARD
SLEEVE BEARING. Read this entire section before
reassembling the pump. The instructions that follow are
an aid for properly trained personnel to assemble your
Carver Pump. Refer to Figures 13 and 15 to locate the
pump parts by item number and parts list. If a specific
sectional assembly drawing exists for a particular job
then that drawing should be referred to for assembly.
Refer to Table 14 for recommended torque values.
Assemble the pump in accordance with accepted rules
of engineering practice. Coat individual components with
a suitable lubricant before assembling. Assembly of unit
should be performed on a clean, flat surface. During
reassembly, install parts as applicable. Assembly begins
at the suction (inboard end) of the pump.
CAUTION
During reassembly, install new O-rings, ball
bearings, oil seals/bearing isolators,
mechanical seals and gaskets if disturbed from
position. O-rings, ball bearings, oil
seals/bearing isolators, mechanical seals and
gaskets may have been damaged during
disassembly.
NOTE
All parts should be thoroughly cleaned or
replaced with new ones if necessary. All
sealing faces should be perfectly clean, but do
not scratch or alter surface finish on seal faces.
Parts marked with * are options that vary by
pumping unit and bearing frame size.
1. Confirm that the rotor TIR was completed per
Section XI, Paragraph D, step 10 before
proceeding with assembly. Secure suction
casing (9) to work area.
2. Install sleeve key (32X) into keyway in shaft (6).
Install sleeve O-ring (89X).
NOTE
DO NOT install mechanical seal (90*), only the
seal collar (68*).
3. Slide sleeve (14A) onto end of shaft, lining up
keyway of sleeve with sleeve key. Install seal
collar (68*) to the scribe mark, refer to Table 6.
Secure seal collar to sleeve (14A) with sleeve
collar setscrews (665). Install snap ring (176) on
the shaft.
4. Slide bearing spacer (78) onto end of shaft.
Install slinger (40) on bearing spacer.
CAUTION
Handle inboard bearing frame bearing isolator
(169) with care. Mishandling could damage
faces of inboard bearing frame bearing isolator.
5. Install inboard bearing frame bearing isolator
(169) in inboard bearing frame (99).
CAUTION
While installing back-to-back ball bearings, DO
NOT unnecessarily hit ball bearings. If damage
to ball bearings occurs, replace damaged ball
bearings with new ball bearings.
After 20,000 Hours of service, replace the
ball bearings.
6. Install new ball bearings (16) back-to-back in
bearing frame (99); back to back meaning
lettering on the outer race facing each other.
7. Slide bearing frame (99) and ball bearings (16)
on the coupling end of the shaft (6) up to the
bearing spacer (78).
8. The first bearing jam nut (22) is to have 3 ft-lbs
torque while holding the coupling end of the
shaft. The second bearing jam nut is to be
tightened to 30 ft-lbs while holding the first jam
nut. Install first jam nut (22) and temporarily
torque to 3 ft-lbs. Add second jam nut and
torque to 30 ft-lbs.
9. Temporarily secure inboard bearing cap (37) to
bearing frame (99) with washers (850), and
bolts (601).
10. Install bearing frame assembly through inboard
side of suction casing (9). Confirm proper
suction casing orientation and that wear ring
(7A) is in suction casing.
11. Secure bearing frame (99) to suction casing (9)
by tightening bolts (600).
12. Slide spacer sleeve (14D) onto outboard end of
shaft (6), next to sleeve (14A).
13. Install impeller key (32A) into keyway on shaft
(6). Confirm that wear ring (7X) is in interstage
casing (111).