Goulds Pumps AF (Axial Flow) (42"/1200mm/54/60"/66") LM/LMR Bearings - IOM" - Manual (Page 47)

AF (42-66) IOM 47
9. Disassemble bearing halves by removing bolts and
knocking out taper pins. Carefully lift top half. The
shaft (122) with bearings can be lifted from bottom half
of housing
10. Remove thrust end locknut (136) and lockwasher
(382).
a.
For top suction pumps (Fig.20), the thrust
bearing (112C), thrust bearing sleeve (196) and thrust
bearing spacer (237) can be pulled from shaft (122).
Press or pull radial bearing (112) from shaft by
applying force on inner race bearing.
b.
For end suction pumps (Fig.21), press the entire
thrust bearing stack off by pushing against stationary
race of thrust bearing (112C).
11. Loosen set screws and pull oil wheel (248) off
shaft.
12. Push inboard radial bearing (168C) off shaft
toward coupling end by applying force on bearing inner
race with a press.
POWER END RE-ASSEMBLY
1. Be sure shaft is clean and free from all burrs.
2. Heat inboard radial bearing (168C) in a 200 deg. F
oil bath or by induction heater. Slide bearing on shaft
(122), butting against shaft shoulder. Position oil
wheel (248) on shaft (122) and secure with set screws.
3. Heat thrust end bearings (112) & (112C) and
sleeve (if used), in 200 deg. F oil bath. If thrust
bearing rotating race mounts on spacer (443), install
race on collar and heat collar with bearing mounted in
oil bath.
a) For top suction pumps (Fig. 20), slide bearing
(112), spacer (237), and sleeve into position, tight
against each other and against shaft shoulder.
After sleeve has cooled, install thrust bearing
(112C).
4. When the thrust bearing is in the outboard position
the stationary race will usually fit over the lock nut and
washer. This saves the trouble of trying to keep the
race in position because it can be set aside until
retainer (109) is installed.
a) For end suction pumps (Fig.21), slide spacer
(443) with mounted thrust bearing (112C),
including stationary race, into position against shaft
shoulder. If a spacer drive key is used, be sure it
is installed. Install bearing (112) against collar.
5. Secure bearings with lockwasher (382) and
locknut (136). Retighten locknut while components are
cooling to keep them tight together.
6. Install (6) thrust bearings springs (9890) in thrust
bearing retainer (109) or bearing housing (134) halves.
Use thick grease in each hole to help hold springs until
assembly.
7. Lower shaft (122) into bottom half of bearing
housing (134). Be careful not to damage bearings
or machined fits.
8. If springs (9890) are located in the housing, keep
the shaft about 3/8" outboard of normal position so
springs are not compressed.
9. Lower top half of housing into position, align with
taper pins, and secure together with bolts.
10. Install thrust bearing retainer. Do not damage lip
seal.
11. Slide thrust bearing retainer (109) and gasket
(360R) onto shaft to contact bearing housing
(134). Do not damage lip seal (332). Fasten
retainer to bearing housing with cap screws.