Flowserve PHL - Manual (Page 24)

PHL USER INSTRUCTIONS ENGLISH 00079593 – 10/10
Page 24 of 31
6.7.13 Removing the bearings from the shaft
This procedure describes removing the radial roller
bearing and the axial ball bearing from the pump shaft.

Bend open the lips of the lock washer (2911) and
remove the bearing nut (2910) from the pump
shaft.

Remove the lock washer.

Remove the axial ball bearing from the pump shaft
by using the right tools.

Remove the lock washer (6545) from the pump
shaft, which is placed for locking the inner
raceway of the radial roller bearing (3012).

Remove the inner ring of the radial roller bearing
from the pump shaft.
6.8 Examination of parts
Used parts must be inspected before
assembly to ensure the pump will subsequently run
properly.
In particular, fault diagnosis is essential to enhance
pump and plant reliability.
6.8.1 Casing, seal plate, diffuser and impeller
a) Inspect for excessive wear, pitting, corrosion,
erosion or damage and any sealing surface
irregularities.
b) Replace as necessary.
6.8.2 Pump shaft and stub sleeve (if fitted)
Although the pump is of the “dry shaft design” Replace
if grooved, pitted or worn.
6.8.3 Gaskets and O-rings
After dismantling, discard and replace.
6.8.4 Pump bearings
It is recommended that bearings are not re-used after
any removal from the shaft.
6.9 Assembly
To assemble the pump consult the sectional drawings,
see section 8, Parts list and drawings.
Ensure threads, gasket and O-ring mating faces are
clean. Clean all parts carefully before assembly and
replace any which are worn or damaged. Apply thread
sealant to non-face sealing pipe thread fittings.
6.9.1
Fitting the bearings on the shaft
This procedure describes the assembly of the radial
roller bearing and the axial ball bearing on the pump
shaft.

Clean the mounting faces of the pump shaft
(2110), the radial roller bearing (3012) and the
axial ball bearing (3013).

Push the inner ring of the radial roller bearing on
the pump shaft.

Put the spring washer (6545) on the pump shaft
for the radial roller bearing.

Push the axial ball bearing on the pump shaft.

Push the lock washer (2911) for the axial ball
bearing and install the bearing nut (2910) on
the pump shaft.

Lock the bearing nut by bending the lips of the
lock washer into the openings of the bearing
nut.
6.9.2
Fitting the bearings in the bearing
housing
This procedure describes the assembly of the axial
ball bearing and the radial roller bearing into the
bearing housing.

Clean the mounting faces of the bearing
housing (3200), the radial roller bearing (3012)
and the axial ball bearing (3013).

Install the outer ring of the radial roller bearing
into the bearing housing.

Push the pump shaft (2110), completely
mounted with the inner ring of the radial roller
bearing and the axial ball bearing into the
bearing housing.
6.9.3
Fitting the bearing covers
This procedure describes the assembly of the
bearing covers.

Clean the mounting faces of the bearing
housing (3200) and the bearing covers (3260.1
and 3260.2)

Put some locktite 5926 or 510 or equal on the
faces between cover and housing

Install the bearing covers on the bearing
housing.

Install the bolts (6577.2 and 6577.3).
6.9.4
Fitting the throwers
This procedure describes the fitting of the throwers
on the pump shaft.

Clean the bore of the throwers (2540.1/2) and
the pump shaft (2110).

Push the throwers on the pump shaft.

Fit the set screws.
6.9.5
Fitting the throat bush
This procedure describes the fitting of the throat
bush into the casing cover.
 Clean the mounting surfaces of the throat bush
[4132] and the casing cover (1221).
 Fit the throat bush in the casing cover on the
top side.
The throat bush should be fixed in relation to the
casing cover using 3 set screws [6570.3].
 Drill 3 holes at 120 
intervals in the partition
between throat bush and casing cover. Drill the
holes to a depth such that the set screws