Slurry Pump
WH202A1B011EN_01D.DOC
JAN
04-W08
Care and maintenance
5/5
Table 9.5.5-2 Bearing clearances
FRAME SIZE
CLEARANCE
(
END
-
FLOAT
),
MM
FR250
0.075 to 0.125
FR300
0.075 to 0.125
FR400
0.100 to 0.150
FR500
0.100 to 0.150
FR600
0.150 to 0.200
FR750
0.180 to 0.250
m) Check the bearing clearance for the size of pump (See Table 9.5.5-2) using a
dial test indicator on the shaft end.
NOTE
:
IDEALLY
,
THE INDICATOR SHOULD BE FITTED TO A MAGNETIC BASE LOCATED ON THE
END
-
COVER
.
BY MOVING THE SHAFT BACKWARDS AND FORWARDS THE END
CLEARANCE MAY BE READ ON THE INDICATOR
(
SEE
F
IGURE
9.5.5-1).
n)
Remove or add shims as necessary to obtain the correct clearance.
NOTE
:
ROTATE THE SHAFT WHILE CHECKING THE CLEARANCE TO ENSURE CORRECT
SEATING OF THE BEARING ROLLERS
.
o)
Having set the clearance, remove dry-end cover (B2.2) and its shim set.
p)
Remove the dry-end bearing outer race and withdraw the shaft assembly.
q)
Pack the required quantity of grease into both bearing cages -see Lubrication
sub-section 9.4.
NOTE
:
WHEN HAND PACKING
,
FORCE GREASE THROUGH THE BEARING UNDER THE CAGE
FROM THE LARGE TO THE SMALL END TO ENSURE THOROUGH DISTRIBUTION
.
ALWAYS USE THE CORRECT QUANITY OF GREASE
.
OVER OR UNDER GREASING
CAN BE DETRIMENTAL TO THE LIFE OF THE BEARING
.
r)
Re-fit shaft (B11) into bearing cylinder housing (B14).
s)
Re-fit the dry-end bearing outer race into the housing.
t)
Fit secondary seal (B19.2) into end cover (B2.2).
u)
Fit the shims and refit end-cover (B2.2) to the housing, positioning the grease
hole such that it will be accessible when the bearing cylinder assembly is fitted
to bearing frame (P14).
v)
Tighten screws (B5) evenly and to the correct torque.
w)
With the bearing cylinder housing now supported horizontally, lubricate the
parts with grease and slide the shaft spacer (B6) with the shaft spacer seal
(B16) into position taking care not to damage the seal. Apply a light coating of
grease to the backs of the secondary seals (B19.1) & (B19.2) and push the
primary seals (B22.1) & (B22.2) into position making firm contact with the
secondary seals.
x)
Fit the flinger (B1).
