Slurry Pump
WH18AA11D00EN_01G.DOC
JAN
04-W08
Care and maintenance
4/4
6.
Closing the pump
a)
If the Front Pull-Out Method was used:
i/ Lift and push the case over impeller (W3), onto back-liner (W4) and against
the vertical plate. Ensure that case fixings (B) enter their respective holes
around the flange joint.
ii/ Locate and secure the case to the vertical plate by fitting the upper and
lower casing clamp fixings (C) in the case slots provided.
b)
If the Back Pull-Out Method was used:
i/ Lift and offer the complete bearing frame and rotating assembly onto the
base/case-support and push the impeller and back liner into the case with
approximately a 30mm gap between the bearing frame flange and the
vertical plate.
ii/ Insert bearing frame screws (P11) and washers (P12). Do not tighten at this
stage.
c)
Set the impeller front clearance –see section 9.5.1.
d)
Check the impeller for freedom of rotation.
NOTE
:
AFTER FINAL ADJUSTMENT
,
THE BACK
-
LINER WILL NORMALLY PROTRUDE
SLIGHTLY INTO THE CASE
–
EXCEPT FOR HM
50
AND HM
75
WHEN FITTED WITH
INDUCED FLOW IMPELLERS WHICH USE A FLAT BACK
-
LINER
.
e)
Tighten all fixings (B & C) to the torque values given in sub-section 11.1.
f)
If the Front Pull-Out Method was used:
Check inlet and outlet gaskets and re-connect the respective pipework.
CAUTION
REFER TO SECTION
6.5
BEFORE RENEWING PIPE FLANGES
.
g)
If the Back Pull-Out Method was used:
i/ Tighten the bearing frame screws.
ii/ If fitted, reset the mechanical seal for operation.
iii/ If fitted, reconnect the flush water tapping.
iv/ Fit the drive belts or connect the drive coupling, ensuring that they are in
correct alignment.
v/ Fit and secure the drive safety guard and the gland guard in position.
vi/ Check that all fixings are secure.
vii/ Remove warning plates and safety locks from power switches and restore
power supply to the motor.
