Hale SMR - Manual (Page 95)

Stainless Max Series Pumps 6-17
Maintenance and Repair
5. Remove the twelve nuts and hardware to dismantle the volute
from the rear cover plate. Pull the volute body from the assembly
being careful not to damage the impeller or scratch the sealing
surfaces of the volute.
Note: A dead blow hammer may be needed. Tap, in a crisscross
pattern, around the volute until it is separated from the cover plate.
Installation Notes
To install, follow the preceding steps in the reverse order, paying
attention to the following:
❑
Review preceding section “Before You Begin...,” beginning on
page 6-1.
❑
Pay attention to section “Cleaning and Inspection Guidelines,”
beginning on page 6-6 to ensure a thorough installation.
❑
Replace all O-ring seals in the suction and rear cover plates.
It is recommended to use only Hale authorized replacement
parts for optimum safety of the equipment and its operators.
❑
If you are changing from standard to reverse rotation, flip the
volute 180° horizontally, having the cast ARROW pointing in
the counterclockwise direction, as viewed from the suction
inlet.
PUMP HEAD
To service the oil seal between the pump and gearbox or pedestal
mount or to service the gearbox or pedestal mount, you must dismantle
the pump head from either unit.
Removing the Pump Head
1. First, review preceding section “Before You Begin...,” beginning
on page 6-1.
2. As described in the previous sections, remove the -
❑
front clearance ring (on page 6-9)
❑
impeller (on page 6-10)
❑
rear wear ring (on page 6-12)
❑
mechanical seal (on page 6-13)
3. Remove the six nuts and hardware securing the pump body to
the bearing housing portion of the gearbox or pedestal.