Figure 66: Stuffing box cover-to-casing gasket
18. Lubricate shaft keyway and insert impeller key in shaft and shaft sleeve. Lubricate shaft and slide
impeller on shaft as far as possible. Pull impeller on shaft the remainder of distance with impeller
screw. Be sure impeller screw O-ring is in place and in good condition. Prevent shaft from rotating
by using a spanner or strap wrench.
19. Place O-ring in outer groove of suction sideplate. Install the sideplate-to-casing gasket. Tighten the
four sideplate-to-casing studs in tapped holes in sideplate. Place suction sideplate in casing, mak-
ing sure not to damage the sideplate O-ring. Liberal amounts of O-ring lube may be used to assist
in sliding in place. Install and tighten four nuts on sideplateto-casing studs.
20. Tighten casing hold down bolts.
21. Connect suction and discharge flanges. Care should be taken to prevent excessive pump flange
loading.
Figure 67: O-ring and suction sideplate-to-casing gasket
22. Slide the completely assembled "back-pull-out" unit into the casing. Tighten the frame adapterto-
casing bolts evenly to assure that gap between adapter and casing is even. Check with a feeler
gauge at 4 points 90° apart around the adapter.
WARNING:
Lifting and handling heavy equipment or components poses a crush hazard. Use caution dur-
ing lifting and handling and wear appropriate Personal Protective Equipment (PPE, such as
steel-toed shoes, gloves, etc.) at all times. Seek assistance if necessary.
Follow torque specifications in the table below for frame adaptor to casing bolts.
6.7 Reassemble the Pump
66
3175 Installation, Operation and Maintenance Instructions
