Hale Q Series Muscle - Manual (Page 140)

 Packing and Mechanical Seal Maintenance
140 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
10. Install a 1/2”-13 x 2-1/2” screw into one of the holes on the rear bearing housing
into the pump body to keep the mechanical seal housing from rotating while
removing the rear bearing housing.
Note: It may be necessary to use pry bars to loosen the roller bearing before attempting to
remove the rear bearing housing.
11. Evenly turn the jacking screws clockwise to separate the rear bearing housing
away from the pump body.
IMPORTANT!
DO NOT ALLOW THE WEIGHT OF THE REAR BEARING HOUSING TO REST ON THE
OIL SEAL AS DAMAGE MAY RESULT RENDERING THE SEAL INOPERATIVE.
12. Remove the rear bearing housing being careful not to damage the oil seal.
13. Remove the slinger from the impeller shaft.
14. Match-mark the mechanical seal cover and mechanical seal housing. Remove four
7/16”-14 screws securing the mechanical seal cover.
15. If necessary, use pry bars in the slots provided to loosen the mechanical seal
cover from the mechanical seal housing. (See Figure 8-3: “Qmax, Qmid, and
Qtwo Mechanical Seal Assembly Overview” on page 134.)
16. Remove the old mechanical seal from the housing and impeller shaft. Two small
hooks aid in the removal. (See Figure 8-6: “Mechanical Seal Overview / Replace-
ment” on page 139.)
Note: Removing the mechanical seal renders it inoperative; it must be replaced.
17. Inspect bearings and other internal parts for excessive wear, pitting or damage.
Repair and/or replace accordingly.
Installing the Seal
1. See CAUTION! warning on page 133.
2. Clean the bore of the pump head using alcohol swabs supplied with the Hale
repair kit (p/n: 296-5210-50-0). Also clean solid running faces with alcohol wipes.
3. Ensure that the pump body, mechanical seal housing, impeller bores and all mat-
ing surfaces of the mechanical seal assembly are absolutely clean throughout the
entire installation process.
4. Make sure the impeller shaft is smooth and free of burrs at the gear key slot and
bearing journals.
5. Clean the pump shaft with alcohol swabs.