Hale Q Series Muscle - Manual (Page 136)

 Packing and Mechanical Seal Maintenance
136 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
11. 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.)
12. Remove the old mechanical seal from the housing and impeller shaft. Two small
hooks aid in the removal. (See Figure 8-4: “Mechanical Seal Overview / Replace-
ment” on page 135.)
Note: Removing the mechanical seal renders it inoperative; it must be replaced.
13. 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.
6. Apply a generous coating of Pac-Ease Rubber Lubricant Emulsion (or equiva-
lent) to the mechanical seal bellows, the pump shaft and seal.
WARNING!
OIL AND GREASE WILL DAMAGE THE MECHANICAL SEAL FACE. DO NOT TOUCH
THE FACE OF THE MECHANICAL SEAL.
USE ONLY PAC-EASE RUBBER LUBRICANT EMULSION (OR EQUAL) ON THE RUBBER
MECHANICAL SEAL TO EASE INSTALLATION. USING AN OTHER LUBRICANT CAN
DAMAGE THE SEAL AND SEAT. MAKE SURE ALL SHAFT SURFACES AND THE INSIDE
OF THE SEALING BOOT ARE WELL LUBRICATED.
7. Without touching the carbon seal, slide the new mechanical seal bellows end
over the impeller shaft making sure the spring is oriented towards the impeller.
(See Figure 8-4: “Mechanical Seal Overview / Replacement” on page 135.)
8. Using a soft pusher tube (2” / 51 mm PVC pipe) and keeping fingers away from
carbon seal ring, push the mechanical seal assembly into the mechanical seal
housing. If binding occurs apply more lubricant to the impeller shaft and bellows.
Verify the stationary seat is firmly seated in the housing.