Hale Q Series Muscle - Manual (Page 141)

141 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Packing and Mechanical Seal Maintenance
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.
9. Without touching the face of the seat, install the cup and seat into the mechanical
seal cover. Lubricate the cup and mechanical seal cover with
Pac-Ease Rubber
Lubricant Emulsion . Also apply a generous coating of the lubricant to the seal dia-
phragm.
10. Replace the seal rings in the mechanical seal cover. Apply a light coat of grease
to the rings being careful not to get grease on the impeller shaft.
11. Slide the mechanical seal cover over the impeller shaft making sure the seal
remains seated in the bore of the cover. Make sure there is no oil or grease on
the faces of the mechanical seal. (See Figure 8-3: “Qmax, Qmid, and Qtwo
Mechanical Seal Assembly Overview” on page 134.)
12. If binding occurs, apply additional PAC-EASE lubricant.
13. Screw a 7/16”-14 UNC stud into one of the holes in the mechanical seal housing
to aid in bolt hole alignment.
14. Insert the mechanical seal cover in the mechanical seal housing making sure to
line up your center punch marks.
15. Apply Loctite and install four 7/16-14” screws. Tighten the screws evenly in a
staggering (or criss-cross) fashion. Torque screws to 40 ft.-lbs. (54 N-m).
Note: If the screws are being replaced, they must be replaced with Grade 5, zinc plated
steel screws.
16. Slide the slinger onto the impeller shaft.