Hale Q Series Muscle - Manual (Page 135)

135 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Packing and Mechanical Seal Maintenance
Figure 8-4: Mechanical Seal Overview / Replacement
4. Install two 1/2”-13 x 2-1/2” cap screws into the 1/2”-13 UNC threaded holes on
the rear bearing housing to use as jacking screws.
5. 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 back bearing and gear before
attempting to remove the rear bearing housing.
6. Evenly turn the jacking screws clockwise to separate the rear bearing housing
away from the pump body.
7. Remove the gear and gear key from the impeller shaft.
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.
8. Remove the rear bearing housing being careful not to damage the oil seal.
9. Remove the slinger from the impeller shaft.
10. Match-mark the mechanical seal cover and mechanical seal housing. Remove four
7/16”-14 screws securing the mechanical seal cover.