Hale Q Series Muscle - Manual (Page 146)

 Packing and Mechanical Seal Maintenance
146 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
seated squarely in the rear bearing housing. If binding occurs apply more lubri-
cant.
9. Orient the carbon seal ring towards the seal and slide the bellows and spring over
the impeller shaft. Use the pusher tube to make sure the assembly is pushed all
the way in. If binding occurs apply more lubricant to the impeller shaft and bel-
lows.
10. Insert impeller key in the impeller shaft and install the impeller on the shaft. Also
insert the inducer. See heading “Qflo / Qflo-Plus / Qpak Mechanical Seal Assem-
bly Overview” on page 144.
11. Install impeller nut - tighten and torque to 135 ft.-lbs. (183 N-m). Lock the impeller
nut in place using a cotter pin.
12. Apply a light coating of grease to the seal ring groove and install a new seal ring
on the rear bearing housing.
13. Install a new gasket on the rear bearing housing, holding it in place with a light
coating of grease.
14. Thread two 7/16”-14 UNC studs in the pump body to help guide the rear bearing
housing onto the pump body.
15. Using proper lifting device lift gearbox and impeller assembly into place. Use
studs to guide the rear bearing housing into the pump body.
16. Insert the 7/16”–14 UNC cap screws into the rear bearing housing. Tighten and
torque screws to 40 ft.-lbs. (58 N-m).
17. Reconnect drive shafts, electrical, and air lines to gearbox.
18. Fill the gearbox with oil. See Section 4: Preventive Maintenance, heading
“Replace Gearbox Oil” on page 80.
19. Operate the pump for about 15 minutes, and check the seal for leakage.