Hale Q Series Muscle - Manual (Page 124)

 Repair and Corrective Maintenance
124 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Assembly - QTWO Two-Stage Pump
Also see Figure 7-7: “Qmax / Qtwo Assembly Overview” on page 120.
1. Clean the impeller shaft, the keyway, and the seal housing and face. Also see
heading “Cleaning and Inspection Guidelines” on page 106. See WARNING!
note on page 122.
2. Check the waterway in the seal housing for restrictions - clean as needed.
3. Install a new gasket on the seal housing face.
4. Install the key into the keyway.
CAUTION!
IF THE IMPELLER OR CLEARANCE RINGS ARE DROPPED, DAMAGED OR WARPED,
THEY MUST BE REPLACED.
5. Install the inner clearance ring over the impeller shaft checking for proper orienta-
tion.
6. With an acetylene torch EVENLY heat the “eye” and hub of each impeller for
approximately two minutes.
7. Slide the individual impellers onto the shaft making sure they are in the correct
orientation. Make sure the center support bearing is installed between impellers.
Note: The vanes turn in a clockwise direction when viewed from the front of the impeller
assembly. If the impeller does not fully slide onto the shaft allow the assembly to cool to
room temperature before re-heating
and continue installing the impeller .
8. Allow the components to cool to room temperature before continuing.
9. Install the outer retaining ring and the outer clearance ring ensuring proper orien-
tation.
10. Slide the AutoLube assembly over pump shaft. Also see heading “QMID/QMAX/
QTWO AutoLube ® Service” on page 116.
11. Install the impeller shaft assembly to the pump.
Inspection – Clearance Rings
(See Figure 7-8: “Clearance Ring and Impeller ID / OD Measurement.”)