HALE AP, Technical Manual

Page: 92 / 177

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Inspect and clean all components. See paragraph 5.7.7, Cleaning And Inspection Guidelines, on
page 51.
If volute is removed and inspection indicates any of the following require replacement.
• Clearance rings require replacement see paragraph 5.8.7.2 (page 110), Pump Clearance
Ring R&R.
• Impeller requires replacement see paragraph 5.8.4.6 (page 110), Impeller R&R.
•
Mechanical seal requires replacement see paragraph 5.8.4.10 (page 93), RSD Mechanical
Seal R&R mechanical seal requires replacement see paragraph 5.8.4.9 (page 90), Mechani-
cal Seal R&R.
•
Pump shaft oil seal requires replacement see paragraph 5.8.4.13.1 (page 102), Pump Shaft
Oil Seal And O-ring.
Inducer Installation
A. Install inducer key in pump shaft keyway. (Use small amount of grease to
hold key in place.)
B. Carefully slide inducer over pump shaft, aligning inducer keyway with key.
C. Install inducer nut.
If pump is a RSD. 1.
a) If using a 2-1/2-in socket, torque limiting extension, and impact driver (set CW).
i. Hold inducer (or input shaft) by hand. (Use proper PPE.)
ii. Using 2-1/2-in n socket, torque limiting extension, and impact driver torque
castle nut.
b) If using a 2-1/2-in (or adjustable) wrench and strap wrench:
i. Hold impeller (or input shaft) with a strap wrench.
ii. Using 2-1/2-in torque wrench, torque castle nut to 210 ft-lb (285 Nm).
If pump is an MBP. 2.
a) If using a 1 3/4-in socket, torque limiting extension, and impact driver (set CW):
i. Hold inducer by hand. (Use proper PPE.)
ii. Using 1 3/4-in socket, torque limiting extension, and impact driver, torque cas-
tle nut.
b) If using a 1 3/4-in torque wrench and strap wrench:
i. Hold impeller with a strap wrench.
ii. Using 1 3/4-in torque wrench, torque castle nut to 110 ft-lb (149 Nm).