Waterous CM Series Overhaul Instructions page 31

Safety
Disassembling the Impeller Shaft with Packing
Introduction
7
10
Disassembly
9
8
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Assembly
Use the illustrations and instructions to disassemble
the impeller shaft.
7 Press the impeller toward the center of the
shaft to remove the lock ring.
8 Use an arbor press to remove the impeller.
9 Remove the key.
10 Remove the hardware and gland halves.