Read through the safety information and
overhaul instructions carefully before repair-
ing your Waterous CPK-5 Series Fire Pump.
Table of Contents
Safety Information ................................................................................... 2
Introduction .............................................................................................. 3
General Description ................................................................................. 3
General Overhaul Information ................................................................ 3
Tools and Equipment .............................................................................. 3
Preliminary Testing ................................................................................. 3
Cleaning ................................................................................................... 3
Pump Bodies and Impellers ....................................................................... 3
Bearings, Gaskets, Seals and O-rings ....................................................... 4
Impeller Shafts ........................................................................................... 4
Installing Ball Bearings .............................................................................. 4
Installing Body Gaskets ............................................................................. 4
Disassembly
........................................................................................ 4 - 5
Reassembly
.............................................................................................. 6
Testing
...................................................................................................... 7
Hydrostatic Testing .................................................................................... 7
Operational Testing ................................................................................... 7
NOTE: Instructions subject to change without notice
Waterous Company, 125 Hardman Avenue South, South St. Paul, Minnesota 55075 USA (651) 450-5000
www.waterousco.com
F-1031, Section 5015 (Issued: 05/17)
CPK-5 Series Fire Pumps
Overhaul Instructions
