Table of Contents
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Read through the safety information and
overhaul instructions carefully before repair-
ing your Waterous CPK-5 Series Fire Pump.
NOTE: Instructions subject to change without notice
Waterous Company, 125 Hardman Avenue South, South St. Paul, Minnesota 55075 USA (651) 450-5000
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
www.waterousco.com
CPK-5 Series Fire Pumps
Overhaul Instructions
Table of Contents
F-1031, Section 5015 (Issued: 05/17)
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Summary of Contents for Waterous CPK-5 Series
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Page 1: Table Of Contents
Operational Testing ................... 7 ing your Waterous CPK-5 Series Fire Pump. NOTE: Instructions subject to change without notice F-1031, Section 5015 (Issued: 05/17) Waterous Company, 125 Hardman Avenue South, South St. Paul, Minnesota 55075 USA (651) 450-5000 www.waterousco.com... -
Page 2: Safety Information
Safety Information Please read through the safety information and operating instructions carefully before using your Waterous Fire Pump. WARNING WARNING Death or serious personal injury might occur if proper operating procedures Scalding Water Hazard. May result in serious burns. are not followed. The pump operator, as well as individuals connecting sup-... -
Page 3: Introduction
Introduction This section contains overhaul instructions for Waterous CPK-5 Series Also refer to the Service Parts List (SPL documents), available at centrifugal fire pumps. waterousco.com. to aid in further part identification and repair parts order- ing. General Description The CP-5 series pumps are designed to provide ultra high pressure and driven by a K-Series Transmission allowing for pump and roll operation. -
Page 4: Bearings, Gaskets, Seals And O-Rings
Installing Ball Bearings Parts of this nature are frequently damaged during removal or disassem- Most Waterous pumps are designed so that ball bearings fit tightly on their bly. In addition, they sometimes deteriorate or lose their effectiveness be- shafts and have relatively loose fits in the bearing housings. When mount- cause of age or misuse. - Page 5 Disassembly (con’t) ► To disassemble the pump, perform the following: 10. Remove ten (10) hex head screws (B10) and lockwashers (B14) that attach the pump head (B2) to the volute body (B1). 1. Remove two (2) hex head screws (B12) and lock washers (B14) 11.
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Page 6: Reassembly
Reassembly ► To reassemble the pump, perform the following: 11. Push the second stage impeller until it seats against the shoulder of the shaft (S3). An installation tool can be used to prevent break- 1. Apply light coating of grease to the O-ring of the mechanical primary age of mechanical seal. -
Page 7: Testing
Testing Before a pump can be returned to service, it is advisable to give the pump a hydrostatic and operational tests to check it for leaks and to make sure the pump operates properly. Operational Testing Hydrostatic Testing 1. Operate the pump at its maximum intended service pressure. Do 1.
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