SERVICE MANUAL | 15 & 25 Frame Plunger Pumps2 (763) 780-5440 | techsupport@catpumps.com | www.catpumps.com
Safety Symbols 2
General Safety Information 3
Servicing the Seals 6
Discharge Manifold Removal 6
Inlet Manifold Removal 6
Seal Disassembly 6
Seal Reassembly 6
Servicing the Plungers 7
Plunger Disassembly 7
Plunger Reassembly 7
Servicing the Valves 8
Valves Disassembly 8
Valves Reassembly 8
Servicing the Crankcase 9
Reference Information 10
Torque Chart 10
Technical Bulletin Reference Chart 10
Torque Sequences 10
Preventive Maintenance Schedule 11
Diagnosis and Maintenance 12
Table of Contents
IMPORTANT SAFETY INSTRUCTIONS
It is the responsibility of the user to read and understand all
instructions, important safeguards and safety precautions before
operating or servicing any pump. Failure to do so may result in
property damage, personal injury or death.
GENERAL SAFETY INFORMATION AND SYMBOLS
Pay special attention to the following signal words, safety alert
symbols and statements:
Safety Symbols
Indicates a potential personal injury hazard.
Obey all safety messages that follow this
symbol to avoid possible injury or death.
Indicates a hazardous situation which, if not
avoided, could result in minor or moderate
injury or property damage.
Indicates a hazardous situation which, if not
avoided, could result in property damage.
Indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Indicates a hazardous situation which, if not
avoided, could result in death or serious injury.