
SERVICE MANUAL | 3570 Series Plunger Pumps
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(763) 780-5440 | [email protected] | www.catpumps.com
Safety Symbols
2
General Safety Information
3
General Safety Information and Symbols
4
Seal & Valve Kits
6
Service Intervals
6
Seal & Valve Kit Pump Diagram
7
Tools Needed
7
Servicing the Seals
8
Manifold and Seal Removal
8
Plunger Removal
12
Plunger Reassembly
13
Manifold and Seal Installation
14
Manifold Reassembly
16
Servicing the Valves
18
Valve Removal
18
Valve Disassembly
19
Valve Reassembly
20
Valve Installation
21
Crankcase Component Inspection
22
Reference Information
24
Preventive Maintenance Schedule
24
Torque Chart
25
Inlet Manifold Screws Torque Sequence
25
Discharge Manifold Screws Torque Sequence
25
Technical Bulletin Reference Chart
25
Notes 26
Diagnosis and Maintenance
28
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.