Eaton Vickers 4525V-20-282 Series User Manual

I–3155–SRevised 07-01-86
Quiet Intra-Vane Type Double Pumps
2520V, 3520V, 3525V, 4520V, 4525V & 4535V
Series -20 Design 282/283 Suffix
Overhaul Manual
Vickers
®
Vane Pumps

Eaton Vickers 4525V-20-282 Series Specifications

General

Brand	Eaton
Model	Vickers 4525V-20-282 Series
Category	Water Pump
Language	English

Summary

Introduction

Purpose of Manual

Describes manual's scope for piston type pumps and motors, covering latest design series.

General Information

Lists related publications, parts catalogs, and installation drawings available from Vickers.

Description

General Description

Details the 282/283 suffix pump, sound reduction, and cartridge kit design with 12 vanes.

Principles of Operation

General Operation

Explains the vane pump operation and the balanced intra-vane design for efficiency.

Installation and Operating Instructions

Installation Drawings

Refers to drawings detailing operating characteristics, dimensions, and port locations.

Mounting and Drive Connections

Guides on proper pump mounting, shaft alignment, and direct mounting procedures.

Shaft Rotation

Explains pump rotation direction and warns against operating in the wrong direction.

Piping and Tubing

Recommends cleaning, minimizing fittings, and proper bending of tubing for installation.

Hydraulic Fluid Recommendations

Discusses fluid's role, selection, and system cleanliness for pump longevity and performance.

Service and Maintenance

Sound Levels

Identifies factors like viscosity and aeration that cause pump noise in hydraulic systems.

Overload Protection

Explains the function of relief valves in limiting system pressure and protecting components.

Start-Up Procedure

Outlines initial pump start-up, priming, and checks to prevent damage from lack of lubrication.

Circuit Inspection

Details periodic checks for fluid condition, connections, and components to prevent breakdowns.

Adding Fluid to the System

Specifies procedures for adding hydraulic fluid, emphasizing cleanliness and filtration.

Overhaul

Adjustments

Notes that no periodic adjustments are needed other than maintaining shaft alignment.

Lubrication

Covers internal fluid lubrication and recommends dry lubricant for shaft splines to prevent wear.

Replacement Parts

Stresses the importance of using genuine Vickers parts for reliable operation and longevity.

Product Life

Discusses factors affecting product longevity and the need for user-defined periodic maintenance.

Troubleshooting Guide

Lists common pump difficulties, probable causes, and remedies for effective troubleshooting.

Service Tools

Unit Removal

Provides safety precautions and steps for safely removing the pump unit from the hydraulic system.

Disassembly Procedure

Details the step-by-step process for disassembling the pump, including cleaning and marking parts.

Component Cleaning

Inspection, Repair, and Replacement

Guides on inspecting internal parts for wear/scoring and replacing worn components for maximum overhaul life.

Assembly Procedure

Outlines the process for assembling the pump, referring to drawings and reverse order of disassembly.

Start-Up and Test

Start-Up

Describes the post-overhaul start-up procedure, including priming and purging air from the pump.

Testing the Unit

Advises on testing the unit using the hydraulic system and consulting drawings for speed/pressure specs.