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LEYBOLD Manuals
Water Pump
Trivac D8A
Manual
LEYBOLD Trivac D8A Manual
Trivac a series dual stage. rotary vane pump
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Safety Precautions
Table of Contents
List of Figures
List of Tables
Identification Plate
Manual Key
Model and Catalog Numbers
Section 1 -Introduction
Direct Drive Mechanism
Pumping Mechanism
High Vacuum Stage Pump Cylinder
Section 2 - Principles of Operation
Gas Ballast Mechanism
Second Stage Pump Cylinder
Opening and Closing the Valve
D4A Module
Purpose and Function of the Gas Ballast Valve
Pump Fluid
Cross Section of the Gas Ballast Valve
Lubricating Fluid
Anti-Suck Back Mechanism
Receiving
Reporting Shipping Damage/Shortage
Section 3 - Preparing and Installing the Pump
Connecting the Pump to the System
Reporting Incorrect Shipment
Initial Filling with Lubricating Fluid
Making the Electrical Connection
Section 4 - Starting, Operating, and Maintaining the Pump
Checking the Direction of Rotation
Start-Up
Using the Gas Ballast Valve During Pump Warm-Up
Operation
Preventative Maintenance
Checking the Lubricating Fluid Level
Technical Data
Changing the Pump Fluid
Changing the Lubricating Fluid
Checking the Pump Fluid for Contamination
Long Term Storage
Checking the Dirt Trap
Avoiding Oil Leaks During Shipping and Storage
Module Replacement Procedure
Required Materials and Tools
Section 5 - Disassembly, Cleaning, and Assembly Instructions
5-A-2 Required Tools
Removing the Module from the Pump
Assembled Pump
Disassembling the Module
Module Attached to Coupling Housing
Module, Side View
Front End of Module Minus Coupling and Centrifugal Switch
Rear End of Module Minus the Disk
Removing the Cylindrical Pins from the Module
Disassembling the Remaining Parts
High Vacuum Stage Rotor Removed from the Shaft
Miscellaneous Disassembled Parts
D4A Module Showing Retaining Bracket and Valve Plate
Removing the Radial Shaft Seal from the End Plates
Coupling Housing and Motor
Removing the Valve Stop and Plate
Cleaning and Inspecting the Disassembled Pump
Removing the Oil Level Glass from the Coupling Housing
5-E-2 Instructions for Cleaning and Inspecting All Pump Models
5-E-L Special .For Service Pumps
Special Requirements for Extreme-Corrosive Service Pumps
Reassembling the Pump
Rotor, Bearing, Shaft and Vane Critical Dimensions
Disassembled Motor
Parts Required for Installing the Rotational Lock Bearing
Rotors/Shaft/Center Bearing Plate Assembly
Driving Long Cylindrical Pins Aligning HV Cylinder and Center Bearing
Pulling Second Stage Pump Cylinder Tight against the Center Bearing
Driving Short Cylindrical Pins Aligning Rear End Plate and HV Cylinder
Install the Radial Shaft Seal into the Front End Plate
Reassembling the Module to the Coupling Housing
Section 6 - Troubleshooting
Troubleshooting Contents
Troubleshooting Chart
Parts List Contents
Section 7 - Parts List
Disassembled Pump
Spare Modules, Gasket Sets and Repair Kits
Complete List of Parts
Exploded Isometric Drawing
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Table of Contents
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Lubricating Fluid
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Vacuum Process
Measuring and
LEY BOLD
Vacuum Technology
Engineering
Analytical Technology
LEYBOLD VACUUM PRODUCTS INC.
Part Number 722-78-001 • Edition L
TRIVAC®'.'
Dual Stage
Rotary Vane Pump
MANUAL
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Table of Contents
Troubleshooting
Troubleshooting Contents
46
Troubleshooting Chart
47
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This manual is also suitable for:
Trivac d2a
Trivac d16a
Trivac d4a
Trivac d30a
Trivac d60a
Trivac d90a
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