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Atlas Copco LE9N

Atlas Copco LE9N
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No. 2920 5997 03
Instruction book for Piston Compressors
LE/LT5, -6, -7, -8, -9, -11, -12
LT530, -730, -930, -1230
LE7N, LE9N
LE/LT7, -8, -9, -11, -12 Pack
Industrial Air Division
B-2610 Wilrijk - Belgium
Replaces
No. 2920 5997 02
1994-12
This instruction book meets the requirements for instructions
specified by the machinery directive 89/392/EEC and is valid
for CE as well as non-CE labelled machines
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Atlas Copco LE9N Specifications

General IconGeneral
ModelLE9N
Working Pressure10 bar / 145 psi
Motor Power2.2 kW / 3 hp
Number of Cylinders2
Control SystemPressure switch
TypePiston

Summary

1 Leading Particulars

1.1 General Description

Overview of LE, LEN and LT compressor types, their variants, and working pressures.

1.2 Air Flow

Description of the air intake, compression, and discharge process for different compressor models.

1.3 Regulating System

Explanation of how the compressor pressure is controlled using switches and valves.

2 Installation

2.1 Electrical Connections

Guidelines for safe and correct electrical installation and wiring of the compressor unit.

3 Operating Instructions

3.1 Initial Start-up

Procedures for first-time operation, including checks, voltage connection, and direction of rotation.

3.2 Starting

Steps to start the compressor, select operating mode, and open the air outlet valve.

3.3 Stopping

Safe procedures for shutting down the compressor, including switching off voltage and closing valves.

4 Maintenance

4.1 Preventive Maintenance Schedule

A schedule of recommended maintenance tasks at various intervals for optimal compressor upkeep.

5 Servicing and Adjustment Procedures

5.1 Unloader or Check Valve

Instructions for replacing unloader or check valve assemblies based on operating hours.

5.2 Valves

Procedures for replacing compressor valves, including disassembly and reassembly guidance.

5.3 Air Filter

Steps for servicing and replacing the air filter element to ensure clean air intake.

5.4 Setting of the Air Pressure Switch

How to adjust the stopping and starting pressures by modifying the air pressure switch settings.

5.5 Safety Valve

Annual testing procedure for the safety valve and criteria for replacement.

5.6 Relief Valve

Guidance on testing and replacing the relief valve, which protects the low-pressure side.

6 Problem Solving

7 Principal Data

8 Conversion List of SI Units into British Units

9 Electrical Diagrams

10 Dimension Drawings

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