Atlas Copco LT7 User Manual

Instruction book
Atlas Copco Stationary Air Compressors
LE2, -3, -5, -7, -10, -15, -20
LT2, -3, -5, -7, -10 (50 Hz)
LT15/60, -15-30, -15, -20, -20-30
LF2, -3, -5, -7, -10
Instruction book
Copyright 2004, Atlas Copco Airpower n.v., Antwerp, Belgium.
Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in
particular to trademarks, model denominations, part numbers and drawings.
This instruction book meets the requirements for instructions specified by the machinery directive
98/37/EC and is valid for CE as well as non-CE labelled machines.
No. 2920 1585 00
Registration code: APC L / 38 / 985
2004-07
2920 1585 00 - 1 -

Atlas Copco LT7 Specifications

General

Brand	Atlas Copco
Model	LT7
Category	Air Compressor
Language	English

Summary

Instruction Book

Atlas Copco Stationary Air Compressors

Identifies the product line and manufacturer of the air compressors.

1 Leading Particulars

1.3 Regulating System

Explains the mechanisms controlling compressor pressure and operation.

2 Installation and Handling

2.2 Installation Proposals

Guidance on proper placement, ventilation, and environmental conditions.

2.3 Electrical Connections

Essential information for wiring, power supply, and safety grounding.

2.4 Settings of Overload Relay, Fuses, and Cable Size

Specifies settings for electrical protection and cable sizing.

3 Operating Instructions

Safety Precautions

Critical safety guidelines for operating the compressor.

3.1 Initial Start-up

3.2 Starting

3.3 Stopping

4 Maintenance

4.2 Preventive Maintenance Schedule

Outlines routine maintenance tasks and recommended intervals.

4.3 Lubrication of LE/LT Compressors

5 Servicing and Adjustment Procedures

5.4 Adjustment of MDR4S Pressure Switch

Procedure for adjusting the MDR4S pressure switch settings.

5.5 Adjustment of MDR3 Pressure Switch

Procedure for adjusting the MDR3 pressure switch settings.

5.6 Adjustment of Pilot Valve on Trolley

5.7 Safety Valve

5.8 Relief Valve

6 Problem Solving

7 Principal Data

Safety Precautions

Installation

Operation

Guidelines for safely operating the compressor.

Maintenance

Safety guidelines for performing maintenance tasks.