Atlas Copco LT150 User Manual

Atlas Copco Stationary Air Compressors
*2920125704*
No. 2920 1257 04
Registration code: APC L / 38 / 989
Replaces 2920 1257 03
2000-10
LE/LT15, -22, -40, -55, -75, -110, -150
LF15, -22, -40, -55, -75
www.atlascopco.com
• Copyright 2000, 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.
Instruction Book

Atlas Copco LT150 Specifications

General

Brand	Atlas Copco
Model	LT150
Category	Air Compressor
Language	English

Summary

Installation and Handling

Electrical Connections

Guidelines for connecting the compressor electrically.

Settings of Overload Relay, Fuses, and Cable Size

Specifications for electrical protection and wiring.

Operating Instructions

Initial Start-up

Steps for the first-time operation of the compressor.

Starting

Procedures for starting the compressor.

Stopping

Procedures for stopping the compressor.

Maintenance

Preventive Maintenance Schedule

Schedule of recommended maintenance tasks.

Lubrication of LE/LT Compressors

Guidelines for compressor lubrication and oil types.

Servicing and Adjustment Procedures

Unloader or Check Valve

Procedures for servicing the unloader or check valve.

Valves

Procedures for replacing faulty valves and components.

MDR4 Pressure Switch Adjustment

How to adjust the MDR4 pressure switch settings.

MDR5/6 Pressure Switch Adjustment

How to adjust the MDR5/6 pressure switch settings.

Adjustment Pilot Valve on Trolley

Adjustment procedure for the pilot valve on trolley units.

Safety Valve

Procedure for testing and replacing the safety valve.

Relief Valve on LF55/75, LE75 to -150 and LT

Information regarding the relief valve on specific models.

Problem Solving

Insufficient Air Pressure

Troubleshooting steps for low air pressure issues.

Unit Does Not Speed Up

Troubleshooting steps for units not reaching operating speed.

Air Receiver Pressure Rises Above Maximum

Relief Valve Blows

Receiver Does Not Hold Pressure

Frequent Starting/Short Operating Periods

High Oil Consumption

Unit Does Not Start

Troubleshooting steps when the unit fails to start.

Overload Relay Cuts Out

Troubleshooting steps for overload relay tripping.

Principal Data

LE 10 Bar Compressor Data

LF 10 Bar Compressor Data

LT 15 Bar Compressor Data

LT 20 Bar Compressor Data

LT 30 Bar Compressor Data