Atlas Copco LT15/30

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 LT15/30 Specifications

General

Model	LT15/30
Pressure	30 bar
Weight	410 kg
Maximum working pressure	30 bar
Working Pressure	30 bar
Type	Piston
Free Air Delivery	1.5 m³/min
FAD capacity	1.5 m³/min

Summary

Leading Particulars

General Description

Regulating System

Installation and Handling

Installation Proposals

Offers guidance and recommendations for installing the compressors.

Electrical Connections

Details on wiring and connecting the compressor to electrical power.

Settings of Overload Relay - Fuses - Cable Size

Guidance on setting overload relays, selecting fuses, and cable sizing.

Operating Instructions

Initial Start-Up

Procedures for the very first start-up of the compressor unit.

Starting

Step-by-step guide on how to start the compressor.

Stopping

Instructions on how to safely stop the compressor.

Maintenance

Preventive Maintenance Schedule of the Compressor

A schedule outlining recommended maintenance tasks and intervals.

Lubrication of LELT Compressors

Servicing and Adjustment Procedures

Unloader or Check Valve

Valves

Adjustment of MDR4 S Pressure Switch

How to adjust the MDR4S pressure switch for stopping and starting pressures.

Adjustment of MDR3 Pressure Switch

How to adjust the MDR3 pressure switch for stopping and starting pressures.

Adjustment of Pilot Valve on Trolley

How to adjust the pilot valve on trolley-mounted units.

Safety Valve (SV)

Relief Valve

Problem Solving

Insufficient Air Pressure

Unit Does Not Speed Up

Air Receiver Pressure Rises Above Maximum

Relief Valve Blows

Receiver Does Not Hold Pressure

Too Frequent StartingToo Short Operating Periods

Unit Does Not Start

Overload Relay Cuts Out

Safety Precautions

Installation

Guidelines for installing the compressor unit safely.

Operation

Essential safety practices during compressor operation.

Maintenance

Safety precautions for maintenance and repair tasks.