Ingersoll-Rand 231 User Manual

SAFETY PRECAUTIONS excesses I N R U 0 N
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This manual contains important safety lnfomiation and should be
made available to all personnel who operate and/or maintain this M A N U A L
product. Carefully read this manual before attempting to operate
or DEl'fO|'l'l1 maintenance.
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Este manual contiene informacion importante y debe estar al
alcance de todo el personal que opera y/0 mantiene este producto.
Lea cuidadosamente este manual antes de intentar operar 0 efectuar
cualquier mantenimiento a este producto.
Model 231 Model 7T2
Model 41 Model 15T2
Two-Stage
High Pressure
Industrial
Air Compressors
INGERSOLL-RAN D®
AIR COMPRESSORS
_ _ _ _ _ Form SCD-453
Refer all communications to the nearest lngersoll-Rand Full Service Distributor.
Para cualquier consulta, contacte a su Distiibutor lngersoll-Rand mas cercano. May 1989

Ingersoll-Rand 231 Specifications

General

Drive Size	1/2 inch
Max Torque	600 ft-lbs
Free Speed	8000 RPM
Air Consumption	4.2 CFM
Impacts per Minute	1200
Air Inlet	1/4 inch NPT
Weight	5.8 lbs
Length	7.3 inches

Summary

SAFETY PRECAUTIONS ENCLOSED

NOTICE AND ORDERING INFORMATION

Notice on Part Usage

Ordering Instructions

How to specify and order replacement parts.

GENERAL DESCRIPTION

APPLICATION AND DUTY CYCLE

Compressor Application Range

Intermittent Duty Formula

Guidelines for operating compressors above 200 psig.

INSTALLATION AND START-UP RECOMMENDATIONS

Low Oil Level Switch

Installation and function of the optional switch.

Fuse Selection and Troubleshooting

Location and Foundation

Magnetic Starter Requirements

Importance of starter for motor protection.

Discharge Piping Installation

Electrical Wiring Guidelines

Wire sizing and electrical connection advice.

Baseplate Mounting

REGULATION AND CONTROL MODES

Automatic Start/Stop and Pressure Adjustment

Control via pressure switch.

Constant Speed and Dual Control

OPERATION AND COMPONENT MAINTENANCE

Basic Operations and Checks

Operating checks, lubrication, motor care.

Aircooled Intercooler Details

Function, cleaning, and pressure indications.

Safety Valve Operation

Function, settings, and replacement of safety valves.

Pilot Valve Adjustment

Procedures for adjusting the pilot valve.

Compressor Lubrication

Oil level checks and frame oil changes.

Starting Unloading System

How the system reduces starting load.

Air-Cooled Aftercooler Function

Air Inlet Filter/Silencer Maintenance

Importance and cleaning of the air intake filter.

TROUBLE GUIDE

MAINTENANCE SCHEDULE AND PROCEDURES

Routine Maintenance Intervals

Air Valve Cleaning Procedures

Detailed procedures for valve cleaning.

Belt Installation and Adjustment

Torque Value Table

PARTS LIST AND KITS

Compressor Component Parts

CRITICAL SAFETY WARNINGS

Air Quality and Vapor Hazards

Breathing air suitability and toxic vapors.

Electrical and Fire Hazards

Voltage, flammable vapors, and static.

Mechanical and Thermal Hazards

Risks from moving parts, pressure, and heat.