Coaire CHSA-7.5M User Manual

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COAIRE M-Series

EXTROLLER Control System

MAINTENANCE MANUAL AND PARTS LIST

MODEL

CHSA-7.5M CHSA-10M

CHSA-15M CHSA-20M

SERIAL NO. :

MODEL NO. :

MODEL CHSA-15CHSA-20M

COAIRE TECHNOLOGIES, CORPORATION

All rights reserved Printed in USA

ROTARY SCREW AIR COMPRESSORS

For proper and safe use of the compressor, please follow all instructions and safety precautions as identified in

this manual, along with general safety regulations and practices.

Table of Contents

Questions and Answers:

Y
ywatkinsAug 2, 2025
Why does my Coaire Air Compressor have high oil consumption?
- J
  jaredevansAug 3, 2025
  High oil consumption or discharge air containing oil mist in your Coaire Air Compressor can be due to several factors. If the oil level in the separator tank is too high, remove some oil. If there's an oil leak from the mechanical seal, consult the distributor. Also, try retightening components, replacing parts, correcting issues, changing the oil after flushing, or readjusting setting points.
J
Jeremy AllenAug 8, 2025
What to do if my Coaire Air Compressor has high discharge temperature?
- L
  Lori SloanAug 8, 2025
  High discharge temperature in your Coaire Air Compressor, leading to safety shutdowns, can be caused by high ambient temperature. Improving room ventilation can help. Other solutions include adding oil, cleaning or replacing components, checking or replacing parts, checking or replacing the fan and filter, and changing the oil.
D
Danielle SantiagoAug 14, 2025
How to reduce noise and vibration in my Coaire Air Compressor?
- J
  Jason DavidAug 14, 2025
  Noise and vibration in your Coaire Air Compressor can stem from loose components and joints; retighten them. If the noise is coming from the air end, consult the distributor. Other solutions include adjusting tension or replacing parts, correcting the installation, and cleaning the fan.

Coaire CHSA-7.5M Specifications

General

Brand	Coaire
Model	CHSA-7.5M
Category	Air Compressor
Language	English

Summary

Safety and Precautions

Warnings

Critical safety warnings for operation and maintenance.

Chapter I General Information

Standard Specifications

Lists technical data like motor output, air delivery, and pressure.

Installation and Wiring

Covers handling, location, and electrical connection requirements.

Chapter II Operating Instructions

Initial Start-Up

Procedures for first-time unit operation and checks.

Daily Operation

Daily checks, starting, and stopping procedures.

Chapter III Functional Descriptions

Compressor Air-End

Describes the air-end components like rotors, housing, and seals.

Lubrication System

Explains the function and components of the oil circulation system.

Safety Device

Lists various safety mechanisms and shutdown features.

Chapter IV Scheduled Maintenance

Standard Maintenance Schedule

Provides a schedule for routine checks and replacements.

Chapter V Trouble Shooting

Trouble Symptoms and Solutions

Lists common issues, their causes, and suggested remedies.

Chapter VI Corrective Maintenance

Oil Filter

Instructions for replacing the oil filter element.

Suction Filter

Procedures for cleaning or renewing the suction filter.

V-Belts

Guidelines for tension check, adjustment, and alignment.

Appendix-A Compressor Part List

Part List for Model CHSA-7.5/10M(NK40)

Detailed parts breakdown for specific models.

C. Wiring Diagram for Model CHSA-7.5/10/15/20M

Warranty Claim Report

Startup Report for Rotary Screw Air Compressor

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