U.S. General 92649 User Manual (English)

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A/C MANIFOLD GAUGE SET

R134A

ASSEMBLY AND OPERATING INSTRUCTIONS

All technicians opening the refrigeration

circuit in automotive air conditioning systems

MUST be certified in refrigerant recovery and

recycling procedures in compliance with Section

609 of the Clean Air Act Amendments of 1990.

For additional information regarding ozone

depletion and air conditioning service regulations,

please visit EPA’s website:

http://www.epa.gov/ozone

In addition, service of air conditioning

systems can result in overfilling, creating

a serious EXPLOSION HAZARD, if done

by an untrained or inexperienced

technician.

REV 05f, 09i

Visit our website at: http://www.harborfreight.com

Read this material before using this product.

Failure to do so can result in serious injury.

SAVE THIS MANUAL.

2004 by Harbor Freight Tools

contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight

Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual

product may differ slightly from the product described herein. Tools required for assembly and service may not

be included.

For technical questions or replacement parts, please call 1-800-444-3353.

92649

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U.S. General 92649 Specifications

General

Brand	U.S. General
Model	92649
Category	Power Tool
Language	English

Summary

DANGER

Refrigerant Handling and Certification

Technicians must be certified in refrigerant recovery and recycling procedures per the Clean Air Act Amendments of 1990.

Explosion Hazard Warning

Improper AC service can lead to overfilling and explosion if done by untrained technicians.

General Safety Advice

Read and Save Manual

Read all material before use to prevent serious injury. Save this manual for future reference.

Safety Warnings and Precautions

Work Area and Personal Safety

Keep work area clean, observe conditions, ensure good lighting, keep children away, and dress properly.

Protective Equipment

Always wear ANSI approved safety goggles, dust mask/respirator, and heavy duty work gloves.

Safety Warnings and Precautions (Continued)

Operational Safety Guidelines

Specific Product Warnings

Engine Operation Hazards

Never start an engine in an enclosed area due to carbon monoxide. Keep hands away from moving/hot engine parts.

Refrigerant Handling Precautions

R-134a can cause frostbite. Do not disconnect pressurized hoses. Use caution opening AC lines and avoid discharging refrigerant.

Product Overview

Operation: Static Pressure Reading

Static Reading Preparation

Connecting for Static Reading

Operation: Static Pressure Reading (Continued)

Taking Static Pressure Reading

Operation: Performance Test

Performance Test Setup

Connecting Charging Hose for Test

Operation: Performance Test (Continued)

Engine Running Test Procedure

Set AC to max cooling for 10 mins with engine running at 1500 RPM in a well-ventilated area.

U.S. General 92649 User Manual

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