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U.S. General 91824 User Manual

U.S. General 91824
30 pages
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STOCK# 91824
OPERATOR’S MANUAL
!
WARNING
To reduce the risk of injury, the user
must read and understand the
Operator’s Manual before using this
product.
30 GALLON
AIR COMPRESSOR
REV0905
12.75 HP KOHLER
GAS ENGINE
MODEL: US1230G
Warranty Statement
LIMITED
WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that this
product is free from defects in materials and workmanship for a period of two years
from date of purchase.
(90 days if used by a professional contractor or if used as rental equipment).
This warranty does not apply to damage due directly or indirectly to misuse, abuse,
negligence or accidents; repairs or alterations outside our facilities; or lack of
maintenance. We shall in no event be liable for death, injuries to persons or
property, or for incidental, contingent, special or consequential damages arising
from the use of our product.
Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation of exclusion may not apply to you. To take
advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the
complaint must accompany the merchandise. If our inspection verifies the defect,
we will either repair or replace the product at our election or we may elect to refund
the purchase price if we cannot readily and quickly provide you with a replacement.
We will return the repaired products at our expense, but if we determine there is no
defect, or that the defect resulted from causes not within the scope of our warranty,
then you must bear the cost of returning the product. This warranty gives you
specific legal rights and you may also have other rights which vary from state to
state.
3491 Mission Oaks Blvd. PO Box 6009 Camarillo, CA 93011 (800)444-3353
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U.S. General 91824 Specifications

General IconGeneral
BrandU.S. General
Model91824
CategoryAir Compressor
LanguageEnglish

Summary

Warranty Statement

U.S. General ★ Air Superiority ★ LIMITED WARRANTY

Details the limited warranty for the product, covering defects in materials and workmanship for a specified period.

Safety Instructions

Safety Signal Words

Explains the meaning of Danger, Warning, Caution, and Notice symbols used in the manual.

Before Using the Air Compressor

Provides essential safety precautions to observe before operating the air compressor.

Safety Instructions

Fueling and Environmental Safety

Covers warnings related to fueling, ventilation, and preventing fire hazards.

Engine Safety Precautions

Details precautions for preventing injury from carbon monoxide, flammable gases, and operating conditions.

Safety Instructions

Spraying Precautions

Provides guidelines for safe spraying operations, avoiding flammable materials and ignition sources.

Breathable Air Warning

Advises that the compressor does not supply breathing air and requires special equipment for such use.

Glossary of Terms

Key Terminology

Defines essential terms like ASME Safety Valve, PSI, ACFM, Air Delivery, and Regulator for understanding the manual.

Unpacking and Checking Contents

Initial Inspection

Guides on removing the compressor from the carton and performing an initial inspection.

Troubleshooting

Common Issues and Solutions

Lists common problems like overheating, unit stalling, excessive noise, and oil in discharge air with probable causes and remedies.

Troubleshooting

Low Discharge Pressure

Addresses issues causing low discharge pressure and provides solutions like checking for air leaks or valve problems.

Getting to Know Your Air Compressor

Component Identification

Identifies key parts of the air compressor, including the belt guard, air filter, and various valves.

Operating Your Compressor

Pre-Operation Checks and Start-Up

Details essential checks before starting and the procedure for starting the engine.

Adjusting the Regulator

Explains how to adjust the air pressure output using the regulator knob.

Maintenance

Routine Maintenance Schedule

Outlines daily, weekly, and monthly maintenance tasks for optimal performance.

Safety Precautions

General Safety Guidelines

Provides an overview of safety warnings, cautions, and notes for safe operation.

Hazard Identification

Details specific hazards like explosive fuel, rotating parts, hot parts, and electrical shock.

Safety Precautions

Specific Hazard Warnings

Highlights warnings for accidental starts, carbon monoxide, and explosive gases during battery charging.

Kohler Engine Features

Explains the benefits and features of Kohler engines, emphasizing durability and serviceability.

Oil Recommendations

Selecting the Right Oil

Guides on choosing the correct API service class and SAE viscosity grade for engine oil based on temperature.

Fuel Recommendations

Gasoline and Blends

Details approved gasoline types, octane ratings, and acceptable alcohol/ether blends for engine use.

Engine Identification Numbers

Locating Engine Information

Explains where to find model, specification, and serial numbers for parts ordering and reference.

Operating Instructions

Pre-Start Checklist

Lists essential checks before starting the engine, including oil, fuel, and component security.

Cold Weather Starting

Provides tips for starting the engine in cold weather conditions, focusing on oil and fuel.

Engine Start-Up Procedure

Details the steps for starting the engine, including fuel shut-off, throttle, choke, and starter operation.

Stopping the Engine

Shutdown Procedure

Outlines the correct steps to safely stop the engine and close the fuel valve.

Battery and Operation

Battery Requirements

Mentions the standard 12-volt battery and the need for recharging if the charge is insufficient.

Operating Guidelines

Covers engine operation angles, cooling, and engine speed, with warnings about damage and warranty voidance.

Maintenance Instructions

Scheduled Maintenance

Details the maintenance schedule based on frequency (daily, 25 hrs, 100 hrs, annually) for various engine parts.

Checking Engine Oil Level

Provides a step-by-step guide on how to check the engine oil level correctly before each use.

Checking Engine Oil Level

Ensuring Correct Oil Level

Explains the importance of maintaining the correct oil level and how to check it using the filler neck.

Oil Sentry™ System

Oil Level Monitoring

Describes the function of the Oil Sentry™ system which stops the engine if oil level is low.

Change Oil

Oil Change Procedure

Details the process for changing engine oil, including initial service and regular intervals.

Reduction Systems

System Types and Maintenance

Explains 2:1 and 6:1 reduction systems and their lubrication/maintenance requirements.

Air Cleaner Service

Precleaner Maintenance

Guides on washing and reoiling the foam precleaner element every 25 hours.

Paper Element Replacement

Instructs on replacing the paper air cleaner element every 100 hours or as needed.

Air Cleaner Service

Heavy Duty Air Cleaner Service

Details cleaning and servicing procedures for heavy-duty air cleaner systems.

Clean Air Intake/Cooling Areas

Ensuring Proper Cooling

Emphasizes keeping the engine's cooling areas, fins, and screens clean for optimal performance.

Ignition System

Ignition System Overview

Explains the electronic magneto ignition system and its limited maintenance requirements.

Check Spark Plug

Spark Plug Inspection and Gapping

Details how to check, clean, gap, and replace the spark plug annually or every 100 hours.

Battery Charging

Safe Battery Charging

Provides warnings about explosive gases produced during battery charging and safe practices.

Fuel Valve Maintenance

Fuel Valve Cleaning

Explains how to clean the fuel valve screen and cup every 100 hours of operation.

Fuel Tank Filter Maintenance

Cleaning the Fuel Filter

Guides on cleaning the serviceable fuel tank filter daily or as needed.

Muffler Screen and Spark Arrestor Service

Muffler Screen Cleaning (CS4, CS6)

Details instructions for removing, cleaning, and checking the muffler screen for CS4 and CS6 models.

Muffler Screen and Spark Arrestor Service

Muffler/Spark Arrestor Cleaning (CS8.5, CS10, CS12)

Provides cleaning instructions for muffler screens and spark arrestors on specific models.

Carburetor Troubleshooting and Adjustments

Carburetor Basics

Explains the carburetor's function and factory settings for idle mixture and fuel adjustment.

Carburetor Troubleshooting and Adjustments

Carburetor Adjustments

Details how to adjust idle fuel needle and idle speed for optimal engine performance.

Troubleshooting Common Engine Issues

Problem Diagnosis Table

Lists common engine problems and their potential causes, such as fuel, oil, or spark plug issues.

Storage Procedures

Long-Term Storage

Guides on preparing the engine for storage, including cleaning, oil change, and fuel system preparation.

Parts and Service Information

Ordering Replacement Parts

Explains the information needed for ordering parts, emphasizing genuine Kohler parts.

Major Repair and Service

Advises on seeking professional service for major repairs and provides contact information.

Model Designation Explained

Clarifies the meaning of model designations and suffix letters used for Kohler engines.

Product Specifications

Technical Data

Lists detailed specifications for various engine models, including bore, stroke, power, torque, and capacity.

Limited 2 Year Engine Warranty

Warranty Coverage and Exclusions

Outlines the terms of the 2-year warranty, including what is covered and excluded.

Emission Control Systems Warranty

Warranty Coverage Details

Explains the Federal and California Emission Control Systems Limited Warranty for small off-road engines.

Owner's Warranty Responsibilities

Lists the owner's duties regarding maintenance and proper use to ensure warranty validity.

Covered Emission Parts

Identifies specific engine parts covered under the emission control warranty.

Emission Control Systems Warranty

Warranty Limitations and Exclusions

Specifies what is not covered by the emission control warranty, such as misuse or lack of maintenance.

Maintenance and Repair Requirements

Maintaining Warranty Compliance

Emphasizes the importance of proper maintenance and record-keeping for warranty validity.

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