JobSmart 3901726 User Manual

3901726
4 Gallon Air Compressor
Assembly & Operating Instructions
READ ALL INSTRUCTIONS AND WARNINGS BEFORE USING THIS PRODUCT.
This manual provides important information on proper operation & maintenance. Every effort has been
made to ensure the accuracy of this manual. These instructions are not meant to cover every possible
condition and situation that may occur. We reserve the right to change this product at any time
without prior notice.
IF THERE IS ANY QUESTION ABOUT A CONDITION BEING SAFE OR UNSAFE, DO NOT
OPERATE THIS PRODUCT!
HAVE QUESTIONS OR PROBLEMS? DO NOT RETURN THIS PRODUCT TO THE
RETAILER - CONTACT CUSTOMER SERVICE.
If you experience a problem or need parts for this product, visit our website http://www.buffalotools.com
or call our customer help line at 1-888-287-6981, Monday-Friday, 8 AM - 4 PM Central Time. A copy of the
sales receipt is required.
FOR CONSUMER USE ONLY – NOT FOR PROFESSIONAL USE.
KEEP THIS MANUAL, SALES RECEIPT & APPLICABLE WARRANTY FOR FUTURE
REFERENCE.

JobSmart 3901726 Specifications

General

Brand	JobSmart
Model	3901726
Category	Air Compressor
Language	English

Summary

Recognize Safety Symbols, Words and Labels

Understanding Safety Instructions

Explains the importance of safety warnings and defines WARNING and CAUTION alert symbols for hazard communication.

Service

Important Safety Instructions for Service

Crucial safety guidelines to be followed when performing any service or maintenance on the air compressor.

Assembly

Installing the Air Chuck

Step-by-step instructions for correctly attaching the air chuck to the air regulator to prevent air leakage.

Installing the Air Filter

Procedure for threading and securely tightening the metal air filter into the cylinder head.

Operation

Setup and Power Connection

Covers initial start-up, installation location, power source connection, and extension cord usage.

Usage and Pressure Adjustment

Guidance on attaching air hoses, adjusting air pressure with the regulator, and cold weather starting.

Maintenance

Scheduled Maintenance Checks

Details daily, weekly, monthly, and semi-annual tasks for keeping the compressor in good condition.

Oil Checking and Changing

Instructions for monitoring the oil level and performing oil changes using SAE 5W-30 motor oil.

Troubleshooting

Compressor Start-up Issues

Diagnoses and solutions for when the compressor fails to start, including fuse and connection checks.

Low Air Pressure Problems

Addresses causes of low air pressure, such as restricted airflow, faulty check valves, or air leaks.

Safety Valve and Oil Discharge

Troubleshooting for safety valve activation and oil discharge in the air output.