Summary of the content on the page No. 1
®
21 GALLON, 230 VAC,
CAST IRON VERTICAL
AIR COMPRESSOR
93271
OPERATING INSTRUCTIONS
®
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
© ®
Copyright 2005 by Harbor Freight Tools . All rights reserved. No portion of
this manual or any artwork contained herein may be reproduced in any shape
or form without the express written consent of Harbor Freight Tools.
For technical questions, please call 1-800-444-3353.
Summary of the content on the page No. 2
SPECIFICATIONS In tem Descriptio Mf aximum Air Pressure 115 PSI with Auto Shut-Of As ir Tank Capacity 21 Gallon 3.5 CFM at 90 PSI Air Flow Capacity 8.8 CFM at 40 PSI 3 HP Rated Motor / 230 Volt / 60 Hz / Electrical Requirements Single Phase / 7 Amps Pe ump Stage Singl AT ir Outlet Size 1/4” - 18 NP Ss hipping Weight 152 Pound P’ ower Cord 20 SAVE THIS MANUAL You will need this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning procedures, pa
Summary of the content on the page No. 3
6. DRESS SAFELY. Do not wear loose clothing or jewelry, as they can become caught in moving parts. Wear a protective hair covering to prevent long hair from becoming caught in moving parts. If wearing a long-sleeve shirt, roll sleeves up above el- bows. 7. DO NOT OVERREACH. Keep proper footing and balance at all times to prevent tripping, falling, back injury, etcetera. 8. INDUSTRIAL APPLICATIONS MUST FOLLOW OSHA REQUIREMENTS. 9. STAY ALERT. Watch what you are doing at all times. Use commo
Summary of the content on the page No. 4
SPECIFIC PRODUCT WARNINGS AND PRECAUTIONS 1. CAUTION: Make sure to fill the Air Compressor with a premium quality, 30-weight, non-detergent oil before each use. Running the Air Compressor with no oil or low oil will cause damage to the equipment. Note: The oil reservoir has an optimal capacity of 30 ounces of oil. 2. MAKE SURE ALL TOOLS AND EQUIPMENT USED WITH THE AIR COMPRES- SOR ARE RATED TO THE APPROPRIATE CAPACITY. Do not use any tool or equipment that does not operate at or above the PSI
Summary of the content on the page No. 5
UNPACKING When unpacking, check to make sure all the parts shown on the Parts Lists on pages 10, and 11 are included. If any parts are missing or broken, please call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible. OPERATING INSTRUCTIONS NOTE: For additional references to the parts listed below, refer to the Assembly Diagrams on pages 10, and 11. To Check The Oil Level: 1. The Oil Window (20B) is used to determine if oil is needed. The oil level should
Summary of the content on the page No. 6
2. Pull on the Pressure Relief Valve (5A) briefly to ensure that it does not stick. 3. Turn the Air Flow Valve (6A) to its “OFF” position. 3. Connect the air hose (not provided) to the Air Flow Valve (6A) of the Air Compres- sor. Then, connect the other end of the air hose to the pneumatic tool (not provided) that is to be used. 4. To extend the life of your air tools and equipment, it is recommended to install an oiler and water filter in series (available from Harbor Freight Tools) with the A
Summary of the content on the page No. 7
sure Adjuster clockwise to increase the air output to the tool, up to the working air pressure (115 PSI) as indicated on the Tank Pressure Gauge (3A). Never exceed the maximum PSI for the tool being used or any component of the air system. 3. Turn the Tool Pressure Adjuster (2A) counterclockwise to decrease the air output to the tool. To Use The Tank Pressure Relief Valve: 1. The Tank Pressure Relief Valve Ring (5A) is used when decompression is needed quickly and efficiently. It is also desig
Summary of the content on the page No. 8
INSPECTION, MAINTENANCE, AND CLEANING 1. WARNING: Always disconnect the Air Compressor from its electrical supply source before performing any inspection, maintenance, or cleaning. 2. BEFORE EACH USE, inspect the general condition of the Air Compressor. Check all air fittings for leaks. Check for loose screws, misalignment or binding of moving parts, cracked or broken parts, damaged power cord and plug, and any other con- dition that may affect the safe operation of this tool. If abnormal noi
Summary of the content on the page No. 9
PARTS LIST A / ASSEMBLY DIAGRAM Pn artD. escriptio Qt tyPn arD. escriptio Qty 1h AO1 N/OFF Power Switc 1r 1AQ1 uick Release Couple 2r AT1 ool Pressure Adjuste 1l 2AR2 ubber Whee 3e AT1 ank Pressure Gaug 1r 3AW2 ashe 4e AT1 ool Pressure Gaug 1t 4AN2 u 5e AP1 ressure Release Valv 1g 5AF1 ittin 6e AA1 ir Flow Valv 1t 6AO1 il Drain Plug with Gaske 7r AA1 ir Filte 1t 7AF2 oo 8d AA1 ir Flow Li 1e 8AU1 nloader Valv 9k AA1 ir Tan 1e 9AP1 olyurethane Unloader Tub 1e 0AW1 ater Drain Valv 2e 0AC1 opper Air
Summary of the content on the page No. 10
PARTS LIST B / ASSEMBLY DIAGRAM B Pn artD. escriptio Qt tyPn arD. escriptio Qty 1t BB4 ol 1t 9BG1 aske 2e BC1 ylinder Cas 2w 0BO1 il Windo 3t BG1 aske 2t 1BC1 rankshaft Bol 4t BV1 alve Sea 2t 2BC1 rankshaf 5t BG1 aske 2e 3BC1 rankshaft Cas 6r BC1 ylinde 2r 4B*S1 tato 7g BC2 ompression Rin 2g 5B*B2 earin 8g BO1 il Scraping Rin 2e 6B*A1 rmatur 9n BP1 isto 2r 7BC1 apacito 1t 0BG1 aske 2l 8BR1 adiating Fan Whee 1n 1BP1 iston Pi 2g 9BR1 etainer Rin 1r 2B*E1 nd Cove 3t 0BB4 ol 1r 3BC2 rankshaft Retain
