2.5 hp, 21 gallon, 125 PSI Cast Iron Vertical air compressor
Model 67847 
Set up and Operating Instructions
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Read this material before using this product. Failure to do so can result in serious injury. Save this manual.
Copyright© 2010 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. 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.
Contents
Important SAFETY Information 3
General Compressor
Safety Warnings 3
Air Compressor Safety Warnings 5
Grounding 6
110-120 V~ Grounded Compressors: Compressors with Three
Prong Plugs 7 Symbology 7
Specifications 8 Unpacking 8
Instructions for putting into use 8
Functions 8
Work Piece and Work Area Set Up 9
Assembly/Mounting 9 Checking the Oil 10
General Operating Instructions 11
Emergency
Depressurization 12 Automatic Shut off System 12
Maintenance And
Servicing 13
Cleaning, Maintenance, and Lubrication 13
Maintenance Schedule 14 Oil Maintenance 14
Draining Moisture from the Tank 15
Air Filter Maintenance 15 Troubleshooting 16
Parts List 18 ASSEMBLY DIAGRAM 19
Limited 1 year / 90 day Warranty 20
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SKU 67847 |
Save This Manual
Keep this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference.
Important SAFETY
Information
In this manual, on the labeling, and all other information provided with this product:
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
DANGER indicates a hazardous
situation which, if not avoided, will result in death or serious injury.
WARNING indicates a
hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION, used with the safety
alert symbol, indicates a hazardous situation which, if
not avoided, could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.
CAUTION, without the safety alert
symbol, is used to address practices not related to personal injury.
General Compressor Safety
Warnings
WARNING Read all safety warnings and instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
1.Work area safety
a.Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b.Do not operate the Compressor in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Compressor motors produce sparks which may ignite the dust or fumes.
c.Keep children and bystanders away from an operating compressor.
2.Electrical safety
a.Compressor plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with a grounded compressor. Standard plugs and
SKU 67847 |
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matching outlets will reduce risk of electric shock.
b.Do not expose the compressor to rain or wet conditions. Water entering a compressor will increase the risk of electric shock.
c.Do not abuse the cord. Never use the cord for pulling or unplugging the compressor. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
3.Personal safety
a.Stay alert, watch what you are doing and use common sense when operating this compressor. Do not use this compressor while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating a compressor may result in serious personal injury.
b.Use personal protective equipment. Always wear eye protection. Safety equipment such as a dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
c.Prevent unintentional starting. Ensure the switch is in the offposition before connecting to power source or moving the compressor.
d.Only use safety equipment that has been approved by an appropriate standards agency.
Unapproved safety equipment may not provide adequate protection. Eye protection must be ANSI-approved and breathing protection must be
NIOSH-approved for the specific hazards in the work area.
4.Compressor use and care
a.Do not use the compressor if the switch does not turn it on and off. Any compressor that cannot be controlled with the switch is dangerous and must be repaired.
b.Disconnect the plug from the power source of the compressor before making any adjustments, changing accessories, or storing it. Such preventive safety measures reduce the risk of starting the compressor accidentally.
c.Store an idle compressor out of the reach of children and do not allow persons unfamiliar with the compressor or these instructions to operate it. A compressor is dangerous in the hands of untrained users.
d.Maintain the compressor. Keep the compressor clean for better and safer performance. Following instructions for lubricating and changing accessories. Keep dry, clean and free from oil and grease. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the compressor’s operation. If damaged, have the compressor repaired before use. Many accidents are caused by a poorly maintained compressor.
e.Use the compressor in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the compressor for operations different from those intended could result in a hazardous situation.
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SKU 67847 |
5.Service
a.Have your compressor serviced by a qualified repair person using only identical replacement parts.
This will ensure that the safety of the compressor is maintained.
Air Compressor Safety Warnings
1.Risk of fire or explosion - Do not spray flammable liquid in a confined area or towards a hot surface. Spray area must be well-ventilated. Do not smoke while spraying or spray where spark or flame is present. Arcing parts - Keep compressor at least 20 feet away from explosive vapors, such as when spraying with a spray gun.
2.Risk of bursting - Do not adjust regulator higher than maximum stated pressure of attachment.
3.Risk of injury - Do not direct air stream at people or animals.
4.To reduce the risk of electric shock, do not expose to rain. Store indoors.
5.Wear ANSI-approved safety goggles during use.
6.Do not use to supply breathing air.
7.Do not use the air hose to move the compressor.
8.Drain Tank daily and after use. Internal rust causes tank failure and explosion.
9.Add correct amount of compressor oil before first use and every
use. Operating with the incorrect amount of oil causes permanent damage and voids warranty. To prevent damage, do not use with
overfilled or low oil. Slowly fill to full line, wait 2 minutes and fill back up to full line. Compressor has small passages that will fill slowly.
10.Do not remove the Pressure Switch (54) cover or adjust the internal components.
11.Do not use the air hose to move the compressor.
12.Compressor head gets hot during operation. Do not touch it or allow children nearby during or immediately following operation.
13.Release the pressure in the storage tank before moving.
14.The use of accessories or attachments not recommended by the manufacturer may result in a risk of injury to persons.
15.All air line components, including hoses, pipe, connectors, filters, etc., must be rated for a minimum working pressure of 125 PSI, or 150% of
the maximum system pressure, whichever is greater.
16.USE OF AN EXTENSION CORD
IS NOT RECOMMENDED. If you choose to use an extension cord, use the following guidelines:
RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS
(120 VOLT)
NAMEPLATE |
EXTENSION CORD |
|||
AMPERES |
|
LENGTH |
|
|
(at full load) |
25’ |
50’ |
100’ |
150’ |
0 – 6 |
18 |
16 |
16 |
14 |
6.1 – 10 |
18 |
16 |
14 |
12 |
TABLE A |
|
|
|
|
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RECOMMENDED MINIMUM WIRE GAUGE FOR EXTENSION CORDS
(120 VOLT)
NAMEPLATE |
EXTENSION CORD |
|||
AMPERES |
|
LENGTH |
|
|
(at full load) |
25’ |
50’ |
100’ |
150’ |
10.1 – 12 |
16 |
16 |
14 |
12 |
12.1 – 16 |
14 |
12 |
Do not use. |
|
TABLE A |
|
|
|
|
a.Make sure your extension cord is in good condition.
b.Be sure to use an extension cord which is heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table A shows
the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.
17.Industrial applications must follow
OSHA guidelines.
18.Maintain labels and nameplates on the compressor. These carry important safety information. If unreadable or missing, contact
Harbor Freight Tools for a replacement.
19.This product is not a toy. Keep it out of reach of children.
20.Operate unit on level surface. Check oil level daily and fill to marked level if needed.
21.People with pacemakers should consult their physician(s) before use. Electromagnetic fields in close proximity to heart pacemaker could
cause pacemaker interference or pacemaker failure.
22.WARNING: The brass components of this product contain lead, a chemical known to the State of
California to cause birth defects (or other reproductive harm). (California Health & Safety code § 25249.5, et seq.)
23.The warnings, precautions, and instructions discussed in this instruction manual cannot
cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.
Save these instructions.
Grounding
To prevent electric shock
and death from incorrect grounding wire connection:
Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. Do not modify the power cord plug provided with the compressor. Never remove the grounding prong from the plug. Do not use the compressor if the power cord or plug is damaged. If damaged, have it repaired by a service facility before use. If the plug will not
Page 6 |
For technical questions, please call 1-800-444-3353. |
SKU 67847 |
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