Central Pneumatic 65903 Installationshandbuch

240 VOLT COMPRESSOR

4 HP PEAK – 29 GALLON

65903

SET UP AND OPERATING INSTRUCTIONS

Distributed exclusively by Harbor Freight Tools®.

3491 Mission Oaks Blvd., Camarillo, CA 93011

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.

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.

Revised Manual 10g

SKU 65903 For technical questions, please call 1-800-444-3353. Page 2

PRODUCT SPECIFICATIONS

Motor 240 V~ / 60 Hz / 9 A (Load) / Single Phase / 4 HP Peak /

3 HP Working / 3,400 RPM / Two Capacitor (Run & Start)

Overload Reset Button 15 A

Power Cord 12 Gauge, 3-Wire (Stripped), 10 Ft. Long

240 Volt Power Cord Plug Not Included.

Air Tank Capacity 29 Gallons

SCFM Airow 8.74 @ 40 PSI / 7.7 @ 70 PSI /

7.47 @ 90 PSI / 6.67 @ 115 PSI

Compressor Pump Type Dual V-Head Cylinder / Belt Driven

Safety Valve Setting 120 PSI

Air Pressure Gauge Indicators 0-200 PSI in 5 PSI Increments

Automatic Shut Off Capability Shut Off at 115 PSI / Starts at 80 PSI

Required Air Quick Connector (Not Included) 1/4”-18 NPT Quick Connector

V-Belt Size A1118 Li

Base Mounting Holes Qty. 4 @ 1/2” Diameter

UNPACKING

When unpacking, check to make sure all the parts shown on the Parts List at the

end of the manual 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.

SAVE THIS MANUAL

You will need this manual for the safety warnings and precautions, assembly,

operating, inspection, maintenance and cleaning procedures, parts list and assembly

diagram. Keep your invoice with this manual. Write the invoice number on the inside

of the front cover. Keep this manual and invoice in a safe and dry place for future refer-

ence.

GENERAL SAFETY RULES

WARNING!

READ AND UNDERSTAND ALL INSTRUCTIONS

Failure to follow all instructions listed below may

result in electric shock, re, and/or serious injury.

SAVE THESE INSTRUCTIONS

WORK AREA

Keep your work area clean and well lit.1. Cluttered benches and dark areas invite

accidents.

SKU 65903 For technical questions, please call 1-800-444-3353. Page 3

Do not operate compressors in explosive atmospheres, such as in the pres-2.

ence of ammable liquids, gases, or dust. Compressors create sparks which

may ignite the dust or fumes.

Keep bystanders, children, and visitors away while operating a compressor.3.

Provide barriers or shields as needed.

ELECTRICAL SAFETY

Grounded compressors must be plugged into an outlet properly installed1.

and grounded in accordance with all codes and ordinances. Never remove

the grounding prong or modify the plug in any way. Do not use any adapter

plugs. Check with a qualied electrician if you are in doubt as to whether the

outlet is properly grounded. If the compressors should electrically malfunction

or break down, grounding provides a low resistance path to carry electricity away

from the user.

Do not expose compressors to rain or wet conditions.2. Water entering an elec-

tric motor will increase the risk of electric shock.

Do not abuse the Power Cord.3. Never use the Power Cord to pull the Plug

from an outlet. Keep the Power Cord away from heat, oil, sharp edges, or

moving parts. Replace damaged Power Cords immediately. Damaged Power

Cords increase the risk of electric shock.

AN EXTENSION CORD MUST4. NEVER BE USED WITH THIS ITEM. Connecting

this item to an outlet through an extension cord MAY CAUSE ELECTRICAL

DAMAGE TO THE MOTOR and could present a FIRE HAZARD.

PERSONAL SAFETY

Stay alert. Watch what you are doing, and use common sense during use.1.

Do not use while tired or under the inuence of drugs, alcohol, or medica-

tion. A moment of inattention while operating may result in serious personal injury.

Dress properly. Do not wear loose clothing or jewelry. Contain long hair.2.

Keep your hair, clothing, and gloves away from moving parts. Loose clothes,

jewelry, or long hair can be caught in moving parts.

Avoid accidental starting.3. Be sure the Power Switch Lever is turned off

before plugging in. Plugging in compressors with the Power Switch Lever on,

invites accidents.

Remove adjusting keys or wrenches before turning the compressor on.4. A

wrench or a key that is left attached to a rotating part of the compressor may result

in personal injury.

Do not overreach. Keep proper footing and balance at all times.5.

SKU 65903 For technical questions, please call 1-800-444-3353. Page 4

Use safety equipment. Always wear eye protection.6. Make sure you are wear-

ing your protective clothing, safety glasses with side shields and dust mask or air

respirator, if appropriate.

TOOL USE AND CARE

Do not force the compressor. Use the correct compressor for your applica-1.

tion. The correct compressor will do the job better and safer at the rate for which it

is designed. Never attempt to force the compressor to provide more pressure than

it was designed for.

Do not use the compressor if the Power Switch Lever does not turn it on or2.

turn it off. Any compressor that cannot be controlled with the Power Switch Lever

is dangerous and must be repaired or replaced.

Disconnect the Power Cord Plug from the power source before making any3.

adjustments, changing accessories, or storing the compressor. Such preven-

tive safety measures reduce the risk of starting the compressor accidentally.

Keep idle compressors out of reach of children and other untrained persons.4.

Compressors are dangerous in the hands of untrained users.

Maintain compressors with care. Keep all components of this product clean5.

and dry. Do not use a damaged compressor. Tag damaged compressors “Do not

use” until repaired.

Check for misalignment or binding of moving parts, breakage of parts, and6.

any other condition that may affect the compressor’s operation. If damaged,

have the compressor serviced before using. Many accidents are caused by

poorly maintained compressors.

Use only accessories that are recommended by the manufacturer for your7.

model. Accessories that may be suitable for one compressor may become haz-

ardous when used on another compressor.

SERVICE

Compressor service must be performed only by qualied repair personnel. 1.

Service or maintenance performed by unqualied personnel could result in a risk of

injury.

When servicing a compressor, use only identical replacement parts. Follow2.

instructions in the “Inspection, Maintenance, And Cleaning” section of this

manual. Use of unauthorized parts or failure to follow maintenance instructions

may create a risk of electric shock or injury.

SKU 65903 For technical questions, please call 1-800-444-3353. Page 5

SPECIFIC SAFETY RULES

CAUTION! Prior to its1. rst use, and thereafter prior to each subsequent use,

make sure to ll the Air Compressor with a premium quality, 30 weight, non-

detergent oil to the specied level. Running the Air Compressor with no oil or

with low oil will cause damage to the equipment and void its warranty. Refer to the

“Operating Instructions” section for details on lling the Air Compressor with oil.

When lling the Air Compressor with oil, make sure to 2. unscrew (do not pull)

the Oil Fill Cap to remove.

Use eye and ear protection.3. Always wear ANSI-approved safety impact eye

goggles, and ear plugs when using the Air Compressor.

Make sure all tools and equipment used with the Air Compressor are rated to4.

the appropriate air pressure capacity of the Air Compressor. Do not use any

tool or equipment that does not operate from 0-115 PSI. If necessary, check the

owner’s manual of the tool or equipment for its air pressure rating.

Always disconnect the Air Compressor from its electrical outlet, release any5.

remaining air pressure from the unit, and disconnect all pneumatic tools and

equipment from the unit, before performing any services or maintenance.

Avoid injury. Never direct the air jet at people or animals.6.

Inspect safety valve daily7. . If the safety valve is not working properly, tank pres-

sure can build up to dangerous levels. The tank could explode. For this reason,

pull the ring on the safety valve before each use and verify that it operates freely.

Replace safety valve if it does not operate freely.

Never remove or alter the factory sealed Safety Release Valve.

Do not attempt to readjust the automatic start and shutoff valves.8. Any

change to the automatic ON/OFF pressure levels will cause additional stress on

the motor, which may result in shortened motor life.

Drain the Air Compressor’s air tank every day.9. Do not allow moisture to build

up inside the Air Tank.

Do not unscrew the tank drain valve so that10. more than four threads are

showing.

Avoid risk of tank explosion11. .

Avoid weakening of tank by draining condensation after each use.a.

Never modify tank by drilling holes, welding to it, or modifying it’s parts.b.

The tank is designed, and factory set, to operate within a specic pressure range. c.

For that reason, never make adjustments to, or substitute parts, to the compres-

sor.

Avoid bodily injury from moving parts12. . The compressor cycles on automatically,

without notice. For this reason, always keep hands and arms away from compres-

SKU 65903 For technical questions, please call 1-800-444-3353. Page 6

sor parts when the unit is connected to electrical power. Always have compressor

safety guards in place before turning compressor on.

Use approved air hose13. . Never use plastic or PVC pipe (unless specied for Air

Compressors) to carry air under pressure. Regardless of its pressure rating, it can

burst under pressure. Use only metal pipe.

Never plug the power cord of this product into an electrical outlet while14.

standing on a wet or damp surface.

THIS AIR COMPRESSOR MAY REQUIRE A DEDICATED ELECTRICAL CIR-15.

CUIT AS THE AMPERAGE DRAW UNDER FULL LOAD, COMBINED WITH USE

OF ANY OTHER ITEM, MAY OVERLOAD YOUR CIRCUIT.

Always turn off the Air Compressor in the event of a power failure.16.

Performance of this Air Compressor may vary depending on variations in lo-17.

cal line voltage.

Maintain labels and nameplates on the Air Compressor.18. These carry important

information. If unreadable or missing, contact Harbor Freight Tools for a replace-

ment.

19. WARNING! People with pacemakers should consult their physician(s) before

using this product. Electromagnetic elds in close proximity to a heart pacemaker

could cause interference to or failure of the pacemaker.

20. 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.)

21. WARNING! 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 opera-

tor.

SAVE THESE INSTRUCTIONS

GROUNDING

1. WARNING! The Power Cord (31) requires the attachment of a 240 volt,

grounded, 3-Prong Plug (not included). For safety purposes, only a qualied,

certied, electrician should attach a Plug to the Power Cord. Never modify the

Plug in any way. To comply with the National Electric Code, and to provide addi-

tional protection from the risk of electrical shock, this product should only be con-

nected to a 240 volt electrical outlet that is properly grounded.

Do not use the tool if the Power Cord or Plug is damaged.2. If damaged, have it

repaired by a qualied service facility before use.

SKU 65903 For technical questions, please call 1-800-444-3353. Page 7

Symbology

Double Insulated

Canadian Standards Association

Underwriters Laboratories, Inc.

V~ Volts Alternating Current

AAmperes

n0xxxx/min. No Load Revolutions per Minute

(RPM)

To extend the life of your air tools and equipment, install an oiler and water lter

in series with the Air Outlet Valve (4) of the Air Compressor.

ASSEMBLY INSTRUCTIONS

To Attach A Power Cord Plug:

The Power Cord (31) requires the attachment of a 240 volt, grounded,

3-Prong Plug (not included). For safety purposes, only a qualied, certied, electrician

should attach a Plug to the Power Cord. Never modify the Plug in any way. To com-

ply with the National Electric Code, and to provide additional protection from the risk of

electrical shock, this product should only be connected to a 240 volt electrical outlet that

is properly grounded.

To Attach Quick Connector:

Prior to use, the Air Compressor requires the attachment of a 1/4” NPT Quick

Connector (not included) to the Air Outlet Valve (4). To do so, wrap approximately 4” of

pipe thread sealant tape (not included) around the male threads of the Quick Connector.

Then, rmly screw the Quick Connector into the Air Outlet Valve. (See Figure D.)

SKU 65903 For technical questions, please call 1-800-444-3353. Page 8

To Fill The Air Compressor With Oil:

AIR

OUTLET VALVE

(4)

OIL FILL CAP

(28)

OIL LEVEL

INDICATOR

(35)

FIGURE D

1. CAUTION! Prior to its rst use, and thereafter prior to each subsequent

use, make sure to ll the Air Compressor with a premium quality, 30 weight,

non-detergent oil. Running the Air Compressor with no oil or low oil will cause

damage to the equipment and void its warranty.

When lling the Air Compressor with oil, make sure to 2. unscrew (do not pull) the Oil

Fill Cap (28) to remove. (See Figure D.)

Once the Oil Fill Cap (28) is removed, ll the Air Compressor with a premium qual-3.

ity, 30 weight, non-detergent oil until the level of the oil rises to the midway point

in the Oil Level Indicator (35). Then, screw the Oil Fill Cap back onto the Oil Fill

Hole. (See Figure D.)

NOTE: When the Compressor is running, some oil will escape the Oil Fill Cap4.

bleeder; this is a normal occurance.

To Mount The Air Compressor:

1. WARNING! Verify that installation surface has no hidden utility lines before drill-

ing or driving screws.

For added safety, it is recommended that the Air Compressor be mounted on a at, 2.

level, sturdy, concrete oor surface capable of withstanding the weight of the Air

Compressor and any additional tools and accessories.

REV 09b

SKU 65903 For technical questions, please call 1-800-444-3353. Page 9

To mount the Air Compressor, with assistance, move the unit to the location where3.

it is to be used. Using the four 1/2” diameter mounting holes on the feet of the

Air Compressor as a template, mark the spots where four 1/2” diameter holes will

be drilled in the concrete or wood oor. Then, temporarily set the Air Compressor

aside.

Use a masonry drill bit to drill the four 1/2” diameter holes (about 3”-4” deep) into4.

the concrete. Make sure to blow out the concrete dust from the drilled holes.

Set the Air Compressor back to the location where it is to be used, and align the5.

four 1/2” diameter mounting holes in its legs with the four pre-drilled 1/2” holes in

the concrete or wood. Then use four minimum 3” long, 1/2” diameter, concrete an-

chor bolts or lag bolts (not included) to secure the Air Compressor to the concrete

or wood oor.

OPERATING INSTRUCTIONS

Air Compressor Pre-Start Procedures:

AIR

OUTLET VALVE

(4)

OIL FILL CAP

(28)

OIL LEVEL

INDICATOR

(35)

OUTLET

PRESSURE

GAUGE (5)

TANK

PRESSURE

GAUGE (5A)

PRESSURE

ADJUSTMENT

KNOB

(6)

POWER SWITCH LEVER

(9)

AIR OUTLET

VALVE

LEVER

OVERLOAD

RESET

BUTTON

(42)

SAFETY RELEASE VALVE (3) FIGURE E

1. Press the Power Switch Lever (9) down to its “OFF” position.

(See Figure E.)

Check the Oil Level Indicator (35), making sure the level of the oil is at the midway2.

point on the Indicator. (See Figure E.)

Check to make sure the Tank Drain Valve (33) is fully closed.3. NOTE: The Tank

Drain Valve is located on the bottom of the Air Tank (32). (See Assy. Diagram.)

SKU 65903 For technical questions, please call 1-800-444-3353. Page 10

Turn the Pressure Adjustment Knob (6)4. counterclockwise all the way to its “OFF”

position. (See Figure E.)

Turn Lever on Air Outlet Valve (4) backward to5. closed position. (See Figure E.)

Attach an air hose (not included) to Air Outlet Valve. Then, attach the other end of6.

the air hose to the pneumatic tool that will be used. (See Figure E.)

To Start The Air Compressor:

Plug the Power Cord Plug (31) into the nearest 240 volt, grounded, electrical out-1.

let.

Rotate the Power Switch Lever (9) up to its2. “ON” position. (See Figure E.)

Turn the Pressure Adjustment Knob (6)3. clockwise about halfway to its “ON” posi-

tion. (See Figure E.)

Allow sufcient time for Tank Pressure Gauge (5A) to indicate at least 4. 80 PSI.

(See Figure E.)

Check to make sure the pneumatic tool which will be used is turned off and prop-5.

erly connected to air hose.

Once the Tank Pressure Gauge (5A) has reached at least 80 PSI, turn the Lever6.

on the Air Outlet Valve (4) forward to its open position in order to supply air to the

pneumatic tool. (See Figure E.)

If necessary, turn the Pressure Adjustment Knob (6)7. clockwise to increase air

pressure to the pneumatic tool or counterclockwise to decrease air pressure to the

pneumatic tool. The Outlet Pressure Gauge (5) shows the air pressure being sup-

plied to the tool. (See Figure E.)

To Use The Air Tank Safety Release Valve:

The Safety Release Valve (3) is used when decompression is needed quickly and1.

efciently. (See Figure E.)

To decompress the Air Tank (32) pressure, rotate the Power Switch Lever (9) to the2.

OFF position to turn off the Air Compressor. (See Figure E.)

Pull out on the Safety Release Valve Ring (3) to immediately release air pressure3.

in the Air Tank (32). (See Figure E.)

To Use The Overload Reset Button:

The Air Compressor is equipped with an internal electrical circuit breaker which is1.

designed to automatically shut off the Air Compressor in the event its Motor (14)

becomes overheated. (See Figure E.)

Should the Air Compressor automatically shut off at a pressure less than 115 PSI,2.

rotate the Power Switch Lever (9) down to its “OFF” position. (See Figure E.)

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