Husky C302H Use And Care Manual

THANK YOU

We appreciate the trust and confidence you have placed in Husky through the purchase of this air compressor.

We strive to continually create quality products designed to enhance your home. Visit us online to see our full line of

products available for your home improvement needs. Thank you for choosing Husky!

USE AND CARE GUIDE

30-GALLON PORTABLE AIR COMPRESSOR

Questions, problems, missing parts?
Before returning to the store, call
Husky Customer Service
8 a.m. - 6 p.m., EST, Monday - Friday

1-888-43-HUSKY

HUSKYTOOLS.COM

Item #723 883

Model #C302H

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Safety Information

Table of Contents

Safety Information ....................................2

Work Area Safety ...................................3

Personal Safety .....................................3

Moving the Compressor .........................3

Air Compressor and

Pneumatic Tool Safety ...........................4

Electrical Safety .....................................5

Warranty ...................................................7

Pre-Operation ...........................................8

Specifications ........................................8

Duty Cycle ..............................................8

Package Contents ..................................8

System Components ..............................9

Placement of the Air Compressor ........10

Breaking in the Pump .........................11

Attaching the Hose ..............................12

Tool Usage ...........................................13

Operation.................................................14

Preparing for Start-up ..........................14

Starting the Compressor ......................15

Checking the Safety Valve ...................15

Running the Air Compressor ................16

Draining the Tank .................................17

Maintenance ...........................................18

General Maintenance ...........................18

Oil Maintenance ...................................19

Cleaning the Air Filter .........................20

Replacing the Belt ................................20

Adjusting the Belt Tension ...................21

Aligning the Pulley and Flywheel .........22

Torquing the Compressor Head Bolts ...23

Care and Cleaning ..................................23

Troubleshooting ......................................24

Service Parts ..........................................26

This manual contains information that is important for
you to know and understand. This information relates
to protecting your safety and preventing equipment
problems. To help you recognize this information, we
use the symbols below. Please read the manual and pay
attention to these symbols.

DANGER: Indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.

WARNING: Indicates a potentially hazardous situation
which, if not avoided, could result in death or serious

injury.

CAUTION: Indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate

injury.

NOTICE: Indicates a practice not related to personal injury which, if
not avoided, may result in property damage.

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Safety Information (continued)

WORK AREA SAFETY

□ Keep your work area clean and well lit. Ensure

floors are not slippery from wax or dust.

□ Operate the air compressor in an open area at least

18 in. (0.5 m) away from any wall or object that
could restrict the flow of fresh air to ventilation
openings.

WARNING: Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases, or dust. Power tools create sparks which
may ignite the dust or fumes. Keep bystanders, children,
and visitors away while operating tools. Distractions can
cause you to lose control.

PERSONAL SAFETY

□ Keep proper footing and balance at all times.

Proper footing and balance enables better control
of the tool in unexpected situations

□ Do not use on a ladder or unstable support.

WARNING: Operating any power tool can result in foreign
objects being thrown into your eyes, which can result in
severe eye damage. Before beginning operation, always
wear safety goggles, safety glasses with side shields, or
a full face shield when needed. Always use eye protection
marked to comply with ANSI Z87.1.

WARNING: This product contains chemicals known to
the State of California to cause cancer and birth defects or
other reproductive harm. Wash hands after handling.

WARNING: Use safety equipment. Always wear eye
protection with side shields when operating power tools.
A dusk mask, non-skid safety shoes, hard hat, or hearing
protection must be used for appropriate conditions.

MOVING THE AIR COMPRESSOR

□ Grasp the handle of the compressor and tilt the

compressor back to rest on the wheels.

□ When the location is reached, slowly lower the

compressor to the ground. Always store the
compressor in a vertical position resting on the
rubber bumpers and wheels.

□ When transporting the compressor in a vehicle,

trailer, etc., make sure the tank is drained and the
unit is secured with straps to prevent tipping. Use
care when driving to prevent tipping the unit over in
the vehicle. Damage can occur to the compressor
or surrounding items if the compressor is tipped.
Always use two people when lifting and lift from
the recommended lifting points. Do not lift by the
wheels or shroud.

WARNING: Risk of unsafe operation. Ensure proper
footing and use caution when rolling the compressor so
that the unit does not tip or cause loss of balance.

CAUTION: The wheels and handle do not provide
adequate clearance, stability, or support for pulling the
unit up and down stairs or steps. The unit must be lifted or
pushed up a ramp.

WARNING: This compressor is not equipped for, and
should not be used to supply breathing air. Additional
equipment would be necessary to properly filter and
purify the air to meet minimal specifications for Grade D
breathing, as described in Compressed Gas Association
Commodity, Specification G 7.1 - 1966, OSHA 29 CF9

1910.134. Compressed Gas Association, 4221 Walney
Road, Fifth Floor, Chantilly, VA 20151-2923, [phone],
www.cganet.com. Any such additional equipment has
not been examined and no implication of proper use for
breathing air is intended or implied.

CAUTION: Always disconnect the air supply and power
supply before making adjustments, servicing a tool, or
when a tool is not in use.

WARNING: Stay alert when operating a power tool. Do
not use the tool while tired or under the influence of drugs,
alcohol, or medication.

WARNING: Do not wear loose clothing or jewelry.
Contain long hair. Keep your hair, clothing, and gloves away
from moving parts. Loose clothes, jewelry, or long hair can
be caught in moving parts.

WARNING: Never touch any exposed metal parts on
compressor during or immediately after operation. The
compressor will remain hot for several minutes after
operation. Do not reach around protective shrouds or
attempt maintenance until the unit has been allowed to
cool.

CAUTION: The compressor is too heavy to be lifted by
one person. Obtain assistance from others before lifting.

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Safety Information (continued)

AIR COMPRESSOR AND
PNEUMATIC TOOL SAFETY

□ Keep compressors as far from the spraying area as

possible: at least 15 ft. (4.6 m) from the spraying
area and all explosive vapors.

□ If connected to a circuit protected by fuses, use time-

delay fuses with this product.

□ Ensure the hose is free of obstructions or snags.

Entangled or snarled hoses can cause loss of
balance or footing, and may become damaged.

□ Use the air compressor only for its intended use. Do

not alter or modify the unit from the original design
or function. Never weld or drill holes in the air tank.

□ Never leave a tool unattended with the air hose

attached.

□ Do not operate this tool if it does not contain a

legible warning label.

□ Do not continue to use a tool or hose that leaks air or

does not function properly.

□ Do not attempt to pull or carry the air compressor

by the hose.

□ Your tool may require more air consumption than

this air compressor is capable of providing.

□ Never direct a jet of compressed air toward people

or animals.

□ Protect your lungs. Wear a face or dust mask if the

operation is dusty.

□ Do not use this air compressor to spray chemicals.

Your lungs can be damaged by inhaling toxic
fumes. A respirator may be necessary in dusty
environments or when spraying paint.

□ This compressor is equipped with a thermal

overload protector which will shut off the motor if it
becomes overheated.

WARNING: Do not attempt to modify this tool or create
accessories not recommended for use with this tool.
Any such alteration or modification is misuse and could
result in a hazardous condition leading to possible serious
personal injury.

CAUTION: Do not use the compressor in an environment
that is dusty or otherwise contaminated. Using the air
compressor in this type of environment may cause damage
to the unit.

CAUTION: Risk of bursting. Do not adjust the regulator
to result in output pressure greater than the marked
maximum pressure of the attachment. Do not use at
pressure greater than the rated maximum pressure of this
compressor.

CAUTION: To reduce the risk of electric shock, do not
expose the compressor to rain. Store indoors.

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Safety Information (continued)

ELECTRICAL SAFETY (EXTENSION CORDS)

□ Use only 3-wire extension cords that have 3-prong

grounding plugs and 3-pole receptacles that accept
the product’s plug. Make sure your extension
cord is not damaged. When using a power tool at
a considerable distance from the power source,
use an extension cord heavy enough to carry the
current that the product will draw. An undersized
extension cord will cause a drop in line voltage,
resulting in a loss of power and causing the motor
to overheat.

□ Use the chart provided below to determine the

minimum wire size required in an extension cord.
Only round jacketed cords listed by Underwriter’s
Laboratories (UL) should be used.

□ Only use 50 feet or less, round jacketed cords listed

by Underwriter’s Laboratories (UL).

□ When operating a power tool outside, use an

outdoor extension cord marked “W-A” or “W”.
These cords are rated for outdoor use and reduce
the risk of electric shock.

ELECTRICAL SAFETY (ELECTRICAL
CONNECTION)

□ This air compressor is powered by a precision built

electric motor. It should be connected to a power
supply that is 120 volts, 60 Hz, AC only (normal
household current).

□ Do not operate this tool on direct current (DC). A

substantial voltage drop will cause a loss of power
and the motor will overheat. If the air compressor
does not operate when plugged into an outlet,
double check the power supply.

WARNING: When using an extension cord, keep it clear
of the working area. Position the cord so that it will not get
caught on lumber, tools, or other obstructions while you
are working with a power tool. Failure to do so can result
in serious personal injury.

WARNING: Check extension cords before each use.
If damaged, replace immediately. Never use the air
compressor with a damaged cord since touching the
damaged area could cause electrical shock resulting in
serious personal injury.

WARNING: Improperly connecting the equipment-
grounding conductor can result in a risk of electrical
shock.

CAUTION: Avoid body contact with grounded surfaces
such as pipes, radiators, ranges, and refrigerators. There
is an increased risk of electric shock if your body is
grounded.

CAUTION: Do not expose power tools to rain or wet
conditions. Water entering a power tool will increase the
risk of electric shock.

CAUTION: Replace damaged cords/wiring immediately.
Damaged cords/wiring increase the risk of electric shock.

NOTICE: Use longer air hoses instead of long extension cords. Your
air compressor will run better and last longer.

Ampere rating

(on air compressor data plate)

14-16

Cord

Length

Wire Size (AWG)

25 ft. 14

50 ft. 12

Used on 12 gauge - 20 amp circuit.

NOTE: AWG=American Wire Gauge

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Safety Information (continued)

ELECTRICAL SAFETY (SPEED AND WIRING)

□ The no-load speed of this product is approximately

3,450 rpm. This speed is not constant and
decreases under a load or with lower voltage.

□ For voltage, the wiring in a shop is as important as

the motor’s horsepower rating. A line intended only
for lights cannot properly carry a power tool motor.
Wire that is heavy enough for a short distance will
be too light for a greater distance. A line that can
support one power tool may not be able to support
two or three products.

ELECTRICAL SAFETY (GROUNDING
INSTRUCTIONS)

□ This product must be grounded. In the event of an

electrical short circuit, grounding reduces the risk
of electric shock by providing an escape wire for
the electric current. This product is equipped with
a cord having a grounding wire with an appropriate
grounding plug. The plug must be plugged into an
outlet that is properly installed and grounded in
accordance with all local codes and ordinances.

□ Substitution of the signal word “DANGER” for

“WARNING” is not prohibited when the risk
associated with the product is such that a situation
exists which if not avoided will result in death or
serious injury.

□ Check with a qualified electrician or service

personnel if these instructions are not completely
understood or if in doubt as to whether the tool is
properly grounded.

□ Do not modify the plug provided; if it will not fit

the outlet, have the proper outlet installed by a
qualified electrician.

□ This product is for use on a nominal 120-Volt

circuit and has a grounding plug similar to the
plug shown. Only connect the product to an outlet
having the same configuration as the plug. Do not
use an adapter with this product.

GROUNDING PIN

120-Volt GROUNDED OUTLET

WARNING: Improper installation of the grounding plug
may result in a risk of electric shock. When repair or
replacement of the cord or plug is required, do not connect
the grounding wire to either flat blade terminal. The wire
with insulation having an outer surface that is green with
or without yellow stripes is the grounding wire.

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LIMITED WARRANTY

WHAT IS COVERED

The manufacturer warrants to the original retail purchaser that this product is free from defect in material and
workmanship and agrees to repair or replace, at the manufacturer’s discretion, any defective product free of charge
within these time periods from the date of purchase.

This warranty is valid for two (2) years if the product is used for personal, family, or household use, and ninety (90)
days if used for any other purpose, such as commercial or rental use.

This warranty extends to the original retail purchaser only and commences on the date of the original retail purchase.

Any part of the product manufactured or supplied by the manufacturer and found in the reasonable judgment of
the manufacturer to be defective in material or workmanship will be repaired or replaced by an authorized service
dealer without charge for parts and labor.

The product, including any defective part, must be returned to an authorized service dealer within the warranty
period. The expense of delivering the manufacturer’s product to the dealer for warranty work and the expense
of returning it back to the owner after repair or replacement will be paid by the owner. The manufacturer’s
responsibility in respect to claims is limited to making the required repairs or replacements and no claim of breach
of warranty shall be cause for cancellation or rescission of the contract of sale of any of the manufacturer’s product.
Proof of purchase will be required by the dealer to substantiate any warranty claim. All warranty work must be
performed by an authorized service dealer.

WHAT IS NOT COVERED

This warranty does not cover any of the manufacturer’s product that has been subject to misuse, neglect,
negligence, accident, or that has been operated in any way contrary to the operating instructions as specified in this
manual. This warranty does not apply to any damage to the manufacturer’s product that is the result of improper
maintenance or to any manufacturer’s product that has been altered or modified. The warranty does not extend to
repairs made necessary by normal wear or by the use of parts or accessories which are either incompatible with
the manufacturer’s product or adversely affect its operation, performance, or durability.

The manufacturer reserves the right to change or improve the design of any product without assuming any
obligation to modify any product previously manufactured. All implied warranties are limited in duration to the
stated warranty period. Accordingly, any such implied warranties including merchantability, fitness for a particular
purpose, or otherwise, are disclaimed in their entirety after the expiration of the appropriate two-year or ninety day
warranty period. The manufacturer’s obligation under this warranty is strictly and exclusively limited to the repair
or replacement of defective parts and the manufacturer does not assume or authorize anyone to assume for it any
other obligation. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation
may not apply to you. The manufacturer assumes no responsibility for incidental, consequential, or other damages
including, but not limited to, expense of returning the manufacturer’s product to an authorized service dealer and
expense of delivering it back to the owner, mechanic’s travel time, telephone or telegram charges, rental of a like
product during the time warranty service is being performed, travel, loss or damage to personal property, loss
of revenue, loss of use of the product, loss of time, or inconvenience. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Contact the Customer Service Team at 1-888-43-HUSKY or visit www.huskytools.com.

Warranty

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SPECIFICATIONS

Running horsepower

1.6 HP

Air tank capacity

30 gal.

Air pressure

155 PSI max.

Air delivery

6.2 SCFM at 40 PSI

5.3 SCFM at 90 PSI

Tank Fill-up

7.5 minutes

Lubrication

Oil lube

Input

120V, 60 Hz, Single phase

AC only, 15 Amps.

Minimum branch circuit requirement

15 A

Fuse type

Time delay

Net weight

148 lbs.

DUTY CYCLE

This air compressor pump is capable of running continuously. However, to prolong the life of your air compressor,
it is recommended that a 50% average duty cycle be maintained; that is, the air compressor pump should not run
more than 30 minutes in any given hour.

PACKAGE CONTENTS

Pre-Operation

Part Description Quantity

A Air Compressor Unit (fully assembled)

1

A

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SYSTEM COMPONENTS

Pre-Operation (continued)

Part Description

A

Auto(I)/Off(0) Switch: Turn this switch in the “Auto (I)” position to provide automatic power to the

pressure switch and “Off (O)” to remove power at the end of each use.

B

Pressure Switch: The pressure switch automatically starts the motor when the air tank pressure drops

below the factory set “cut-in” pressure. It stops the motor when the air tank pressure reaches the factory
set “cut-out” pressure.

C

Safety Valve: If the pressure switch does not shut off the air compressor at its “cut-out” pressure setting,

the safety valve will protect against high pressure by “popping out” at its factory set pressure (slightly
higher than the pressure switch “cut-out” setting).

D

Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank.

E

Air Compressor Pump: Compresses air into the air tank. Working air is not available until the compressor

has raised the air tank pressure above that required at the air outlet.

F

Drain Valve: The drain valve is located at the base of the air tank and is used to drain condensation at the

end of each use.

G

Regulator: Valve used to ensure that the tank pressure never reaches unsafe levels. It also allows the

user to adjust the pressure coming out of the tank to match what is needed for the task.

H

Pressure Regulator Gauge: The gauge that indicates the amount of pressure that the regulator is

providing to the tool.

I

Quick Connects: Fittings that are designed to accept a hose that allows pressure to be released for tool

usage.

J

Check Valve: When the air compressor is operating, the check valve is “open”, allowing compressed air

to enter the air tank. When the air compressor reaches “cut-out” pressure, the check valve “closes”,
allowing air pressure to remain inside the air tank.

A

F

B

H

G

I

C

D

E

J

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Pre-Operation (continued)

PLACEMENT OF THE AIR COMPRESSOR

WARNING: If any parts are damaged or missing do not
operate this product until the parts are replaced. Failure
to heed this warning could result in serious personal
injury.

CAUTION: Do not use in an environment that is dusty
or otherwise contaminated. Using the air compressor in
this type of environment may cause damage to the unit.

NOTICE: Long lengths of electrical wiring could cause power loss to
the motor.

□ Place the air compressor in a clean, dry, and well

ventilated area.

□ The air compressor must be positioned at least 18

in. (0.5 m) away from the wall or other obstructions
that will interfere with the flow of air.

□ Locate the air compressor as close to the main

power supply as possible to avoid using long
lengths of electrical wiring.

□ The air filter must be kept clear of obstructions

which could reduce the air flow to the air
compressor.

18 in.

(0.5 m)

Part Description

K

Thermal Overload Reset: (not shown) This motor has a manual thermal overload protector. If the motor

overheats for any reason, the overload protector will shut off the motor. The motor must be allowed to
cool down before restarting. To restart:

1. Place the Auto/Off switch in the “Off” position.

2. Allow the motor to cool.

3. Depress the red reset button on the motor.

4. Place the Auto/Off switch in the “Auto” postion to restart the motor.

L

Pressure Release Valve: (not shown) The pressure release valve located on the side of the pressure

switch, is designed to automatically release compressed air from the compressor head and the outlet
tube when the air compressor reaches “cut-out” pressure or is shut off. The pressure release valve allows
the motor to restart freely. When the motor stops running, air will be heard escaping from this valve for
a few seconds. No air should be heard leaking when the motor is running or after the unit reaches “cut­out” pressure.

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Pre-Operation (continued)

BREAKING IN THE PUMP

NOTE: Risk of property damage. Serious damage may
result if the following break-in instructions are not closely
followed.

NOTE: Minor leaks can cause the air compressor to
overwork, resulting in premature breakdown or inadequate
performance.

This procedure is required before the air compressor is
put into service and when the check valve or a complete
compressor pump has been replaced.

□ Make sure the Auto/Off switch (1) is in the “Off”

position.

□ Check the oil level in the pump. See the

Maintenance section for instructions.

□ Check all the wiring. Make sure the wires are

secure at all terminals and connections. Make sure
all contacts move freely and are not obstructed.

□ Open the drain valve (2) fully to permit air to escape

and prevent air pressure build-up in the air tank
during the break-in period.

□ Move the Auto/Off switch (1) to the “Auto” position.

The compressor will start.

□ Run the air compressor for 20 minutes. Make sure

the drain valve (2) and all air lines are open so
there is only a minimal air pressure build-up in the
tank.

□ Check all air line fittings and connections/piping

for air leaks by applying a soap solution. Correct if
necessary.

□ Check for excessive vibration. Readjust or shim the

air compressor feet, if necessary.

□ After 20 minutes, close the drain valve (2). The air

receiver will fill to “cut-out” pressure and the motor
will stop.

The air compressor is now ready for use.

1

2

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Pre-Operation (continued)

ATTACHING THE HOSE

WARNING: Do not attempt to modify this product or
create accessories not recommended for use with this
product. Any such alteration or modification is misuse and
could result in a hazardous condition leading to possible
serious personal injury.

WARNING: Do not attach the air chuck or other tools
to the open end of the hose until start-up has been
completed.

WARNING: Do not allow familiarity with products to
make you careless. Remember that a careless fraction of
a second is sufficient to inflict serious injury.

WARNING: Always wear safety goggles or safety
glasses with side shields when operating power tools.
Failure to do so could result in objects being thrown into
your eyes resulting in possible serious injury.

The compressor is assembled at the factory and ready for
use. Check all components to ensure secure assembly.
(such as: rubber feet, wheels, handle, quick connects,
gages, safety valve, air filter, drain valve, etc.)

□ Make sure the power to the air compressor is

disconnected.

□ Apply thread tape to the threaded connections

of the hose (not included), and attach the quick
coupler to the hose using a wrench (not included).

□ Apply the thread tape to the threaded connections

of the male plug, and attach the male plug to the
hose using a wrench.

□ Rotate the pressure regulator knob (1) fully

counterclockwise.

□ Insert the hose adapter end of the air hose (2) into

the female coupler end in the air compressor (3).

1

3

2

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Pre-Operation (continued)

Tool

Inflation Finishing nailing

Framing/

Roofing

Bolting

Inflator

Brad

nailer

Stapler

Finished/Roof-

ing nailer

Impact

Wrench

Heavy duty 1/2 in. and 3/4

in. impact wrench

Air ratchet

Recommended

Tool Use

Tool

Cutting/Drilling Surface Prep Painting

HVLP

Painting

Grease

Gun

Air hammer

Cut off

tool

Drill/

Impact

driver

Sander Grinder Paint gun Paint gun Grease Gun

Recommended

Tool Usage

TOOL USAGE

= Continuous = Intermittent = Not Recommended

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1

Preparing for start-up

WARNING: Risk of unsafe operation. Firmly grasp air
hose in hand when installing or disconnecting to prevent
hose whip.

WARNING: Risk of unsafe operation. Do not use
damaged or worn accessories.

WARNING: Risk of bursting. Too much air pressure
causes a hazardous risk of bursting. Check the
manufacturer’s maximum pressure rating for air tools and
accessories. The regulator outlet pressure must never
exceed the maximum pressure rating.

CAUTION: Risk of unsafe operation. Compressed air
from the unit may contain wa ter condensation and oil
mist. Do not spray un fil tered air at an item that could be
damaged by moisture. Some air tools and accessories may
require filtered air. Read the in struc tions for the air tools
and accessories.

NOTE: A regulator MUST be installed when using
accessories rated at less than 150 psi. The hose or
accessory will require a quick connect plug if the air outlet
is equipped with a quick connect socket.

□ Place the AUTO ( I ) / OFF ( O ) switch (1) to the

off position.

□ Close the drain valve (2).

□ Visually inspect air lines and fittings for leaks.

Operation

1

2

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2

Starting the compressor

WARNING: Risk of bursting. If any unusual noise or
vibration is noticed, stop the air compressor immediately
and have it checked by a trained service technician.

NOTE: When using the regulator and other accessories,
refer to the manufacturer’s instructions.

□ Plug the power cord into a proper receptacle.

□ Turn the AUTO ( I ) / OFF ( O ) switch (1) to the

auto position, and allow the tank pressure
to build. The motor will stop when the tank
pressure reaches “cut-out” pressure.

□ Adjust the regulator (2) to a PSI setting that

is needed for your application - be sure it
is within the safety standards required to
perform the task.

1

2

3

Checking the safety valve

DANGER: Do not tamper with the safety valve. Items
loosened from this device could fly up and hit you. Failure
to heed this warning could result in death or serious
personal injury. The safety valve automatically releases air
when the receiver pressure exceeds the preset maximum.
Check the valve before each day of use by pulling the ring
by hand.

WARNING: If air leaks after releasing the safety valve
ring or if the valve is stuck, do not use the air compressor
until the safety valve has been replaced. Using the air
compressor in this condition could result in serious
personal injury.

□ Set the AUTO ( I ) / OFF ( O ) switch (1) to the

on position, and wait for the tank to fill. The
compressor automatically shuts off when the
pressure reaches the preset maximum.

□ Set the AUTO ( I ) / OFF ( O ) switch (1) to the

off position.

□ Pull the ring on the safety valve (2) for 20

seconds to release the air.

□ Release the ring. Air stops escaping at

about 20 psi. If air continues to escape after
releasing the safety valve ring, discontinue
use and seek service before using the air
compressor again.

2

1

Operation (continued)

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16

4

Running the air compressor

WARNING: Always ensure the switch is in the OFF
position and regulator pressure gauge reads zero before
changing air tools or disconnecting the hose from the air
outlet. Failure to do so could result in possible serious
personal injury.

WARNING: Your tool may require more air consumption
than this air compressor is capable of providing. Check tool
manual to avoid damage to the tool or risk personal injury.

NOTE: Always use the minimum amount of air flow with
the pressure regulator knob. Using a higher pressure than
needed will drain air from the tank more rapidly and cause
the unit to cycle on more frequently.

□ Rotate the pressure regulator knob (1) to

the desired line pressure. Turning the knob
clockwise (+) increases air pressure at the
outlet; turning counterclockwise (-) reduces air
pressure at the outlet.

□ If using an inflation accessory, control the

amount of air flow with the pressure regulator
knob (1). Turning the knob fully counterclockwise
will completely stop the flow of air.

□ When finished, always drain the tank and unplug

the unit. Never leave the unit plugged in and/or
running unattended.

1

Operation (continued)

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Operation (continued)

5

Draining the tank

WARNING: Risk of unsafe operation. Air tanks contain
high pressure air. Keep face and other body parts away
from outlet of drain. Use eye protection [ANSI Z87.1 (CAN/
CSA Z94.3)] when draining, as debris can be kicked up
into face.

WARNING: Risk from noise. Use ear protection (ANSI
S12.6 (S3.19), as air flow noise is loud when draining.

WARNING: Risk of bursting. Water will condense in the
air tank. If not drained, water will corrode and weaken the
air tank causing a risk of air tank rupture.

NOTE: All compressed air systems generate condensate
that accumulates in any drain point (e.g., tanks, filter,
after-coolers, dryers). This condensate contains lubricating
oil and/or substances which may be regulated and must
be disposed of in accordance with local, state, and federal
laws and regulations.

NOTE: If drain valve is plugged, release all air pressure.
The valve can then be removed, cleaned, then reinstalled.

NOTE: Risk of property damage. Drained water from air
tank may contain oil and rust which can cause stains.

□ Set the AUTO ( I ) / OFF ( O ) switch (1) to the off

position.

□ Slowly bleed the air from the compressor

tank by pulling the safety valve to allow the
pressure to escape from the tank until the
pressure is approximately 20 psi.

□ Drain water from the tank by opening the drain

valve (2) on the bottom of the tank.

□ After the water has been drained, close the

drain valve (2). The air compressor can now
be stored.

2

1

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18

Maintenance

GENERAL MAINTENANCE

□ Condensate forms in the tank when

there is humidity in the air. Depending on
the environmental conditions, drain the
condensate daily and/or every hour. For
instructions, see Draining the tank section of
the manual.

□ The safety valve automatically releases air

when the receiver pressure exceeds the preset
maximum.

□ Inspect the tank annually for rust, pin holes,

or other imperfections that could cause it to
become unsafe.

□ Avoid using solvents when cleaning plastic

parts. Most plastics are susceptible to damage
from various types of commercial solvents and
may be damaged by their use.

□ Use clean cloths to remove dirt, dust, oil,

grease, etc.

WARNING: When servicing, use only identical Husky
replacement parts. Use of any other parts may create a
hazard or cause product damage.

WARNING: Always release all pressure, disconnect from
power supply, and allow unit to cool to the touch before
cleaning or making repairs on the air compressor.

WARNING: Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc., come
in contact with plastic parts. Chemicals can damage,
weaken or destroy plastic which may result in serious
personal injury. Electric tools used on fiberglass material,
wallboard, spackling compounds, or plaster are subject to
accelerated wear and possible premature failure because
the fiberglass chips and grindings are highly abrasive to
bearings, brushes, commutators, etc. Consequently, we
do not recommended using this tool for extended work on
these types of materials. However, if you do work with any
of these materials, it is extremely important to clean the
tool using compressed air.

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CHECKING THE OIL

WARNING: Drain the tank to release air pressure before
removing the oil fill cap or oil drain plug.

CAUTION: Overfilling with oil will cause premature air
compressor failure. Do not overfill.

□ The oil level should be to the middle of the sight

glass (3).

□ If needed remove the oil fill plug (1) and slowly

add oil until it reaches the middle of the sight
glass.

NOTE: Use 30W compressor oil or a heavy duty SAE
30W, non-detergent, SF grade or better oil. Do not use
multi-weight automotive engine oils, as they will reduce
compressor life. Under extreme winter condition use SAE-10
weight oil.

CHANGING THE OIL

□ Remove the oil fill plug (1).

□ Remove the oil drain plug (2) and drain the oil

into a suitable container.

□ Replace the oil drain plug (2) and tighten

securely.

□ Slowly add compressor oil until it reaches the

middle of the sight glass (3).

NOTE: Crankcase oil capacity is approximately 10.6 fluid
ounces (313,5 ml).

NOTE: When filling the crankcase, the oil flows very slowly
into the pump. If the oil is added too quickly, it will overflow
and appear to be full.

□ Replace the oil fill plug (1) and tighten securely.

Maintenance (continued)

1

3

2

NOTICE: Risk of property damage. Use air compressor oil only.
Multi-weight automotive engine oils like 10W30 should not be use in
air compressors. They leave carbon deposits on critical components,
thus reducing performance and compressor life.

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20

Maintenance (continued)

CLEANING THE AIR FILTER

From time to time, the air filter needs to be removed
and cleaned.

□ Turn the air compressor to the OFF position (O).

□ Unplug the air compressor.

□ Unsnap the air filter cover (1) to remove.

□ Remove the air filter (2) from the air filter

housing (3).

□ Blow compressed air through the air filter for

10-15 seconds.

1

2

3

1

2

REPLACING THE BELT

WARNING: Serious injury or damage may occur if parts
of the body or loose items get caught in moving parts.
Never operate the unit with the belt guard removed. The
belt guard should be removed only when the air compressor
power is disconnected.

□ Turn the air compressor off, lock out the power

supply, and relieve all air pressure from the air
tank.

□ Remove the four screws from the belt guard (1).

The front belt guard can now be lifted up and
away from the unit.

□ Mark the pump position on the saddle.

□ Loosen the motor mounting screws and slide the

motor toward the air compressor.

□ Remove the belt (2) and replace with a new one.

□ See Adjusting the Belt Tension before tightening

the motor mounting screws.

NOTE: Once the engine pulley has been moved from its
factory set location, the groves of the flywheel and pulley
must be aligned to within 1/16 in. (1.6mm) to prevent
excessive belt wear. Verify the alignment by performing the
following pulley and flywheel alignment.

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21 HUSKYTOOLS.com

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Maintenance (continued)

ADJUSTING THE BELT TENSION

□ Slide the motor into the original position, line

the motor up with the mark made earlier on the
saddle.

□ Tighten the two outside motor mounting screws

enough to hold the motor in place for checking
the pulley and flywheel alignment.

□ The belt should deflect 1/2 in. (12.7 mm) at

midway between the pulley and the flywheel
when a five-pound (2.26 kg.) weight is applied
at the midway point.

□ When proper belt tension is achieved, tighten all

four motor mounting screws. Torque to 15-20
ft-lbs. (20-27Nm).

Downward Force

Deflection

NOTE: Once the engine pulley has been moved from its
factory set location, the groves of the flywheel and pulley
must be aligned to within 1/16 in. (1.6mm) to prevent
excessive belt wear. Verify the alignment by performing the
following pulley and flywheel alignment.

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22

Maintenance (continued)

ALIGNING THE PULLEY AND FLYWHEEL

The air compressor flywheel and motor pulley must be
in-line (in the same plane) within 1/16 in. (1.6 mm) to
assure belt retention within the flywheel belt grooves.
To check the alignment, perform the following steps:

□ Turn the air compressor off, lock out the power

supply, and relieve all air pressure from the air
tank.

□ Remove the belt guard.

□ Place a straightedge (S) against the outside of

the flywheel (P) and the motor drive pulley (R).

□ Measure the distance between the edge of the

belt (Q) and the straightedge at points A1 and
A2 in the figure. The difference the between
measurements should be no more than 1/16 in.
(1.6 mm).

□ If the difference is greater than 1/16 in.

(1.6 mm), loosen the set screw holding the
motor drive pulley (R) to the shaft and adjust the
pulley position on the shaft until the A1 and A2
measurements are within 1/16 in. (1.6 mm) of
each other.

□ Tighten the motor drive pulley set screw.

□ Visually inspect the motor drive pulley to verify

that it is perpendicular to the drive motor shaft.
Points B1 and B2 of the figure should appear to
be equal. If they are not, loosen the setscrew
of the motor drive pulley and equalize B1 and
B2, using care not to disturb the belt alignment
previously performed.

□ Retighten the motor drive pulley setscrew.

Torque to 145–165 in. lbs.
(16.4–20.3 Nm).

□ Reinstall the belt guard.

A1= A2 (MEASURED)
B1= B2 (VISUAL)

A1 A2 B1 B2

P

Q

R

S

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23 HUSKYTOOLS.com

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Maintenance (continued)

Care and Cleaning

□ Drain the air tank of moisture after operation.

□ When not in use, store the compressor in a cool, dry place.

□ Disconnect the air hose and hang open ends down to allow any moisture to drain.

□ Protect the electrical cord and air hose from damage (such as being stepped on or run over). Wind them

loosely around the compressor handle.

TORQUING THE COMPRESSOR HEAD BOLTS

The air compressor pump head bolts should be kept
properly torqued. Check the torques of the head bolts
after the first five hours of operation.

□ Torque to 14-16 ft-lbs. (19–21.7 Nm).

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24

Problem Possible Cause Solution

The compressor does not
run.

□ There is a loss of power or

the motor is overheated.

□ Check for proper use of extension cord.

□ There is no power to the

unit.

□ Check to be sure the unit is plugged in.

□ The circuit breaker has

tripped or a fuse has blown
at the main power source.

□ Check the fuse/breaker.

□ The thermal overload

protector is actuated.

□ Turn the air compressor OFF ( O ).

□ Unplug air compressor and wait until

compressor cools down.

□ Plug the air compressor into an approved

outlet.

□ Depress the red reset button on the

motor.

□ Turn the air compressor to the AUTO

position (I).

□ The pressure switch is bad. □ Bring the compressor to a service center.

□ The compressor has reached

automatic shutoff pressure.

□ Release the air from the tank until the

compressor restarts automatically.

The motor hums while
running slowly, or it doesn’t
run at all.

□ There is low voltage from

the power source.

□ Call an electrician.

□ The wrong gauge wire or

length of extension cord is
being used.

□ Check for proper gauge wire and cord

length.

□ There is a shorted or open

motor wiring.

□ Bring the compressor to a service center.

□ There is a defective check

valve or unloader.

□ Bring the compressor to a service center.

The fuses blow or circuit
breaker trips repeatedly.

□ The incorrect fuse type is

being used.

□ Check for the proper fuse.

□ Use a time-delay fuse. Disconnect other

electrical appliances from the circuit
or operate the compressor on its own
branch circuit.

□ The wrong gauge wire or

length of extension cord
is used.

□ Check for the proper gauge wire and

cord length.

□ There is a defective check

valve or unloader.

□ Bring the compressor to a service center.

Troubleshooting

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25 HUSKYTOOLS.com

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Problem Possible Cause Solution

The thermal overload protector
cuts out repeatedly.

□ There is low voltage from

the power source.

□ Call an electrician.

□ There is a lack of proper

ventilation, or the room
temperature is too high.

□ Move the compressor to a well-ventilated

area.

□ The wrong gauge wire or

length of extension cord is
being used.

□ Check for proper gauge wire and cord

length.

The air receiver pressure
drops when the compressor
shuts off.

□ The connections (fittings,

tubing, etc.) are loose and
leaking.

□ Check all connections with a soap and

water solution and tighten.

□ The drain valve is loose

or open.

□ Tighten the drain valve.

□ The check valve is leaking. □ Bring the compressor to a service center.

There is excessive moisture
in the discharge air.

□ There is excessive water in

the air tank.

□ Drain the tank.

□ The compressor is working

under a high humidity
environment.

□ Move the compressor to an area of less

humidity; use an air line filter.

The compressor
continuously runs.

□ The pressure switch is

defective.

□ Bring the compressor to a service center.

□ An excessive amount of air

is being used.

□ Decrease the air usage; the compressor

is not large enough for the tool’s
requirement.

The air output is lower than
normal.

□ The inlet valves are broken. □ Bring the compressor to a service center.

□ The connections (fittings,

tubing, etc.) are loose and
leaking.

□ Tighten the connections.

Troubleshooting (continued)

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26

2

4

20

18

15

21

16

14

8

34

9

23

24

24

22

30

31

32

26

35

27

25

13

33

1

28

12

19

7

3

5

6

36

37

37

36

Torque to 55-100 in/lbs

24

Torque to 15-20 lb-ft/lbs

34

Torque to 35-65 in/lbs

32

NOTES:

Service Parts

C302H, AIR COMPRESSOR

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27 HUSKYTOOLS.com

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Item Number Description Part Number

1

Tank 30G Vp Black E106042

2

Valve Drain .25Npt E106644

3

Bumper Rubber Foot

E107323

4

.250-20 X 1.50 Screw

E106660

5

Wheel 10in Pneumatic

E107324

6

Bolt Shoulder .375-16 X 3.40

E107325

7

Nut .375-16 Hex

E106640

8

Grip Handle

E107326

9

Pump V-Twin

E108131

9B

Filter ASM

E107327

9C

Head

E108138

9D

Valve Plate Assy

E108160

9E

Gasket, Kit of 3

E108141

9F

Head Bolt, Kit of 4

E108144

9G

Flywheel

E108146

9H

Flywheel Bolt

E108148

9I

Flywheel Washer

E108150

9J

Flywheel Lock Washer

E108151

9K

Oil Sightglass

E108152

9L

Breather Plug

E108153

9M

Oil Plug

E108154

12

Pulley A-Sec 3.75OD X 5/8 in. Bore

E107328

13

Motor 115 Volt

E106044

13A

Start Capacitor

E106035

13B

Run Capacitor

E106036

13C

Start Capacitor Cover

E106037

13D

Run Capacitor Cover

E106038

14

Switch Press 4 Port 125-155 PSI

E108271

15

Valve Safety

E106004

16

Assy Cord Power

E107331

18

Regulator

E107332

19

Gauge .125 Backmount

E107333

20

Quick Connect

E107334

21

Gauge .25 Side Mount

E106005

Service Parts (continued)

C302H, AIR COMPRESSOR

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28

Service Parts (continued)

C302H, AIR COMPRESSOR

NOTE: Any part number field without a number listed is
not available. Descriptions are provided for reference only.

Item Number Description Part Number

22

Tube Outlet

E107335

23

Valve Check

E107336

24

Assy Nut Sleeve 3/8

E105998

25

Beltguard Inner

E106045

26

Beltguard Outer

E106046

27

Belt A-Section A44 E107337

28

Screw .250-20 X .75, Kit of 3

E108095

30

Tube Press Rel

E107338

31

Brass Insert

E107339

32

Assy Nut Sleeve 1/4

E107340

33

Cord Interconnect

E107341

34

Screw 5/16-18 X .75, Kit of 4

E109227

35

Screw #10-14 Plastite

E106646

-

Label Warning

E106631

- Label Hot Surface Label E106012

C302H_HUSKY_manual_5-15-ENG.indd 28 6/10/15 12:05 PM

Questions, problems, missing parts? Before returning to the store call

Husky Customer Service

8 a.m. - 6 p.m., EST, Monday-Friday

1-888-43-HUSKY

HUSKYTOOLS.COM

Retain this manual for future use.

Document Number: E109204

05/20/2015

C302H_HUSKY_manual_5-15-ENG.indd 29 6/10/15 12:05 PM