2.5 hp, 21 gallon, 125 pSI
CaSt Iron VertICal
aIr CompreSSor
model 67847
Set up and operatIng InStruCtIonS
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.
©
®
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.
Download from Www.Somanuals.com. All Manuals Search And Download.
not avoided, could result in
minor or moderate injury.
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.
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
Important SaFetY
InFormatIon
In this manual, on the labeling,
and all other information
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
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
instructions for future reference.
1. Work area safety
a.keep work area clean and well
lit. Cluttered or dark areas invite
accidents.
follow this symbol to avoid
possible injury or death.
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.
danger indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
c.keep children and bystanders
away from an operating
compressor.
WarnIng
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
2. electrical safety
a.Compressor plugs must match
the outlet. never modify the
CautIon, used
with the safety
alert symbol, indicates a
hazardous situation which, if
plug in any way. do not use any
adapter plugs with a grounded
compressor. Standard plugs and
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 3
Download from Www.Somanuals.com. All Manuals Search And Download.
matching outlets will reduce risk of
electric shock.
NIOSH-approved for the specific
hazards in the work area.
b.do not expose the compressor
to rain or wet conditions. Water
entering a compressor will increase
the risk of electric shock.
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.
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.
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
3. personal safety
compressor accidentally.
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.
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
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 off-
position before connecting to
power source or moving the
compressor.
accidents are caused by a poorly
maintained 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
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.
Page 4
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
5. Service
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.
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.
10. Do not remove the Pressure Switch
(54) cover or adjust the internal
components.
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.
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.
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.
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.
4. To reduce the risk of electric shock,
do not expose to rain. Store indoors.
5. Wear ANSI-approved safety goggles
during use.
16. USE OF AN EXTENSION CORD
IS NOT RECOMMENDED. If you
choose to use an extension cord, use
the following guidelines:
6. Do not use to supply breathing air.
7. Do not use the air hose to move the
compressor.
reCommended mInImum WIre
8. Drain Tank daily and after use.
Internal rust causes tank failure and
explosion.
gauge For eXtenSIon CordS
(120 Volt)
eXtenSIon Cord
nameplate
ampereS
(at full load)
length
9. add correct amount of compressor
oil before first use and every
25’
50’ 100’ 150’
use. operating with the incorrect
amount of oil causes permanent
damage and voids warranty. to
prevent damage, do not use with
0 – 6
18
16
16
14
6.1 – 10
18
16
14
12
table a
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 5
Download from Www.Somanuals.com. All Manuals Search And Download.
cause pacemaker interference or
pacemaker failure.
reCommended mInImum WIre
gauge For eXtenSIon CordS
(120 Volt)
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.)
eXtenSIon Cord
nameplate
ampereS
(at full load)
length
25’
50’ 100’ 150’
10.1 – 12
12.1 – 16
16
16
14
12
14
12
do not use.
table a
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.
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.
SaVe theSe
InStruCtIonS.
17. Industrial applications must follow
OSHA guidelines.
groundIng
18. Maintain labels and nameplates
on the compressor. These carry
important safety information. If
unreadable or missing, contact
Harbor Freight Tools for a
to preVent
eleCtrIC ShoCk
and death From
InCorreCt groundIng
WIre ConneCtIon:
Check with a qualified
replacement.
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
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
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
Download from Www.Somanuals.com. All Manuals Search And Download.
fit the outlet, have a proper
outlet installed by a qualified
electrician.
5. Use only 3-wire extension cords that
have 3-prong grounding plugs and
3-pole receptacles that accept the
compressor’s plug.
110-120 V~ grounded
Compressors: Compressors with
three prong plugs
6. Repair or replace damaged or worn
cord immediately.
1. In the event of a malfunction or
breakdown, grounding provides a
path of least resistance for electric
current to reduce the risk of electric
shock. This compressor is equipped
with an electric cord having an
equipment-grounding conductor and
a grounding plug. The plug must be
plugged into a matching outlet that
is properly installed and grounded in
accordance with all local codes and
ordinances.
grounding
pin
120 V~ 3-prong plug and outlet
(for up to 120 V~ and up to 15.5 a)
7. This compressor is intended for use
on a circuit that has an outlet that
looks like the one illustrated above
in 120 V~ 3-prong plug and outlet.
The compressor has a grounding
plug that looks like the plug illustrated
above in 120 V~ 3-prong plug and
outlet.
2. Do not modify the plug provided –
if it will not fit the outlet, have the
proper outlet installed by a qualified
electrician.
3. Improper connection of the
equipment-grounding conductor can
result in a risk of electric shock. The
conductor with insulation having
an outer surface that is green with
or without yellow stripes is the
8. The outlet must be properly installed
and grounded in accordance with all
codes and ordinances.
9. Do not use an adapter to connect this
compressor to a different outlet.
equipment-grounding conductor. If
repair or replacement of the electric
cord or plug is necessary, do not
connect the equipment-grounding
conductor to a live terminal.
Symbology
Canadian Standards Association
4. Check with a qualified electrician or
service personnel if the grounding
instructions are not completely
understood, or if in doubt as to
whether the compressor is properly
grounded.
Volts Alternating Current
V~
a
Amperes
No Load Revolutions per Minute
(RPM)
n xxxx/min.
0
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 7
Download from Www.Somanuals.com. All Manuals Search And Download.
to preVent
SerIouS InjurY
SpeCIFICatIonS
From aCCIdental
operatIon:
Electrical
Requirements
120 V~ / 60 Hz / 2.5 HP
14A (Dedicated circuit
recommended)
turn the power lever “oFF”
and unplug the air
Compressor from its electrical
outlet before assembling or
making any adjustments to
the compressor.
Amperage
Motor Speed
Phase
3400 RPM
Single
Air Outlet Size
1/4”-18 NPT
Auto Shut-Off @ 125 PSI
Restart @ 95 PSI
Air Pressure
note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
Air Tank Capacity
Air Flow Capacity
Oil Capacity
21 Gallons
4.7 SCFM @ 90 PSI
5.8 SCFM @ 40 PSI
5.6 oz. (165ml)
SAE 30W non-detergent
Air Compressor Oil
(Sold separately)
(SKU 95048)
Functions
ON/OFF Power Lever
Oil Type
(On Pressure Switch (54))
Pressure
Decibel Level
90 dB @ 1m
Oil Sight
Glass
(33)
Regulator
(74)
Safety
Valve
( 7 3 )
unpaCkIng
Tank Pressure
Gauge (53)
Quick
Coupler
(76) - For
attaching
in-line
When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353 as soon
as possible.
Output
Pressure
Gauge (77)
shutoff
valve, air
hose and
tool
InStruCtIonS For
puttIng Into uSe
Drain Valve (66)
read the entIre Important
SaFetY InFormatIon
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
(Controls)
Pressure
Switch (54)
ON/OFF Pressure
oFF
Power
Lever
Regulator
(74)
on
Quick
Coupler
(76)
Safety
Valve
(73)
Tank Pressure Output Pressure
Gauge (53) Gauge (77)
Figure 1
Page 8
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
Work piece and Work area Set up
1. Designate a work area that is clean
and well-lit. The work area must not
allow access by children or pets to
prevent injury.
Handle (72)
2. Locate the Compressor on a flat
level surface to ensure proper pump
lubrication and to prevent damage to
the unit. Keep at least 12” of space
around the unit to allow air circulation.
3. Route the power cord from the
compressor to the grounded wall
outlet, along a safe path without
creating a tripping hazard or exposing
the power cord to possible damage.
Bolts (71)
Tank (70)
Figure 3
2. Slide the Handle (72) into the two
slots on the top of the Tank (70) and
secure in place with four Bolts (71).
assembly/mounting
Tank (70)
Cylinder Head (7)
Hex Nut (65)
Nut (24)
Foot Pad (67)
Air Filter
(6)
Wheel (63)
Washer (68)
Sleeve (64a)
Washer (64b)
Screw (69)
Bolt (64)
Figure 2
Figure 4
1. Attach the Wheels (63) to the Tank
(70), using the Bolts (64), Washers
(64b), Sleeves (64a), and Hex Nuts
(65). Attach the Foot Pads (67) to
the bottom of the Tank (70) using the
Screws (69) and Washers (68).
3. Thread the Air Filter (6) onto the side
of the Cylinder Head (7).
4. Break in the new Air Compressor as
follows:
a. Make sure the Power Lever is OFF
and the unit is unplugged. Insert a
male coupler (sold separately) into
the female Quick Coupler (76) and
fully open all regulators and valves.
b. Plug in the Power Cord.
SKU 67847
For technical questions, please call 1-800-444-3353. Page 9
Download from Www.Somanuals.com. All Manuals Search And Download.
c. Turn the Power Lever ON.
Checking the oil
d. Let the unit run for 30 minutes. Air
will expel freely through the Coupler.
1. Check the oil level before operation.
Fill the Pump Crankcase (39) with
premium quality SAE 30-weight, non-
detergent air compressor oil.
e. Turn the Power Lever OFF.
f. Unplug the Power Cord and remove
the male coupler.
Important: running the air
Compressor with the incorrect
amount of oil will cause damage
to the equipment and void the
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.
Coupler
plug
Coupler
plug
tool
Quick
Coupler
air hose
on reel
Shut
off
Valve
oiler
Filter
Crankcase Cover (31) Oil Sight Glass (33)
air
Compressor
regulator with
OIL LEVEL
pressure gauge
Sample air line Setup
oVerFIll
Full
5. Connect a regulator valve, an in-line
shut off valve and a 1/4” NPT air hose
(all sold separately) to the Quick
Coupler (76). The air hose must be
long enough to reach the work area
with enough extra length to allow free
movement while working.
loW
Figure 5
Tank (70)
2. The oil level should be at the center
of the “full” level on the oil level sight
glass, as shown in Figure 5. Add
oil as needed to maintain this level.
Do not let the oil level go below the
center dot (LOW as shown above)
and do not overfill the oil so that it is
above the center dot (OVERFILL as
shown above) on the sight glass.
note: an in-line shutoff ball valve is an
important safety device because it
controls the air supply even if the
air hose is ruptured. the shutoff
valve should be a ball valve
because it can be closed quickly.
3. To add oil:
6. Depending on the tool which you will
be using with this compressor, you
may need to incorporate additional
components, such as an in-line oiler,
a filter, or a dryer (all sold separately).
Consult your air tool’s manual for
needed accessories.
a. Remove the Oil Plug (37).
b. Using a funnel to avoid spills, pour
enough oil into the Pump Crankcase
(39) to reach the “full” level in the Oil
Sight Glass (33).
Page 10
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
c. Replace the Oil Plug.
1. Close the Drain Valve (66) by turning
it clockwise.
Cold Weather operation
2. Make sure all nuts and bolts are tight.
Premium quality 30-weight, non-
detergent air compressor oil (sold
separately) is recommended for
use with this compressor. Start
compressor in heated area if outdoor
temperatures drop below 32° F. If
this is not practical, drain out the old
pump oil and use SAE 10W Non-
detergent Air Compressor Oil in the
pump crankcase instead whenever
the compressor’s temperature will
fall below 40°. Do not use multi-
viscosity oil (such as 10W-30), they
leave carbon deposits on pump
components and lead to accelerated
failure. Heavy operation may require
heavier viscosity oil.
3. Check for oil leaks and check the oil
level (See Checking the Oil).
4. Close the in-line Shutoff Valve
between the compressor and the air
hose.
5. Make sure the air tool’s throttle or
switch is in the off position.
6. Connect the air tool to the air hose.
7. Plug the Air Compressor Power Cord
into a grounded 120 V electrical
outlet.
8. Open the in-line Shutoff Valve.
9. Turn the Power Lever ON.
4. If uncertain which oil to use for this
compressor, please call Harbor
Freight Tools customer service at
1-800-444-3353 for assistance.
10. Allow the Air Compressor to build up
pressure until it cycles off.
note: At the beginning of the day’s first
use of the Air Compressor, check for
air leaks by applying soapy water to
connections while the Air Compressor
is pumping and after pressure
5. Change the compressor oil after
the first hour of use to remove any
debris.
cut-out. Look for air bubbles. If air
bubbles are present at connections,
tighten connections. Do not use the
air compressor unless all connections
are air tight, the extra air leaking out
will cause the compressor to operate
too often, increasing wear on the
compressor.
WarnIng! To prevent serious injury from
burns: Do not add or change the oil
while the compressor is in operation.
Allow the compressor to cool before
replacing oil.
general operatIng
InStruCtIonS
note: As long as the Power Lever is ON,
the operation of the Air Compressor
is automatic, controlled by an internal
pressure switch. The Compressor will
turn on automatically when the air
pressure drops to 95 PSI as indicated
on the Tank Pressure Gauge (53),
read the entIre Important
SaFetY InFormatIon
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 11
Download from Www.Somanuals.com. All Manuals Search And Download.
and will turn off automatically when
the air pressure reaches 125 PSI
as indicated. Important: The
internal pressure switch is not user
adjustable, do not make changes
to the air pressure settings of the
internal pressure switch. Any
change to the automatic pressure
levels may cause excess pressure
to accumulate, causing a hazardous
situation.
emergency depressurization
If it is necessary to quickly
depressurize the Compressor, turn
the Power Lever OFF. Then, pull on
the ring on the Safety Valve (73) to
quickly release stored air pressure.
automatic Shut off System
11. Adjust the Air Compressor’s Pressure
Regulator (74) so that the air output
is enough to properly power the tool,
but the output will not exceed the
tool’s maximum air pressure at any
time. Turn the knob clockwise to
increase the pressure and counter-
clockwise to decrease pressure.
Adjust the pressure gradually, while
checking the air output gauge to set
the pressure.
Reset
Button
12. Use the air tool as needed.
13. After the job is complete, turn the
Power Lever OFF.
Figure 6
1. If the Compressor automatically
shuts off, or hums then shuts off:
14. Unplug the Air Compressor.
15. Close the in-line Shutoff Valve.
a. Shut off all tools.
16. Bleed air from the tool then
disconnect the tool.
b. Wait until the Compressor cools
down (about 10 minutes);
c. If the unit does not start up again
on it’s own, press the reset
17. Turn the Drain Valve (66), at the
bottom of the Tank, counterclockwise
to release any built-up moisture and
the internal tank pressure. Close the
valve after moisture has drained out.
Do not remove the Drain Valve.
button to start the compressor;
d. Resume operation.
2. Possible causes of repeated
automatic shut off of the compressor
are:
18. Clean, then store the Air Compressor
indoors.
a. Using an extension cord that is too
long or narrow;
Page 12
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
b. An air leak or open hose causing the
compressor to cycle too often and
build up heat.
maIntenanCe and
SerVICIng
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
3. Correct any issues before further use
to avoid damage to the compressor.
to preVent
SerIouS InjurY
From aCCIdental
operatIon:
turn the power lever “oFF”
and unplug the Compressor
from its electrical outlet
before performing any
inspection, maintenance, or
cleaning procedures.
to preVent SerIouS
InjurY From tool
FaIlure:
do not use damaged
equipment. If abnormal noise
or vibration occurs, have the
problem corrected before
further use.
Cleaning, maintenance, and
lubrication
1. beFore eaCh uSe, inspect
the general condition of the Air
Compressor. Check for loose
hardware, misalignment or binding
of moving parts, cracked or broken
parts, damaged electrical wiring, and
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 13
Download from Www.Somanuals.com. All Manuals Search And Download.
any other condition that may affect its monthly:
safe operation.
Inspect Safety Valve (73).
2. aFter uSe, wipe external surfaces
every 6 months or 100 operation
hours:
of the tool with a clean cloth.
3.
WarnIng! If the supply cord of
this power tool is damaged, it must
be replaced only by a qualified
service technician.
***
Replace Pump oil.
oil maintenance
Check oil periodically for clarity.
Replace oil if it appears milky or if
debris is present, or every 6 months,
or 100 hours of runtime, whichever
comes first. In harsh environments
such as high heat or high humidity,
you will need to replace the oil more
frequently.
maintenance Schedule
Following are general guidelines
for maintenance checks of the Air
Compressor.
note: The environment in which the
compressor is used, and the
frequency of use can affect how
often you will need to check the
Air Compressor components and
perform maintenance procedures.
WarnIng: Risk of personal injury hazard.
Allow Air Compressor to cool before
changing the oil.
to drain the oil from the pump
Crankcase (39):
daily:
a. Check oil level.
b. Check for oil leaks.
a. Place a container under the Drain
Plug (35).
c. Make sure all nuts and bolts are
tight.
b. Remove the Oil Plug (37) to allow air
flow into the Pump.
d. Drain moisture from air tank.
c. Remove the Drain Plug, allowing the
oil to drain into the container.
e. Check for abnormal noise or
vibration.
*
f. Check for air leaks.
d. When the oil is completely drained
from the Pump, replace the Drain
Plug.
g. Wipe off any oil or dirt from the
**
compressor.
e. Fill the Pump with new compressor
oil to the FULL level on the Oil Sight
Glass (33).
Weekly:
a. Inspect Air Filter (6).
b. Inspect Oil Plug (37).
f. Replace and tighten the Oil Plug.
* To check for air leaks, apply soapy
water to joints while the Air Compressor is
pressurized. Look for air bubbles.
** To clean the compressor surface, wipe
with a damp cloth, using a mild detergent
or mild solvent.
g. Discard the old oil according to local,
state and federal regulations.
*** Use Air Compressor Oil only (sold
separately - SKU 95048).
Page 14
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
draining moisture from the tank
air Filter maintenance
The Drain Valve (66) is located under
the Tank (70). It must be accessed
daily to release all trapped air and
moisture from the Tank. This will
eliminate condensation which can
cause tank corrosion.
Check the Air Filter weekly to see if
it needs replacement. If working in
dirty environments, you may need
to replace the filter more often. To
replace the Air Filter:
a. Remove the Cover (1).
b. Remove the Air Filter (6).
c. Replace with a new Air Filter.
d. Replace the Cover.
To empty the air and condensation:
a. Make sure the Power Lever of the
compressor is off.
b. Place a collection pan under the
Drain Valve.
c. Open the Drain Valve.
d. When all the pressure is released,
close the Drain Valve.
Counterclockwise
drain Valve open
Clockwise
drain Valve Closed
Inside Compressor
Compressor Wall
Knob
Figure 7
to open the drain Valve, turn
the knob on the bottom of the
Compressor counterclockwise.
to close the drain Valve, turn
the knob on the bottom of the
compressor clockwise until you feel
tension and the knob is down as far
as it can go.
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 15
Download from Www.Somanuals.com. All Manuals Search And Download.
troubleshooting
problem
Compressor does
not start or restart
possible Causes
1. Incorrect power supply.
likely Solutions
1. Check that circuit matches compressor requirements.
2. No power at outlet.
2. Reset circuit breaker, or have outlet serviced by a
qualified technician.
3. Power cord not plugged in
properly.
3. Check that cord is plugged in securely.
4. Thermal overload switch
tripped or Compressor circuit
breaker tripped.
4. Turn off tool. Turn off Compressor and wait for it to cool
down. Press Reset Button. Resume operation.
5. Building power supply circuit
tripped or blown fuse.
5. Reset circuit or replace fuse. Check for low voltage
conditions. It may be necessary to disconnect other
electrical appliances from the circuit or move the
compressor to its own circuit.
6. Tank already pressurized.
6. Fully bleed tank of air.
7. Cord wire size is too small or
cord is too long to properly
power compressor.
7. Use larger diameter or shorter extension cord or
eliminate extension cord. See Recommended Wire
Gauge for Extension Cords in Safety section.
8. Compressor needs service.
1. Cold weather
8. Have unit inspected by a qualified technician.
1. Turn off tool. Press the Reset Button. Start
Compressor in a heated area if temperatures drop
below 32ºF, or use SAE 10W non-detergent air
compressor oil instead of 30W.
Compressor shuts
off automatically
before reaching full
pressure (Circuit
breaker trips)
2. Extension cord usage.
1. Cold weather.
2. Turn off tool. Press the Reset Button. Use without
extension cord.
1. Press the Reset Button, then, start Compressor in a
heated area if temperatures drop below 32ºF, or use
SAE 10W non-detergent air compressor oil instead of
30W.
Compressor
hums, then shuts
off automatically
before reaching full
pressure (Circuit
breaker trips)
2. Extension cord usage.
3. Engine too hot.
2. Press the Reset Button. Use without extension cord.
3. Wait for engine to cool and unit will start automatically.
1. Check that circuit matches compressor requirements.
Compressor builds 1. Incorrect power supply.
pressure too slowly
2. Crankcase overfilled with oil or 2. Drain oil and refill to proper level with recommended
oil too thick.
oil.
3. Working environment too cold. 3. Move unit to a warmer location. Check that
recommended oil is in crankcase.
4. Safety valve needs service.
4. Listen for air leaking from valve. If leaking replace with
identical valve with same rating.
5. Loose fittings.
5. Reduce air pressure, then check all fittings with a soap
solution for air leaks and tighten as needed. Do not
overtighten.
Compressor not
building enough air
pressure
1. Filters need cleaning/replacing. 1. Check inlet and outlet filters. Clean and/or replace as
needed.
2. Crankcase oil too thick.
2. Drain oil and refill to proper level with recommended
oil.
3. Check Valve needs service.
3. Clean or replace, as needed.
4. Compressor not large enough 4. Check if accessory SCFM is met by Compressor. If
for job.
Compressor cannot supply enough air flow (SCFM),
you need a larger Compressor.
5. Loose fittings.
5. Reduce air pressure, then check all fittings with a soap
solution for air leaks and tighten as needed. Do not
overtighten.
6. Hose or hose connections not 6. Replace with larger hose and/or hose connections.
adequate.
7. High altitude reducing air
output.
7. You may need a larger compressor if you are situated
in a high altitude location.
Page 16
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
problem
High Oil
possible Causes
1. Crankcase oil too thin.
likely Solutions
1. Drain oil and refill to proper level with recommended
Consumption
oil.
2. Unit not on level surface.
3. Crancase vents clogged.
2. Reposition unit on a level surface.
3. Clean Crankcase vents.
Overheating
1. Filters need cleaning/replacing. 1. Check inlet and outlet filters. Clean and/or replace as
needed.
2. Crankcase oil too thin or
incorrect type.
2. Drain oil and refill to proper level with recommended
oil.
3. Crankcase oil level too low.
3. Add oil to proper level, check for leaks.
4. Unusually dusty environment. 4. Clean and/or replace filters more often or move unit to
cleaner environment.
5. Cord is too small of a gauge or 5. Increase cord size or use shorter length extension
too long to handle compressor.
cord, or eliminate extension cord. See Recommended
Wire Gauge for Extension Cords in Safety section.
6. Unit not on level surface.
6. Reposition unit on a level surface.
Compressor
starts and stops
excessively
1. Compressor not large enough 1. Check if accessory SCFM is met by Compressor. If
for job.
Compressor doesn’t reach accessory SCFM, you need
a larger Compressor.
2. Loose fittings.
2. Reduce air pressure, then check all fittings with a soap
solution for air leaks and tighten as needed. Do not
overtighten.
Excessive noise
1. Crankcase overfilled with oil
or oil is incorrect thickness or
type.
1. Drain oil and refill to proper level with recommended
oil.
2. Crankcase oil level too low.
2. Add oil to proper level, check for leaks.
3. Loose or damaged belt guard. 3. Replace belt guard.
4. Loose fittings.
4. Reduce air pressure, then check all fittings with a soap
solution for air leaks and tighten as needed. Do not
overtighten.
5. Unit not on level surface.
Too much moisture in air.
5. Reposition unit on a level surface.
Install inline air filter/dryer, and/or relocate to less humid
environment.
Moisture in
discharge air
Oil in discharge air 1. Crankcase oil too thin or
1. Drain oil and refill to proper level with recommended
crankcase overfilled with oil.
oil.
2. Crankcase vents clogged.
Safety Valve “pops” Safety valve needs service.
Air leaks from pump Loose fittings.
or fittings
2. Clean Crankcase vents.
Pull on test ring of safety valve. If it still pops, replace.
Reduce air pressure, then check all fittings with a soap
solution for air leaks and tighten as needed. Do not
overtighten.
Air leaks from tank Defective or rusted tank.
Have tank replaced by a qualified technician.
Follow all safety precautions whenever diagnosing or servicing the
compressor. disconnect power supply before service.
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 17
Download from Www.Somanuals.com. All Manuals Search And Download.
partS lISt
part
description
Qty
part
description
Qty
1
1
1
1
1
1
1
1
1
1
4
4
4
1
1
1
1
1
1
1
2
2
1
1
2
2
2
2
2
1
2
2
2
1
4
1
1
1
1
1
1
1
1
2
3
4
5
6
7
8
9
Cover
Elbow
1
42 Manual Overload Protector
43 Oil Seal
1
1
8
4
1
1
1
2
1
2
1
1
2
3
1
1
2
1
2
1
1
5
3
1
2
1
1
1
1
1
1
1
Start Valve
44 Bearing
45 Rotator
46 Bearing
47 Stator
48 Automatic Thermal Protector
49 End Cover
50 Fan
Spring Washer M6
Screw M6 x 50
Air Filter
Cylinder Head
Head Gasket
Valve Plate
10 Metal Gasket
11 Valve
12 Valve Plate Gasket
13 Cylinder
14 Bolt M8 x 30
15 Spring Washer M8
16 Cylinder Gasket
17 Pin Ø 13 x 44
18 Compression Ring
19 Oil Ring
51 Circlip
51a Plain Washer 5
51b Spring Washer 5
51c Bolt M5 x 130
52 Connector
53 Tank Pressure Gauge
54 Pressure Switch
55 Unloader Tube
56 Nut
57 Ferrule
58 Check Valve
59 Ferrule
20 Wrist Pin Retainer
21 Piston
22 Connecting Rod
23 Screw M6 x 20
24 Hex Nut M6
25 Crank Shaft
26 O-Ring
60 Nut
61 Exhaust Tube
62 Cooling Fin
63 Wheel
64 Bolt M12 x 55
64a Sleeve
64b Washer 12
65 Hex Nut M12
66 Drain Valve
67 Foot Pad
68 Washer
69 Screw M6 x 25
70 Tank
71 Bolt M6 x 10
72 Handle
73 Safety Valve
74 Pressure Regulator
75 Motor Cord
76 Quick Coupler
77 Output Pressure Gauge
78 Plug
26a Zip Tie
27 Capacitor
28 Screw M8 x 20
29 Capacitor Bracket
30 Hex Nut M8
31 Crank Case Cover
32 O-Ring
33 Oil Sight Glass
34 O-Ring
35 Drain Plug M5 x 10
36 O-Ring
1
1
1
1
1
1
1
10
10
37 Oil Plug
38 Crankcase Cover Gasket
39 Pump Crankcase
40 Washer M5
41 Screw M5 x 16
record product’s Serial number here:
note: If product has no serial number, record month and year of purchase instead.
note: Some parts are listed and shown for illustration purposes only, and are not
available individually as replacement parts.
Page 18
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
aSSemblY dIagram
b
a
a
b
SKU 67847
For technical questions, please call 1-800-444-3353.
Page 19
Download from Www.Somanuals.com. All Manuals Search And Download.
lImIted 1 Year / 90 daY WarrantY
Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that for a period of
one year from date of purchase that the tank is free of defects in materials and workmanship
(90 days if used by a professional contractor or if used as rental equipment). Harbor
Freight Tools also warrants to the original purchaser, for a period of ninety days from date
of purchase, that all other parts and components of the product are free from defects
in materials and workmanship. This warranty does not apply to damage due directly
or indirectly to misuse, abuse, negligence or accidents, repairs or alterations outside
our facilities, normal wear and tear, or to lack of maintenance. We shall in no event be
liable for death, injuries to persons or property, or for incidental, contingent, special or
consequential damages arising from the use of our product. Some states do not allow
the exclusion or limitation of incidental or consequential damages, so the above limitation
of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the complaint
must accompany the merchandise. If our inspection verifies the defect, we will either
repair or replace the product at our election or we may elect to refund the purchase price
if we cannot readily and quickly provide you with a replacement. We will return repaired
products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning
the product.
This warranty gives you specific legal rights and you may also have other rights which
vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
pleaSe read the FolloWIng CareFullY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT
HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR
DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE
UNDERTAKEN BY CERTIFIEDAND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER
ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL
PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION
OF REPLACEMENT PARTS THERETO.
Page 20
For technical questions, please call 1-800-444-3353.
SKU 67847
Download from Www.Somanuals.com. All Manuals Search And Download.
|