Harbor Freight Tools 67698 Air Compressor Pump User manual

Harbor Freight Tools
Brand
Harbor Freight Tools
Model
67698 Air Compressor Pump
Category
Air compressors
Type
User manual

This manual is also suitable for

145 PSI 5 HP TWIN CYLINDER
AIR COMPRESSOR PUMP
Model
67698
SET UP AND OPERATING INSTRUCTIONS
WARNING
To prevent serious injury and
death from improper installation:













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.

©

®

               

         

For technical questions or replacement parts, please call 1-800-444-3353.
Manual Revised 10h
 For technical questions, please call 1-800-444-3353. SKU 67698
CONTENTS
IMPORTANT SAFETY
INFORMATION .................................3
GENERAL COMPRESSOR SAFETY
WARNINGS ........................................... 3
COMPRESSOR PUMP SAFETY
WARNINGS ........................................... 4
AIR COMPRESSOR SAFETY
WARNINGS ........................................... 5
GROUNDING ......................................6
SYMBOLOGY .......................................... 7
SPECIFICATIONS ...............................7
UNPACKING .......................................7
INSTRUCTIONS FOR PUTTING
INTO USE .........................................8
COMPONENTS ....................................... 8
ASSEMBLY.............................................. 8
INSTALLATION  9
CHECKING THE OIL ............................. 10
MAINTENANCE AND SERVICING ...12
CLEANING, MAINTENANCE, AND
LUBRICATION .................................... 12
MAINTENANCE SCHEDULE ................ 12
OIL MAINTENANCE .............................. 12
AIR FILTER MAINTENANCE ................ 13
TROUBLESHOOTING ........................... 13
PARTS LIST ......................................14
ASSEMBLY DIAGRAM .....................15
LIMITED 90 DAY WARRANTY .........16
REV 10h
For technical questions, please call 1-800-444-3353.SKU 67698
SAVE THIS MANUAL









IMPORTANT SAFETY
INFORMATION
In this manual, on the labeling, and
all other information provided with
this product:
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that follow
this symbol to avoid possible
injury or death.
DANGER indicates a
hazardous situation
which, if not avoided, will result
in death or serious injury.
WARNING indicates a
hazardous situation
which, if not avoided, could
result in death or serious injury.
CAUTION, used with
the safety alert
symbol, indicates a hazardous
situation which, if not avoided,
could result in minor or moderate
injury.
NOTICE is used to
address practices not
related to personal injury.
CAUTION, without the
safety alert symbol, is
used to address practices not
related to personal injury.
General Compressor Safety
Warnings
WARNING Read all safety warnings
and instructions. Failure to follow
the warnings and instructions may
result in electric shock, re and/or
serious injury.
Save all warnings and instructions
for future reference.
Work area safety
Keep work area clean and well lit.

Do not operate the Compressor 
Pump in explosive atmospheres,
such as in the presence of ammable
liquids, gases or dust.


Keep children and bystanders away 
from an operating compressor pump.
Personal safety
Stay alert, watch what you are 
doing and use common sense when
operating this compressor pump. Do
not use this compressor pump while
you are tired or under the inuence
of drugs, alcohol or medication.



Use personal protective equipment. 
Always wear ANSI-approved eye
protection during setup and use.

 For technical questions, please call 1-800-444-3353. SKU 67698



Compressor Pump use and care
Disconnect the plug of the 
compressor from the power source
before making any adjustments,
changing accessories, or storing the
compressor pump.


Store an idle compressor pump 
out of the reach of children and
do not allow persons unfamiliar
with the compressor pump or
these instructions to operate it.


Maintain the compressor pump. 
Keep the compressor pump clean
for better and safer performance.
Follow instructions for lubricating
and changing accessories. Keep
the outside surfaces 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.

Use the compressor pump in 
accordance with these instructions,
taking into account the working
conditions and the work to be
performed.



Service
Have your compressor pump 
serviced by a qualied repair person
using only identical replacement
parts.

Compressor Pump
Safety Warnings




Before rst and every use, verify 
Pump has sufcient oil.



Misalignment between Motor and 
Pump can damage the Belt Wheel.



Use proper size motor and motor 
pulley. 




Install motor, pulley belt and pulley 
belt cover securely.




Be sure all equipment is rated to the 
appropriate capacity of this pump.




Do not direct the air outlet at any 
person or animal.
For technical questions, please call 1-800-444-3353.SKU 67698
Use Safety Guard for Pulleys. 





Avoid burns.  



Air Compressor Safety Warnings
Risk of re or explosion - do not 
spray ammable liquid in a conned
area or towards a hot surface. Spray
area must be well-ventilated. Do not
smoke while spraying or spray where
spark or ame is present. Arcing
parts - keep compressor at least 20
feet away from explosive vapors,
such as when spraying with a spray
gun.
Risk of bursting - do not adjust 
regulator higher than marked
maximum pressure of attachment.
Risk of injury - do not direct air 
stream at people or animals.
Do not use to supply breathing air.
Do not leave compressor unattended 
for an extended period while plugged
in. Unplug compressor after working.
Keep compressor well-ventilated. Do 
not cover compressor during use.





























RECOMMENDED MINIMUM WIRE
GAUGE FOR EXTENSION CORDS
(120 VOLT)
NAMEPLATE
AMPERES
(at full load)
EXTENSION CORD
LENGTH
25’ 50’ 100’ 150’
0 – 6 18 16 16 
 18 16 Do not use.
 16 16 Do not use.
  12 Do not use.
TABLE A







 For technical questions, please call 1-800-444-3353. SKU 67698





























et seq.




















SAVE THESE
INSTRUCTIONS.
GROUNDING
TO PREVENT
ELECTRIC SHOCK
AND DEATH FROM INCORRECT
GROUNDING WIRE
CONNECTION:
Check with a qualied electrician
if you are in doubt as to whether
the outlet is properly grounded.
Do not modify the power cord
plug provided with the
compressor. Never remove the
grounding prong from the plug.
Do not use the compressor if the
power cord or plug is damaged.
If damaged, have it repaired by a
service facility before use. If the
plug will not t the outlet, have a
proper outlet installed by a
qualied electrician.
For technical questions, please call 1-800-444-3353.SKU 67698
Symbology
PSI


CFM

SCFM


NPT

NPS




V~

A



Mounting Hole Pattern
SPECIFICATIONS



 
 
 1050 RPM
 
















 
 







 





UNPACKING





REV 10h
 For technical questions, please call 1-800-444-3353. SKU 67698
INSTRUCTIONS FOR PUTTING
INTO USE
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.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn off and disable the motor
before assembling or making any
adjustments to the compressor
pump.
TO PREVENT
SERIOUS INJURY
AND DEATH FROM IMPROPER
INSTALLATION:
ONLY a qualied engineer with
appropriate certications may
attempt designing a new
compressor to ensure that all
required safety and control
elements are in place and will
work together properly and
safely. This compressor pump
is intended ONLY as a
replacement for a similarly
rated pump on an existing
compressor that includes all
other needed components.
Constructing a new compressor
using this pump is not covered
by this manual.
Note: 



Components
Figure 1









Assembly
Figure 2








 






For technical questions, please call 1-800-444-3353.SKU 67698






WARNING! Do not force or hammer the
Pump Pulley onto the Crankshaft.





Note: The Bolt is a left-hand thread. To
fasten, turn Bolt counterclockwise.
Installation
Note: Depending on your level of
expertise, you may wish to have a
qualied technician perform this
installation.
CAUTION:













Note:



Calculation for Motor Pulley:




(14.5” Pump Pulley Dia. x 655 Pump RPM)
Motor RPM
9,497.5
=
Motor
Pulley
Dia.














1725
=





=

 


Note:


CAUTION: Misalignment between the
Motor and the Pump can cause
damage to both the motor and the
compressor pump. 


 For technical questions, please call 1-800-444-3353. SKU 67698










































WARNING! 


Checking the Oil
Check the oil level before operation.
Fill the Pump Crankcase with SAE 30W
non-detergent air compressor oil
(sold separately).
IMPORTANT: Running the Air Compressor
Pump with the incorrect amount of oil
will cause damage to the equipment
and void the warranty. To prevent
damage, do not use with overlled
or low oil. Slowly ll to full line, wait
2 minutes and ll back up to full line.
The Compressor Pump has small
passages that will ll slowly.


OVERFILL
LOW
FULL
Figure 3










REV 10h
For technical questions, please call 1-800-444-3353.SKU 67698






Cold Weather Operation



















WARNING!



After lling with oil, follow your air
compressor operation instructions
and safety warnings.
Change the compressor oil after the
rst hour of use to remove any debris.
 For technical questions, please call 1-800-444-3353. SKU 67698
MAINTENANCE AND
SERVICING
Procedures not specically
explained in this manual must
be performed only by a qualied
technician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn off and disable the motor
before performing any
inspection, maintenance, or
cleaning procedures.
TO PREVENT SERIOUS INJURY
FROM COMPRESSOR FAILURE:
Do not use damaged equipment.
If abnormal noise or vibration
occurs, have the problem
corrected before further use.
Note:



Cleaning, Maintenance, and
Lubrication
BEFORE EACH USE, 






AFTER USE, 

Maintenance Schedule


Note:



Daily:





Weekly:


Monthly:

Every 6 months or 100 Operation Hours:

Oil Maintenance







WARNING:


To drain the oil from the Pump Crankcase:






For technical questions, please call 1-800-444-3353.SKU 67698









Air Filter Maintenance










REV 10h
Troubleshooting
Problem Possible Causes Likely Solutions




 

 






















 



 

 



 




 

 





 


 



 

Follow all safety precautions whenever diagnosing or servicing the
compressor. Disconnect power supply before service.
 For technical questions, please call 1-800-444-3353. SKU 67698
Part Description Qty
1  1
2  1
 1
  1
 8
5  8
6  2
7  2
8  2
9  2
10  2
11  2
12  12
  12
 
15  2
16  2
17  2
18  2
19  8
20  8
21  8
22  2
  2
  2
25  2
26  2
27  2
28  2
29  2
 
  2
  1
Part Description Qty
  2
  1
  1
  1
  1
  1
 
 
  1
  1
  1
  1
  1
  1
  1
  1
  1
50  1
51  1
52  1
  1
  1
55  1
55a  1
  2
  1
  1
56  6
57  6
58  1
59  1
60  1
61  1
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3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
Record Product’s Serial Number Here:
Note: 
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Harbor Freight Tools 67698 Air Compressor Pump User manual

Harbor Freight Tools
Brand
Harbor Freight Tools
Model
67698 Air Compressor Pump
Category
Air compressors
Type
User manual
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