Harbor Freight Tools CentralPneumatic 66984 Instrucciones de montaje
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Owner’s Manual & Safety Instructions
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. 21a
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2016 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 an d se rv ic e may n ot b e in cl uded.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Item 66984 For technical questions, please call 1-888-866-5797. Page 2
WARNING SYMBOLS AND DEFINITIONS
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.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
IMPORTANT SAFETY INFORMATION
General Power Tool Safety Warnings
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term ″power tool″ in the warnings refers to your power tool.
Work Area Safety
1. Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
2. 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.
3. Keep children and bystanders
away while operating a power tool.
Distractions can cause you to lose control.
Personal Safety
1. Stay alert, watch what you are doing
and use common sense when operating
a power tool. Do not use a power
tool while you are tired or under the
influence of drugs, alcohol or medication.
A moment of inattention while operating power
tools may result in serious personal injury.
2. Use personal protective equipment.
Always wear eye protection. Protective
equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce
personal injuries.
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3. Prevent unintentional starting.
Ensure the Trigger is in the off-position
before connecting to power source,
picking up or carrying the tool.
Carrying power tools with your finger on the
Trigger or energizing power tools that have
the Trigger on invites accidents.
4. Remove any adjusting key or wrench
before turning the power tool on.
A wrench or a key left attached to a rotating
part of the power tool may result in personal
injury.
5. Do not overreach. Keep proper
footing and balance at all times. This
enables better control of the power tool in
unexpected situations.
6. Dress properly. Do not wear loose
clothing or jewelry. Keep your hair,
clothing and gloves away from moving
parts. Loose clothes, jewelry or long hair
can be caught in moving parts.
7. If devices are provided for the
connection of dust extraction and
collection facilities, ensure these
are connected and properly used.
Use of dust collection can reduce
dust-related hazards.
8. Only use safety equipment
that has been approved by an
appropriate standards agency.
Unapproved safety equipment may
not provide adequate protection.
Eye protection must be ANSI-approved
and breathing protection must be
NIOSH-approved for the specific hazards in
the work area.
Power Tool Use and Care
1. Do not force the power tool. Use the
correct power tool for your application.
The correct power tool will do the job
better and safer at the rate for which it was
designed.
2. Do not use the power tool if the Trigger
does not turn it on and off.
Any power tool that cannot be controlled
with the Trigger is dangerous and must
be repaired.
3. Disconnect the before making any
adjustments, changing accessories, or
storing power tools. Such preventive
safety measures reduce the risk of starting
the power tool accidentally.
4. Store idle power tools out of the reach
of children and do not allow persons
unfamiliar with the power tool or these
instructions to operate the power tool.
Power tools are dangerous in the hands of
untrained users.
5. Maintain power tools. Check for
misalignment or binding of moving
parts, breakage of parts and any other
condition that may affect the power tool’s
operation. If damaged, have the power
tool repaired before use. Many accidents
are caused by poorly maintained power
tools.
6. Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control.
7. Use the power tool, accessories and
tool bits etc. in accordance with these
instructions, taking into account the
working conditions and the work to
be performed. Use of the power tool for
operations different from those intended
could result in a hazardous situation.
Item 66984 For technical questions, please call 1-888-866-5797. Page 4
Service
Have your power tool serviced by a qualified repair person using only identical
replacement parts.
This will ensure that the safety of the power tool is maintained.
Impact Wrench Safety Warnings
1. Hold power tools by insulated gripping
surfaces when performing an operation
where the cutting tool may contact
hidden wiring or its own cord. Contact
with a ″live″ wire will make exposed metal
parts of the tool ″live″ and shock the
operator.
2. The amount of actual torque may vary
depending on the cleanness and condition
of the threads and other factors. If
tightening critical components, check the
actual torque applied to the fastener with a
mechanical torque wrench (not supplied).
3. Maintain labels and nameplates on the tool.
These carry important safety information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
4. Avoid unintentional starting. Prepare to
begin work before turning on the tool.
5. Do not lay the tool down until it has come to
a complete stop. Moving parts can grab the
surface and pull the tool out of your control.
6. When using a handheld power tool, maintain
a firm grip on the tool with both hands to
resist starting torque.
7. Do not leave the tool unattended when.
Turn off the tool, and before leaving.
8. This product is not a toy.
Keep it out of reach of children.
9. People with pacemakers should consult their
physician(s) before use. Electromagnetic
fields in close proximity to heart pacemaker
could cause pacemaker interference or
pacemaker failure.
10. 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.
Vibration Safety
This tool vibrates during use.
Repeated or long-term exposure to vibration may
cause temporary or permanent physical injury,
particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury:
1. Anyone using vibrating tools regularly
or for an extended period should first
be examined by a doctor and then have
regular medical check-ups to ensure
medical problems are not being caused
or worsened from use. Pregnant women
or people who have impaired blood
circulation to the hand, past hand injuries,
nervous system disorders, diabetes, or
Raynaud’s Disease should not use this tool.
If you feel any symptoms related to vibration
(such as tingling, numbness, and white or
blue fingers), seek medical advice as soon
as possible.
2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3. Wear suitable gloves to reduce the vibration
effects on the user.
Item 66984 For technical questions, please call 1-888-866-5797. Page 5
4. Use tools with the lowest vibration when
there is a choice.
5. Include vibration-free periods each day of
work.
6. Grip tool as lightly as possible (while still
keeping safe control of it). Let the tool do
the work.
7. To reduce vibration, maintain the tool as
explained in this manual. If any abnormal
vibration occurs, stop use immediately.
SAVE THESE INSTRUCTIONS.
Symbology
noNo-load speed
.../min Revolutions or reciprocation per
minute
PSI Pounds per square inch of pressure
ft-lb Foot-pounds of torque
BPM Blows per minute
CFM Cubic Feet per Minute flow
SCFM Cubic Feet per Minute flow at
standard conditions
NPT National pipe thread, tapered
NPS National pipe thread, straight
WARNING marking concerning Risk
of Eye Injury. Wear ANSI-approved
eye protection.
WARNING marking concerning Risk
of Hearing Loss. Wear hearing
protection.
WARNING marking concerning Risk
of Respiratory Injury. Wear NIOSH-
approved dust mask/respirator.
WARNING marking concerning Risk
of Explosion.
Use only clean, dry, regulated,
compressed air to power this tool.
Do not use oxygen, carbon dioxide,
combustible gases, or any other
bottled gas as a power source for
this tool.
Item 66984 For technical questions, please call 1-888-866-5797. Page 6
Specifications
Maximum Air Pressure 90 PSI
Air Inlet 3/8″ -18 NPT
Drive Size 3/4″ Square Drive
Maximum Speed* 762 BPM (Blows Per
Minute)
Average Air
Consumption 7 CFM @ 90 PSI
Maximum Torque 1000 ft-lb
* Maximum speed at stated maximum air pressure.
Excess air pressure is hazardous and may cause the
tool to exceed stated maximum speed.
Required Air Hose: 1/2″ (Not Supplied)
Initial Tool Set Up/Assembly
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.
Note: For additional information regarding the
parts listed in the following pages, refer to the
Assembly Diagram near the end of this manual.
Air Supply
TO PREVENT EXPLOSION:
Use only clean, dry, regulated, compressed air to power this tool. Do not use
oxygen, carbon dioxide, combustible gases, or any other bottled gas as a power
source for this tool.
1. Incorporate a filter, regulator with pressure
gauge, oiler, in-line shutoff valve, and quick
coupler for best service, as shown in the
air tool setup examples at the end of this
section. 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.
Note: If an automatic oiler system is not used,
add a few drops of Pneumatic Tool Oil to the
airline connection before operation. Add a
few more drops after each hour of continual
use.
2. Attach an air hose to the compressor’s
air outlet. Connect the air hose to the air
inlet of the tool. Other components, such
as a connector and quick coupler, will
make operation more efficient, but are not
required.
WARNING! TO PREVENT SERIOUS INJURY
FROM ACCIDENTAL OPERATION:
Do not install a female quick coupler
on the tool. Such a coupler contains an
air valve that will allow the air tool to retain
pressure and operate accidentally after the
air supply is disconnected.
Note: Air flow, and therefore tool performance,
can be hindered by undersized air supply
components.
Item 66984 For technical questions, please call 1-888-866-5797. Page 7
3. The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
4. Release the tool’s Trigger (39); refer to
Operation section for description of controls.
5. Close the in-line safety valve between the
compressor and the tool.
6. Turn on air compressor according to
manufacturer’s directions and allow it to
build up pressure until it cycles off.
7. Adjust the air compressor’s output regulator
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. Adjust the pressure gradually,
while checking the air output gauge to set
the right pressure range.
8. Inspect the air connections for leaks. Repair
any leaks found.
9. If the tool will not be used at this time,
release the Trigger, close the shut-off valve,
and detach it from the air supply, safely
discharge any residual air pressure.
Note: Residual air pressure should not be
present after the tool is disconnected from
the air supply. However, it is a good safety
measure to attempt to discharge the tool
in a safe fashion after disconnecting to
ensure that the tool is disconnected and
unpowered.
Item 66984 For technical questions, please call 1-888-866-5797. Page 8
Air Tool & Spray Gun Portable Setup
Description Function
A Air Hose Connects air to tool
B Filter Prevents dirt and condensation from damaging tool or work piece
C Regulator Adjusts air pressure to tool
D Lubricator (optional) For air tool lubrication
E Coupler and Plug Provides each connections
F Leader Hose (optional) Increases coupler life
G Air Cleaner / Dryer (optional) Prevents water vapor from damaging work piece
H Air Adjusting Valve (optional) For fine tuning airflow at tool
G
A
E
E H
F
B
Non-lubricated
Tools
Lubricated
Tools
A
B
C
C
DA
Item 66984 For technical questions, please call 1-888-866-5797. Page 9
Air Tool & Spray Gun Stationary Setup
Description Function
A Vibration Pads For noise and vibration reduction
B Anchor Bolts Secures air compressor in place
C Ball Valve Isolates sections of system for maintenance
D Isolation Hose For vibration reduction
EMain Air Line - 3/4″ minimum recommended Distributes air to branch lines
F Ball Valve To drain moisture from system
GBranch Air Line -1/2″ minimum recommended Brings air to point of use
H Filter Prevents dirt and condensation from damaging tool or work piece
I Air Cleaner / Dryer (optional) Prevents water vapor from damaging work piece
J Regulator Adjusts air pressure to tool
K Lubricator For air tool lubrication
L Air Hose Connects air to tool
M Coupler and Plug Provides each connections
N Air Adjusting Valve For fine tuning airflow at tool
O Leader Hose Increases coupler life
I
M
M N
O
C
C
Non-lubricated
Tools
Lubricated
Tools
L
H
H
J
JKL
F
G
E
Slope
F
F
B B
A A
CD
Item 66984 For technical questions, please call 1-888-866-5797. Page 10
Operating Instructions
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.
Inspect tool before use, looking for damaged, loose, and missing parts. If any
problems are found, do not use tool until repaired.
Tool Set Up
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Turn off the tool, detach the air supply, safely discharge any residual air
pressure in the tool, and release the throttle and/or turn the switch to its off position before
performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY: Do not adjust or tamper with any control or component in a
way not specifically explained within manual. Improper adjustment can result in tool failure
or other serious hazards.
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
and distraction.
2. Route air hose along a safe route to reach
work area without creating a tripping hazard
or exposing air hose to possible damage.
Also avoid sharp bends and do not place
items on hose during use.
3. The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
4. There must not be hazardous objects (such
as utility lines) nearby that will present a
hazard while working.
General Operating Instructions
5. CAUTION! Use only 3/4″ Drive Impact type
sockets (not supplied).
6. If an automatic oiler is not used, add a few
drops of Pneumatic Tool Oil to the airline
connection before use. Add a few drops
more after each hour of continual use.
7. Push and snap socket (not included) onto
Anvil (8). See Assembly Diagram on page
12.
8. This Wrench can be used in either
Forward or Reverse direction. To operate
in Forward, turn the Regulator Knob (33)
counterclockwise or to the right. NOTE:
There are three torque settings for the
Forward direction.
9. For Reverse, turn the Regulator Knob
to clockwise or to the left. NOTE: There
are three torque settings for the Reverse
direction.
10. To tighten, place the socket over the nut you
wish to tighten.
11. Hold the handle firmly and place other hand
on top of Housing (13). Then gently squeeze
the Trigger (39).
12. To loosen, set the Regulator Knob to the
Reverse setting.
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