Harbor Freight Tools 6" Air Dual Action Sander 68152 - Manual (Page 9)

Page 9 For technical questions, please call 1-800-444-3353. Item 68152
SAFET
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Op
ERA
TION
M
AINTENAN
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E
SETU
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Initial Set Up
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.
Note: This air tool may be shipped with a protective plug covering
the air inlet. Remove this plug before set up.
Air Supply Setup
TO pREVENT SERIOUS INJURy FROM 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, in-line shutoff valve, and quick
coupler for best service, as shown in
Figure A on page 10 and Figure B
on page 11. 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 coupler plug
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.
3. Turn the tool’s throttle or switch to
the off position; refer to Operation
section for description of controls.
4. Close the in-line shutoff valve between
the compressor and the tool.
5. Turn on the air compressor according to
the manufacturer’s directions and allow
it to build up pressure until it cycles off.
6. 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.
7. Inspect the air connections for leaks.
Repair any leaks found.
8. If the tool will not be used at this time,
turn off and detach the air supply and
safely discharge any residual air pressure
to prevent accidental operation.
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.