12
MAINTENANCE
Duo-Fast
®
tools are built for ease of maintenance. A few
simple details will assure trouble-free operation and long
tool life. Anyone who uses or maintains the tool must read
the safety and maintenance instructions. Study the sche-
matic drawing before starting any repairs on the tool.
Air-operated tools must be inspected periodically, and worn
or broken parts must be replaced to keep the tool operating
safely and efficiently. Also the items on the maintenance
chart must be checked often.
Cold Weather Care
When temperatures are below freezing, tools should be
kept warm by any convenient, safe method. If this is not
possible, the following procedure should be used to warm
up the tools.
❑
Reduce the regulated air pressure to 30 psi.
❑
Remove all fasteners from the tool.
❑
Connect an air line and blank fire the tool. The reduced
air pressure will be enough to free-fire the tool. Slow speed
operation tends to warm up the moving parts. Slowing up
the piston helps the bumper and the O-rings to become
springy.
❑
Once the tool is warmed up, readjust the regulator to the
proper working pressure and reload the tool.
❑
Tool operators working outdoors or in unheated areas in
extremely cold temperatures should also:
Use pneumatic oil with antifreeze in the
lubricator, Part No. 219090 (8oz.)
Once a week, depending on the amount of tool use,
take the tool apart and wash away any sludge with
tool cleaner (Part No. 219086) to keep the tool
operating efficiently.
Cleaning the air-operated tools with solvents removes the
thin coating of grease applied to the cylinder wall and
O-rings at the factory. To replace this coating of grease,
use Chemplex grease (Part No. 403734).
❑
Open the drain on the air compressor tank to drain any
moisture at least daily in extremely cold or humid weather.
A few ounces of anti-freeze in the tank will keep the air
free of frost.
Testing the Tool After Servicing
After replacing any part or parts, it is important to check
the tool for proper operation. This ensures that the tool
was put together correctly, is safe to use, and will perform
the job properly.
❑
Ensure that all hardware is tight.
❑
Ensure that the work contacting element is installed
correctly in relation to the trigger, and that both parts move
freely.
❑
Ensure that the magazine is properly attached.
❑
Ensure that the required safety information on the tool
is legible.
❑
Use only
Duo-Fast
®
approved fasteners in the tool, and
ensure that they are correct for the application.
❑
Ensure that a male air fitting is securely connected to
the tool.
❑
Test the tool by driving fasteners into a workpiece iden-
tical to the tool's application.
❑
Check the tool for air leaks during testing and for the
proper sequence of operation.
❑
Ensure that all fasteners are driven to the same depth
and that the crown of the fastener is flush with the work-
piece.