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Chemical Concepts | 410 Pike Road, Huntingdon Valley, PA 19006 | Made in USA
www.chemical-concepts.com
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800.220.1966
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KEEP-NUT™
DRILLING MACHINE
MANUAL
12
sPINdle sIZe
The Alpha
®
AIR-680C air polisher features a 5/8”-11 spindle.
CAUTION!
maintenance and usage Tip:
• Do not leave the tool submersed in water. This could expose
the inner moving parts to moisture, which will shorten the life
of the tool.
• Do not leave threaded accessories on the spindle of tool for
extended periods of time; this may result in making it difficult
to remove these accessories.
• Excessive force or impact to the spindle may result in
premature failure of gears, keyways and bearings, which may
not be immediately evident.
AIR VAlVe leVeR
The valve lever controls the flow of air
through the tool. It has two positions- ON
or OFF. Run the tool at the recommended
pressure of 85 PSI, with the lever pointing
to the ON position. This will produce
4,000 RPM. Do not try to vary the speed.
The tool works best at full throttle only. Do
not attempt to exceed the recommended
speed by excess pressure. This will
significantly shorten the life of the tool.
When storing the tool overnight, disconnect from the air supply and
open the valve.
helPful hINT:
• Air valve lever should be opened and closed slowly to allow
the tool to accelerate and decelerate. Rapid acceleration and
deceleration can wear out the ball bearings prematurely.
WATeR CoNTRol VAlVe
This valve lets you adjust the flow of water
through the spindle. When storing the tool
overnight, open the valve and drain all water
from the supply hose and tool.
KEEP-NUT™ 5 x 8_Drill Manual AV.indd 22
9/17/19 2:01 PM