Foredom Series SR - Manual (Page 6)

Operating Tips
Your Foredom motor may be operated in a vertical or
horizontal position, but it should not be enclosed or
confined so as to restrict air circulation. If the motor is
hung up above a workbench, be sure it is fastened secure-
ly to the wall or motor hanger. The motor may develop a
high operating temperature (up to 100
o F + ambient) after
prolonged use, and it will be too hot to hold. This will not
harm the motor which is designed to operate at this
temperature for prolonged periods.
Do Not Bend at Tight Angle
Shafts and sheaths are stronger and last longer when they are
used without sharp bends. If used at angles or loops, wear will
occur at the points of greatest friction. When operating your power
tools be careful not to bend the flexible shaft too much at either the
handpiece or motor shaft connections. Excessive heat and wear will
occur if the bend is too great.
Follow these guidelines for trouble-free use–
a 4″ or larger radius, as shown to the right, should be maintained for
shafts on all motors. In its normal curved position, Series SR flexible shaft
machines can tolerate up to 12 lbs. of torque. There is no way to avoid
ultimate wear and under normal conditions a flexible shaft machine may
require several replacement shafts and sheaths during its life-time.
Do Not Force the Tool
Let the speed of the tool do the work. A light touch is always advised. Use extra caution when
carving around an edge, especially when using Typhoon
® or other aggressive burs. Applying
excessive side pressure may cause the shank or shaft of any accessory to bend or break. It is also
important to insert the shank or shaft of an accessory or mandrel into the collet or chuck of the
handpiece as far as possible in order to provide proper support. The collet or chuck should also
be securely tightened before use. Generally, slower speeds are used when greater control over the
accessory is required for precise, delicate work. Higher speeds are used for carving (shaping and
stock removal) buffing, cutting and polishing metals.
Do Not
Do This!
Minimum
Operating
Radius
4 ″ radius
4″
ra
di
us
6
Begin with a light
touch when applying
an accessory to the
work piece, and
experiment with
different angles for
achieving the results
you want.