Sherline 5000 Mill General Manual

General precautions
• DO NOT attempt to operate the lathe or mill without first mounting them to a
secure base. (See page 6.)
• DO NOT turn on the motor with a 3-jaw chuck mounted if the jaws are not
tightened on themselves or on a part.
• A chip guard (P/N 4360) is now available that offers additional protection from
flying chips when working near the spindle. It is not a substitute for wearing
proper eye protection but is an excellent level of additional protection. It will also
contain cutting oil to help keep your work area cleaner.
Avoid overtightening!
One of the problems with designing and manufacturing metal cutting equipment of this
size is that the operator can physically be stronger than the machine, which is not
normally the case with larger tools. For example, a 10-pound force applied a couple of
inches out on a hex key becomes a 650-pound force at the tip of the screw. If you tighten
both screws on the tool post this tight, it becomes approximately 1300 pounds of force on
relatively small parts! Tools and/or parts can become distorted and accuracy will be lost.
Overtightening hold down screws and T-nuts in their slots can distort the crosslide
or mill table. It is not necessary to overtighten parts and tools because loads are smaller
on equipment of this size. Save your equipment and increase accuracy by not
overtightening and by taking light cuts.
Don't overstress the motor!
It is also important to realize that you can overload the motor supplied with this lathe or
mill.* The many variables involved in machining, such as materials being machined, size
of cutter, shape of cutter, diameter of stock, etc., can leave but one rule to
follow...COMMON SENSE!
*The motor is thermally protected, so if it is overloaded it will simply shut down until it
cools. See section on thermal protection.
CAUTION!
Read all operating instructions and safety rules carefully before attempting any
machining operations.
Customer's responsibilities
Always use care when operating the lathe and mill. Follow safety rules for power tools.
Turn off motor before attempting adjustments or maintenance. (Do not simply turn the
speed control down to zero RPM but leave the motor switch on.) Be sure the work piece
is firmly supported on the lathe or mill. Accessories should be mounted and operated