Powermatic 31A Operating Procedure

OPERATING PROCEDURE FOR:
Powermatic Model 31A Combination Belt-Disk Sander

INTRODUCTION:

The combination belt-disk sander is used to sand the edges of boards. It can be used to smooth
the edge or to remove material to bring the edge of the workpiece to a reference line. An
example would be to rough saw to just outside the desired profile cut with a band saw and to
then use the combination belt-disk sander to remove the excess material outside of the reference
line. The sander is equipped with both a 6" wide sanding belt and a 12" sanding disk. For each,
there is a table mounted to the machine to support the workpiece. The support tables can be
adjusted from 0 to 45 degrees and allow the sanded surface to be either beveled or square to the
surface of the workpiece. The sanding belt can be rotated from vertical to horizontal if that
provides a better operating position for the work to be done. The end of the sanding belt can also
be used to sand concave surfaces, although, a spindle sander is better suited to this task.

SAFETY RULES:

WARNING: Willful violations of these safety rules, disruptive actions or horseplay may
result in loss of the privilege to use the tools and machinery in the workshop.
WARNING: The abrasives used on this sander are capable of removing skin, flesh and
bones from your hand very quickly. Always ensure that the workpiece is gripped securely
and keep your hands away from the abrasive surfaces.
As with all machines, there is a certain amount of hazard involved with the use of this sander.
Use the machine with the respect and caution demanded where safety precautions are concerned.
You are responsible for you own safety.
Read and understand the operating procedures for this machine before attempting operation.
Personal Protective Equipment. At a minimum eye protection, hearing protection and a
NIOSH approved dust mask must be worn when operating this machine. Eye protection must be
safety glasses with side shields, goggles, or face shield, which meet ANSI Z87.1. Remove tie and
loose jewelry. Button sleeves or roll up sleeves above the elbow. Remove loose outer clothing
and confine long hair. Do not wear loose fitting gloves. If gloves are worn, they must fit
tightly to the hand.
Use the appropriate NIOSH approved respirator in dusty work conditions (N95, N100, P95
or P100). Wood dust has been listed as a known carcinogen by the U.S. government.
Guards. Ensure that the guard on the side of the sanding belt is in place.
Work Area. Keep the floor around the machine clean to minimize the danger of tripping or
slipping. Make sure the dust collector is hooked up and operating.
Operator Position. Maintain a balanced stance and keep your body under control at all times,
so that you do not fall or lean against the cutter or moving parts. Do not overreach or use
excessive force to perform any machine operation.
Valley Woodworkers of West Virginia – Powermatic 31A Combination Belt-Disk Sander
PPH November 16, 2012