Powermatic 31A User Manual
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Machine adjustments. Make all machine adjustments with power off except belt tracking. Belt tracking should be 
checked manually before starting the sander, but final adjustment may have to be made after starting up the sander. 
 
Table safety. Be sure the table is locked in position before placing stock on it and that its front edge is within 1/16” 
or less, of the disc or belt. 
 
Job completion.  If the operator leaves the machine area for any reason, the sander should be turned "off" and the 
abrasive belts should come to a complete stop before his departure. In addition, if the operation is complete, he 
should clean the sander and the work area. Never clean the sander with power "on" and never use the hands to 
clear sawdust and debris; use a brush. 
 
Replacement parts. Use only Powermatic or factory authorized replacement parts and accessories; otherwise the 
warranty and guarantee is null and void. 
 
Misuse. Do not use this Powermatic sander for other than its intended use. If used for other purposes, Powermatic 
disclaims any real or implied warranty and holds itself harmless for any injury or damage which may result from that 
use. 
 
If you are not thoroughly familiar with the operation of sanders, obtain advice from your supervisor, instructor or 
other qualified person. 
 
Drugs, alcohol, medication. Do not operate this machine while under the influence of drugs, alcohol, or any 
medication. 
 
Health hazards.  Some dust created by power sanding, sawing, grinding, drilling and other construction activities 
contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these 
chemicals are: 
* Lead from lead-based paint. 
* Crystalline silica from bricks and cement and other masonry products. 
* Arsenic and chromium from chemically-treated lumber. 
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure 
to these chemicals, work in a well-ventilated area, and work with approved safety equipment, such as those dust 
masks that are specifically designed to filter out microscopic particles. 
 
 
Familiarize yourself with the following safety notices used in this manual: 
 
 
CAUTION: (This means that if precautions are not heeded, it may result in minor or moderate injury
 
 and/or possible machine damage) 
 
 
WARNING: (This means that if precautions are not heeded, it could result in serious injury or
possibly even death).
 
 
 
 
 
 
 
 
 
 
 
 
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