Dymo 31-250 instruction manual Unpacking and Cleaning, Foreword

Page 6

EXTENSION CORDS

Use proper extension cords. Make sure your extension cord is in good condition and is a 3-wire extension cord which has a 3-prong grounding type plug and matching receptacle which will accept the machine’s plug. When using an extension cord, be sure to use one heavy enough to carry the current of the machine. An undersized cord will cause a drop in line voltage, resulting in loss of power and overheating. Fig. D, shows the correct gauge to use depending on the cord length. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

MINIMUM GAUGE EXTENSION CORD

RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES

Ampere

 

Total Length

Gauge of

Rating

Volts

of Cord in Feet

Extension Cord

 

 

 

 

0-6

120

up to 25

18 AWG

0-6

120

25-50

16 AWG

0-6

120

50-100

16 AWG

0-6

120

100-150

14 AWG

6-10

120

up to 25

18 AWG

6-10

120

25-50

16 AWG

6-10

120

50-100

14 AWG

6-10

120

100-150

12 AWG

 

 

 

 

10-12

120

up to 25

16 AWG

10-12

120

25-50

16 AWG

10-12

120

50-100

14 AWG

10-12

120

100-150

12 AWG

 

 

 

 

12-16

120

up to 25

14 AWG

12-16

120

25-50

12 AWG

12-16

120

GREATER THAN 50 FEET NOT RECOMMENDED

 

 

 

 

Fig. D

FUNCTIONAL DESCRIPTION

FOREWORD

The Delta Model 31-250 / 31-255X is an 18" x 36" drum sander with a two-speed drum. Its single-piece frame and cast- iron table construction provides accuracy, stability, and easy adjustments. This unit can be fitted with an optional outboard shaft that accommodates an accessory pneumatic drum for contour sanding. The 31-250 and 31-255X will provide accurate sanding for wood up to 18" in one pass (36" in two passes).

NOTICE: THE MANUAL COVER PHOTO ILLUSTRATES THE CURRENT

PRODUCTION MODEL. ALL OTHER ILLUSTRATIONS ARE REPRESENTATIVE

ONLY AND MAY NOT DEPICT THE ACTUAL COLOR, LABELING OR

ACCESSORIES AND MAY BE INTENDED TO ILLUSTRATE TECHNIQUE ONLY.

UNPACKING AND CLEANING

Carefully unpack the machine and all loose items from the shipping container(s). Remove the protective coating from all unpainted surfaces. This coating may be removed with a soft cloth moistened with kerosene (do not use acetone, gasoline or lacquer thinner for this purpose). After cleaning, cover the unpainted surfaces with a good quality household floor paste wax.

6

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Contents 18 x 36 Drum Sander Safety Guidelines Definitions Important Safety InstructionsStay ALERT, Watch What YOU are Doing Additional Safety Rules For Drum Sanders Hold the Work Firmly when sandingPower Connections Unpacking and Cleaning ForewordCarton Contents Drum Sander PartsAssembly Attaching LegsAttaching the Handwheel Attaching and Leveling Feed Table Attaching Thickness ScaleTable FEED/SPEED Switch Operating Controls and AdjustmentsLocking the Drum Switch in the OFF Position Starting and Stopping the MachineRaising and Lowering Feed Table Checking and Adjusting Feed Belt Tracking and TensionDisconnect Machine from Power Source TrackingChanging Drum SPEEDS/REPLACING Drive Belt Checking and Adjusting Table Parallel to DrumSetting the Height Scale Table Height AT this TimeRemoving and Replacing Drum Sanding Belt To relieve tension on the belt. Replace or change the beltRemoving and Replacing Feed Belt Dust CollectionWhat is Recommended for Dust Collection Frequently Asked QuestionsWhen do I Change the Drum SPEED? What Factors Affect Sanding OPERATIONS?HOW do I Sand Multiple BOARDS? What Causes Burn MarksWhat are the Maximum and Minimum Sanding Stock SIZES? HOW do I Sand the Edges of BOARDS?HOW do I GET STARTED? HOW do I Sand Glued BOARDS?HOW do I Sand Boards Wider than 18? Tips for Increasing Sanding Belt LifeTable Movement Troubleshooting Guide Tension on Timing BeltChecking the Table Support Plate Checking Lock NUT Adjustment Lock NUT AdjustmentDrum Motor Overload Protection MaintenanceBrush Inspection and Replacement Feed Belt Motor Overload ProtectionPage Page Accessories PARTS, Service or Warranty AssistanceCanadian PORTER-CABLE Delta Service Centers