Table of Contents
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6" Belt and 12" Disc
Abrasive Finishing Machine
(Model 31-731)
PART NO. 420-01-651-0013 - 05-28-03
Copyright © 2003 Delta Machinery
To learn more about DELTA MACHINERY
visit our website at: www.deltamachinery.com.
For Parts, Service, Warranty or other Assistance,
1-800-223-7278 (
1-800-463-3582).
please call
In Canada call
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Table of Contents
Related Manuals for Delta 31
Summary of Contents for Delta 31
- Page 1 6" Belt and 12" Disc Abrasive Finishing Machine (Model 31-731) PART NO. 420-01-651-0013 - 05-28-03 Copyright © 2003 Delta Machinery To learn more about DELTA MACHINERY visit our website at: www.deltamachinery.com. For Parts, Service, Warranty or other Assistance, 1-800-223-7278 ( 1-800-463-3582).
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Page 2: Safety Guidelines - Definitions
If you have any questions relative to a particular application, DO NOT use the machine until you have first contacted Delta to determine if it can or should be performed on the product. - Page 3 USE RECOMMENDED ACCESSORIES. The use OPERATING of accessories and attachments not recom- mended by Delta may cause damage to the machine or injury to the user. USE THE PROPER EXTENSION CORD. Make sure your extension cord is in good condition.
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Page 4: Additional Safety Rules
ADDITIONAL SAFETY RULES FOR ABRASIVE FINISHING MACHINES FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS PERSONAL INJURY. 1. DO NOT OPERATE THIS MACHINE until it is completely assembled and installed according to the instructions. A machine incorrectly assembled can cause serious injury. 2. -
Page 5: Power Connections
A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should be protected with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have 3- prong grounding type plugs and matching receptacle which will accept the machine’s plug. -
Page 6: Three Phase Operation
3. Grounded, cord-connected machines intended for use on a supply circuit having a nominal rating between 150 - 250 volts, inclusive: If the machine is intended for use on a circuit that has an outlet that looks like the one illustrated in Fig. C, the machine will have a grounding plug that looks like the plug illustrated in Fig. -
Page 7: Functional Description
FUNCTIONAL DESCRIPTION FOREWORD Delta Model 31-731 is a abrasive finishing machine. The Delta Model 31-731 includes two tilting tables, 4½" arbor pulley, V-belt, 80-grit aluminum oxide belt and 50-grit aluminum oxide disc. UNPACKING AND CLEANING YOUR MACHINE IS SHIPPED WITHOUT BELT TENSION APPLIED TO THE SANDING BELT. BEFORE OPERATING THE MACHINE IT IS VERY IMPORTANT THAT THE SANDING BELT IS PROPERLY ADJUSTED FOR CORRECT BELT TENSION AND IS TRACKING PROPERLY AS EXPLAINED IN THE SECTION "ADJUSTING... - Page 8 ALIGNING PULLEYS, ASSEMBLING BELT AND ADJUSTING BELT TENSION DISCONNECT MACHINE FROM POWER SOURCE Using a straight edge (A) Fig. 6, make certain the motor pulley (B) is aligned with the arbor pulley. If necessary, the motor pulley (B) can be adjusted on the motor shaft by loosening set screw and moving the motor pulley (B) in or out as needed.
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Page 9: Operating Controls And Adjustments
OPERATING CONTROLS AND ADJUSTMENTS STARTING AND STOPPING THE ABRASIVE FINISHING MACHINE To start the machine, push “ON” button (A) Fig. 10. To stop the machine, push “OFF” button (B). LOCKING SWITCH IN THE “OFF” POSITION IMPORTANT: When the tool is not in use, the switch should be locked in the OFF position using a padlock (A) Fig. - Page 10 (D) Fig. 14, being careful the adjusting screw (E) does not turn. 6. Replace top cover (B) Fig. 12. ADJUSTING BELT SANDER TABLE DISCONNECT MACHINE FROM POWER SOURCE. To tilt the table, loosen the table tilting handle (A) Fig. 15, move the table to the desired angle, and tighten the table tilting handle.
- Page 11 REPOSITIONING ALWAYS CHECK THE TRACKING OF THE BELT. ADJUSTING DISC SANDER TABLE The table is set at the factory so that the edge of the table is approximately 3/32" away from the face of the disc assembly. This is done to provide enough clearance for the table when it is tiIted to 45 degrees.
- Page 12 These adjustments are made at the factory; however, during shipment they may have been disturbed. If an adjustment is necessary, proceed as follows: BELT SANDER DISCONNECT MACHINE FROM POWER SOURCE. 1. Check to see if the miter gage slot is parallel with the...
- Page 13 ABRASIVE BELTS & DISCS - THEIR SELECTION AND USE Delta supplies a wide range of belts and discs for use on your Belt and Disc Finishing Machine. These belts and discs are recommended for a wide range of work on wood, metals, plastics and other materials. However, when a large amount of production work of one kind is to be done, it is best to call in a coated abrasive specialist for specific belt and disc recommendations.
- Page 14 NOTES...
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Page 15: Parts, Service Or Warranty Assistance
Two Year Limited New Product Warranty Delta will repair or replace, at its expense and at its option, any new Delta machine, machine part, or machine accessory which in normal use has proven to be defective in workmanship or material, provided that the customer returns the product prepaid to a Delta factory service center or authorized service station with proof of purchase of the product within two years and provides Delta with reasonable opportunity to verify the alleged defect by inspection. - Page 16 Delta products should be obtained by contacting any Porter-Cable · Service Center, or Porter-Cable Delta Factory Service Center. If you do not have access to any of these, call 800-223-7278 and you will · be directed to the nearest Porter-Cable Delta Factory Service Center.