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INSTRUCTION

MANUAL

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,

please call

1-800-223-7278 (

In Canada call

1-800-463-3582).

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Summary of Contents for 31

Page 1: ...ne 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 please call 1 800 223 7278 In Canada call 1 800 463 3582 ...

Page 2: ...D UNDERSTAND ALL WARNINGS AND OPERATING INSTRUCTIONS BEFORE USING THIS EQUIPMENT Failure to follow all instructions listed below may result in electric shock fire and or serious personal injury or property damage IMPORTANT SAFETY INSTRUCTIONS Woodworking can be dangerous if safe and proper operating procedures are not followed As with all machinery there are certain hazards involved with the opera...

Page 3: ...HE RIGHT MACHINE Don t force a machine or an attachment to do a job for which it was not designed Damage to the machine and or injury may result 13 USE RECOMMENDED ACCESSORIES The use of accessories and attachments not recom mended by Delta may cause damage to the machine or injury to the user 14 USE THE PROPER EXTENSION CORD Make sure your extension cord is in good condition When using an extensi...

Page 4: ...NS A sudden slip could cause a hand to move into the abrasive disc or belt 12 MAINTAIN A MAXIMUM CLEARANCE OF 1 16 be tween the table and the abrasive disc The workpiece could be drawn into the space between the abrasive disc and the table 13 SUPPORT THE WORKPIECE firmly with a miter gauge backstop or work table when sanding with a belt Hold the workpiece firmly Loss of control of the workpiece ca...

Page 5: ...ation having an outer surface that is green with or without yellow stripes is the equipment grounding conductor If repair or replacement of the electric cord or plug is necessary do not connect the equipment grounding conductor to a live terminal Check with a qualified electrician or service personnel if the grounding instructions are not completely understood or if in doubt as to whether the mach...

Page 6: ...WG 6 10 240 100 200 14 AWG 6 10 240 200 300 12 AWG 10 12 240 up to 50 16 AWG 10 12 240 50 100 16 AWG 10 12 240 100 200 14 AWG 10 12 240 200 300 12 AWG 12 16 240 up to 50 14 AWG 12 16 240 50 100 12 AWG 12 16 240 GREATER THAN 100 FEET NOT RECOMMENDED 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 inten...

Page 7: ...RCE UNTIL THE MACHINE IS COMPLETELY ASSEMBLED AND YOU READ AND UNDERSTAND THE ENTIRE INSTRUCTION MANUAL STAND AND ELECTRICALS If you purchased your machine complete with stand and electricals factory mounted and wired the stand is ship ped as shown in Fig 2 The switch A Fig 2 and motor B Fig 3 are completely assembled to the stand and the necessary wiring from the motor to the switch has been comp...

Page 8: ... CERTAIN BOTH PULLEYS ARE KEPT IN ALIGNMENT WHEN ADJUSTING BELT TENSION Correct belt tension is obtained when there is approximately one inch deflection in the center span of the belt using light finger pressure BE CERTAIN TO TIGHTEN ALL MOUNTING HARDWARE ONCE FINAL ADJUSTMENTS ARE MADE Fig 6 Fig 7 INSTALLING ABRASIVE DISC DISCONNECT MACHINE FROM POWER SOURCE 1 Make certain the disc assembly A Fig...

Page 9: ...ED 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 FOLLOWS DISCONNECT MACHINE FROM POWER SOURCE 1 Remove lock knob and washer A Fig 12 Remove top cover B 2 Turn the belt tension handle C Fig 13 clockwise to increase belt tension Correct tension is deter...

Page 10: ...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 The table tilting handle can be reposition ed by pulling out the handle and repositioning it on the hex nut located underneath the handle Positive table stops are provided at 90 and 45 To adjust the stops proceed as follows 1...

Page 11: ... provide enough clearance for the table when it is tiIted to 45 degrees If it is ever necessary to move the tabIe away from or closer to the disc loosen the four screws that hold the table to the trunnions and move the table away from or closer to the disc If you cannot obtain enough movement of the table with this method proceed as follows DISCONNECT MACHINE FROM POWER SOURCE 1 Remove two screws ...

Page 12: ...Fig 24 2 Slide the square the full width of the platen checking to be sure the distance between the miter gage slot and the platen is the same 3 If an adjustment is necessary loosen the three screws A Fig 24A that hold the table to the bracket and shift the table until the slot is parallel to the platen Then tighten the three screws DISC SANDER DISCONNECT MACHINE FROM POWER SOURCE 1 Check to see i...

Page 13: ...s will load when grinding aluminum dry and so a lubricant should always be used for this material To a varying degree this is true of other non ferrous metals like soft brass and zinc A grease stick is often applied to the belt or disc to prevent loading of the belt on softer materials especially aluminum When grinding steel or some kinds of plastic the grease stick is often used to prevent over h...

Page 14: ...14 NOTES ...

Page 15: ... 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 in...

Page 16: ...thern Avenue Suite 105 Phone 602 437 1200 Fax 602 437 2200 CALIFORNIA Ontario 91761 Los Angeles 3949A East Guasti Road Phone 909 390 5555 Fax 909 390 5554 San Leandro 94577 Oakland 3039 Teagarden Street Phone 510 357 9762 Fax 510 357 7939 COLORADO Arvada 80003 Denver 8175 Sheridan Blvd Unit S Phone 303 487 1809 Fax 303 487 1868 FLORIDA Davie 33314 Miami 4343 South State Rd 7 441 Unit 107 Phone 954...

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