Powermatic 31A, Operating Instructions And Parts Manual

Page 1: ...nual Combination Belt Disc Sander Model 31A WALTER MEIER Manufacturing Inc 427 New Sanford Road LaVergne Tennessee 37086 Part No M 0460267 Ph 800 274 6848 Revision H 11 09 www powermatic com Copyright 2009 Walter Meier Manufacturing Inc ...

Page 2: ...mination postage prepaid to a location designated by us For the name of the location nearest you please call 1 800 274 6848 You must provide proof of initial purchase date and an explanation of the complaint must accompany the merchandise If our inspection discloses a defect wewill repair or replace the product or refund the purchase price at our option We will return the repaired product or repla...

Page 3: ... Single Phase Model 13 Electrical Connections 13 Adjustments 15 Platen Adjustment 15 Sanding Table Adjustment 15 Work Stop 16 Belt Arm Positioning 16 Operation 17 Template Forms 17 Fence Table 17 Types of Operations 18 Maintenance 19 Lubrication 19 Extension Cords 14 Guide to Sanding Belts and Discs 20 Troubleshooting 21 Replacement Parts 21 Parts List 31A Stand Assembly 1PH 22 31A Stand Assembly ...

Page 4: ...place except when contour sanding and swing it back into position immediately after completing the contour sanding task Work area Keep the floor around the machine clean and free of scrap material saw dust oil and other liquids to minimize the danger of tripping or slipping Make certain the work area is well lighted and that a proper exhaust system is used to minimize dust Powermatic recommends th...

Page 5: ... 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 ...

Page 6: ...ing Positions deg 0 45 and 90 0 45 and 90 Disc Table Size in 17 1 4 x 9 17 1 4 x 9 Disc Table Tilt deg 15 up 45 down 15 up 45 down Belt Table Size in 13 1 4 x 7 1 2 13 1 4 x 7 1 2 Belt Table Tilt deg 45 down 45 down Disc Speed RPM 2375 2375 Belt Speed SFPM 2410 2410 Dust Port Diameter in 4 4 Dust Collection Minimum CFM Required 400 400 Motor 1 1 2HP 1PH 115 230V 2HP 3PH 230 460V pre wired 115V 60H...

Page 7: ...is tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Sketch A in Figure 1 The tool has a grounding plug that looks like the plug illustrated in Sketch A in Figure 1 A temporary adapter which looks like the adapter illustrated in Sketch B and C may be used to connect this plug to a 2 pole receptacle as shown in Sketch C if a properly grounded outlet is ...

Page 8: ... padlock not included To safeguard your machine from unauthorized operation and accidental starting by young children the use of a padlock is highly recommended see Figure 3 A padlock Stock No 709012 A is available from your local authorized Walter Meier distributor or by calling Walter Meier at the phone number on the cover of this manual Figure 3 ...

Page 9: ...and safety instructions Contents of the Shipping Container Container 1 Sander 1 Belt Disc Sander 1 Abrasive Belt 6 x 48 60 grit 1 Abrasive Disc 12 dia 60 grit 1 Disc Table Assembly 1 Fence Assembly 1 Miter Gauge Assembly 1 Bag of Fasteners contains 2 Socket Head Cap Screws M10x25 AA 4 Hex Head Screws M8 x 25 BB 4 Lock Washers M8 CC 4 Flat Washers M8 DD 2 Flat Washers M10 EE 1 Owner s Manual not sh...

Page 10: ... the sander to the stand with four M8 x 25 hex head screws BB four M8 lock washers CC and four M8 flat washers DD NOTE Hand tighten the screws only until all four are inserted then tighten them completely with a 13mm wrench Refer to Figure 6 5 The drive belt is already mounted on the disc pulley behind the disc as shown in Figure 6 However it should be checked to ensure that it is in the pulley gr...

Page 11: ...ur hand while the machine is off The abrasive belt should remain at the center of the drums 7 If the belt veers to one side or the other loosen the locking wheel D and rotate the tracking knob E either left or right until the belt centers itself When manual tracking appears successful turn the machine on for a moment and confirm that the abrasive belt will remain centered during operation If neede...

Page 12: ...rasive disc 2 Remove the backing from the abrasive disc to expose the adhesive and carefully center it on the sander s metal disc Press the abrasive disc firmly working from the center out to prevent creases or air bubbles 3 Tighten the two screws on the front panel When removing an old abrasive disc use mineral spirits or a similar cleaning product to remove any residual adhesive from the sander ...

Page 13: ...60 volt operation or hard wire the sander directly to a service panel The installer shall follow local regulations and National Electrical Code ANSI NFPA 70 installation requirements If the Sander is to be hard wired to a panel make sure a disconnect is available for the operator During hard wiring of the machine make sure the fuses have been removed or the breakers have been tripped in the circui...

Page 14: ...the equipment grounding conductor can result in a risk of electric shock The conductor with insulation 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 ...

Page 15: ... 15 1 Swing the end guard out of position and remove the side cover Remove the abrasive belt 2 Using a 6mm hex wrench loosen the two socket head cap screws inside the belt arm and shift the platen as needed The platen should be 1 32 to 1 16 above the tangent points of the pulleys and in contact with the belt at both ends A straight edge can be used with the abrasive belt to align the platen as sho...

Page 16: ... the belt If removed for through sanding the work stop should be immediately reinstalled after the through sanding operation unless the fence attachment is used in its place for 45 degree or vertical positions of the arm Use a 10mm hex wrench to remove or install the work stop Belt Arm Positioning Your sander is equipped with an index pin arrangement to lock the belt arm in 0 degree 45 degree and ...

Page 17: ...ree angles by loosening the knob A on the center portion of the attachment Manually move the fence to the desired angle and tighten the knob A To position the fence at an angle across the belt for skew sanding as shown in Figure 22 use a 3 16 hex wrench to loosen the two socket head screws B Figure 21 Rotate the fence attachment by sliding it around the bolts using the curved slot C When the desir...

Page 18: ...ence See Figure 25 Edge sanding and flat surface sanding can also be done with the belt arm in a vertical position by using the fence assembly as a table Miters and compound miter cuts can be sanded using the table and the miter gauge Special fixtures can also be designed to use on the table for circular and form sanding Contour sanding can be done using the idler pulley with the end guard swung d...

Page 19: ...closures and there are no loose or worn electrical fittings or wiring If the power cord is worn cut or damaged in any way have it replaced immediately Keep the fence and table surfaces clean and free of rust Lubrication Periodically lubricate the following parts on the 31A Sander Use a good quality non hardening grease on Idler slide Figure 27 table trunnion shown in Figure 11 Use SAE No 10 Oil on...

Page 20: ...20 Guide to Sanding Belts and Discs ...

Page 21: ...t tension is inadequate Tighten abrasive belt page 11 Excessive pressure Reduce pressure against belt Drive belt is loose Properly tension drive belt page 10 Aluminum disc stalls Drive belt is loose Properly tension drive belt page 10 Disc shaft key is missing Replace key Excessive abrasive belt replacement Using too much pressure when sanding Reduce pressure against belt Not using full width of b...

Page 22: ... Head Screw M5 x 8 2 19 31A 219 Hex Head Screw M10 x 160 1 20 31A 93 Self Tapping Screw M3 5 x 38 2 21 31A 94 Switch 1PH 1 22 TS 1551061 Lock Washer M8 4 23 31A 223 Hex Head Screw M8 x 20 4 24 31A 95 Hex Head Screw M8 x 25 4 25 TS 1551061 Lock Washer M8 4 26 TS 1550061 Flat Washer M8 12 27 TS 1540061 Hex Nut M8 4 28 31A 97 Motor Cord 1PH 1 29 31A 98 Power Cord 1PH 1 30 31A 99 Hex Nut M10 1 31 31A ...

Page 23: ...23 31A Stand Assembly 1PH ...

Page 24: ...1 Magnetic Switch Assembly 2HP 3PH 230V 1 31A MSA 2 Magnetic Switch Assembly optional 2HP 3PH 460V 1 31A 16 1 Power Cord 3PH 1 31A 16 2 Motor Cord 3PH 1 31A 16 3 Strain Relief PG25A 16B 2 31A 16 4 Magnetic Switch 1 17 31A 219 Hex Head Screw M10 x 160 1 18 TS 1551061 Lock Washer M8 4 19 31A 223 Hex Head Screw M8 x 20 4 20 31A 95 Hex Head Screw M8 x 25 4 21 TS 1551061 Lock Washer M8 4 22 TS 1550061 ...

Page 25: ...25 31A Stand Assembly 3PH ...

Page 26: ...asting 1 25 31A 25 Rocker Arm 1 26 31A 26 Hex Head Bolt 1 27 31A 27 Platen 1 28 31A 28 Side Cover 1 29 BB 6205ZZ Bearing 6205ZZ 2 30 31A 30 Pan Head Screw w Flange M5 x 8 1 31 31A 31 Bearing Housing 1 32 TS 1551061 Lock Washer M8 3 33 TS 1504051 Socket Head Cap Screw M8 x 25 3 34 31A 32 Key 6 x 6 x 40 1 35 31A 33 Shaft 1 36 31A 34 Special Washer 2 37 31A 35 Pulley 1 38 31A 36 Belt Guard 1 39 31A 3...

Page 27: ...5 4 73 VB A50 V belt A50 1 74 31A 64 Roll Pin 5mm dia x 30 1 75 31A 65 Stop Block 1 76 Sanding Belt local purchase 12 dia 1 77 Sanding Disc local purchase 6 x 48 1 78 31A 68 Lock Knob 8mm x 20 1 79 31A 69 Flat Washer M8 x 30 dia 1 80 31A 70 Lock Knob M10 x 1 25P 1 81 31A 71 Tilting Scale 1 82 31A 72 Rivet 2mm dia x 5 2 83 31A 73 Pan Head Screw M6 x 8 1 84 31A 74 Pointer 1 85 TS 1550041 Flat Washer...

Page 28: ...28 31A Sander Body Assembly ...

Page 29: ...29 Electrical Connections 1 Phase ...

Page 30: ...30 Electrical Connections 3 Phase 9 5 R Ma nAuto 9 6 97 98 O R 1 4NO A2 17 4T2 6T3 2T1 13 NO 5 L3 3L 2 A1 1L 1 95 R Ma nAuto 9 6 9 7 98 O R 14NO A2 17 4T2 6T3 2 T1 1 3NO 5L3 3L 2 A1 1L 1 ...

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Page 32: ...32 WALTER MEIER Manufacturing Inc 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www powermatic com www waltermeier com ...