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Powermatic 1285, Operating Instructions And Parts Manual

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Powermatic 1285 Operating Instructions And Parts Manual Download Page 7

 

7 

Introduction 

This manual is provided by Powermatic covering the safe operation and maintenance procedures for a 
Model 1285 Jointer. This manual contains instructions on installation, safety precautions, general 
operating procedures, maintenance instructions and parts breakdown. This machine has been designed 
and constructed to provide years of trouble free operation if used in accordance with instructions set forth 
in this manual. If there are any questions or comments, please contact either your local supplier or WMH 
Tool Group. WMH Tool Group can also be reached at our web site: www.wmhtoolgroup.com. 

 

Specifications 

 

Model Number ................................................................................................................................... 1285 
Stock Number (3HP, 1Ph, 230V, with standard cutterhead).......................................................... 1791241 
Stock Number (3HP, 3Ph, 230V/460V*, with standard cutterhead) ............................................... 1791249 
Stock Number (3HP, 1Ph, 230V, with helical cutterhead) ............................................................. 1791307 
Stock Number (3HP, 3Ph, 230V/460V*, with helical cutterhead) ................................................... 1791308 
Cutting Capacity (W x D) (in.).................................................................................................. 11-3/4 x 3/4 
Cutterhead Speed (RPM).................................................................................................................. 5,000 
Rabbeting Capacity (in.)........................................................................................................................ 3/4 
Table Surface (L x W) (in.) ............................................................................................................. 84 x 12 
Outfeed Table Height from Floor (in.) ............................................................................................... 31-5/8 
Fence Size (L x W) (in.) ....................................................................................................... 47-1/4 x 5-1/4 
Fence Tilt (degrees)...................................................................................................... 90, 45 right, 45 left 
Fence Positive Stops (deg.) ....................................................................................................... 45 and 90 
Number of Knives – standard cutterhead ................................................................................................. 3 
Number of Inserts – helical cutterhead ........................................................................ 44, with 2 rabbeting 
Size of knives – standard cutterhead (L x W x T) (in.)........................................................ 12 x 13/16 x 1/8 
Dust Collection Minimum CFM Required.............................................................................................. 800 
Approximate Net Weight (lbs.) ............................................................................................................. 762 
Approximate Shipping Weight (lbs.) ..................................................................................................... 880 
 
*pre-wired 230V  
 
 

 

The above specifications were current at the time this manual was published, but because of our policy of 
continuous improvement, WMH Tool Group reserves the right to change specifications at any time and 
without prior notice, without incurring obligations. 

 
 

Summary of Contents for 1285

Page 1: ...ing Instructions and Parts Manual 12 Jointer Model 1285 WMH TOOL GROUP 2420 Vantage Drive Elgin Illinois 60123 Part No M 0460216 Ph 800 274 6848 Revision C1 12 05 www wmhtoolgroup com Copyright WMH Tool Group ...

Page 2: ...tions outside our facilities or to a lack of maintenance WMH TOOL GROUP LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD SPECIFIED ABOVE BEGINNING FROM THE DATE THE PRODUCT WAS PURCHASED AT RETAIL EXCEPT AS STATED HEREIN ANY IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS ARE EXCLUDED SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG THE IMPLIED WARRANTY LASTS SO THE ABOVE LIMITATION MAY NOT APPLY TO ...

Page 3: ...g 19 Surfacing 19 Rabbeting 19 Jointing Warped Surfaces 20 Jointing Short or Thin Work 20 Direction of Grain 20 Beveling 20 Maintenance 21 Lubrication 21 Cutterhead Repairs 21 Knife Inserts Helical Cutterhead 22 Whetting Knives Straight Cutterhead 23 Optional Accessories 27 Replacement Parts 27 Parts List Stand Assembly 28 Stand Assembly 29 Parts List Table Assembly 30 Table Assembly 31 Parts List...

Page 4: ...enic and chromium from chemically treated lumber Your risk of exposure 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 face or dust masks that are specifically designed to filter out microscopic particles 10 Do not operate this machine while tired or under the influence ...

Page 5: ...mplete stop 29 Remove loose items and unnecessary work pieces from the area before starting the machine 30 Never surface stock less than 12 inches long or 3 inches wide or 3 inches thick without a hold down or push block 31 When working on the jointer follow the 3 inch radius rule The hands must never be closer than 3 inches to the cutterhead See Figure A 32 Use extra care in the location of the j...

Page 6: ...rl grain wood or burls With this type of work the operator must use a lesser depth of cut and a slow rate of feed Familiarize yourself with the following safety notices used in this manual This means that if precautions are not heeded it may result in minor injury and or possible machine damage This means that if precautions are not heeded it may result in serious injury or possibly even death SAV...

Page 7: ...rhead 1791249 Stock Number 3HP 1Ph 230V with helical cutterhead 1791307 Stock Number 3HP 3Ph 230V 460V with helical cutterhead 1791308 Cutting Capacity W x D in 11 3 4 x 3 4 Cutterhead Speed RPM 5 000 Rabbeting Capacity in 3 4 Table Surface L x W in 84 x 12 Outfeed Table Height from Floor in 31 5 8 Fence Size L x W in 47 1 4 x 5 1 4 Fence Tilt degrees 90 45 right 45 left Fence Positive Stops deg 4...

Page 8: ...or Read the instruction manual thoroughly for assembly maintenance and safety instructions NOTE The wrenches and knife setting gauge will be found inside the jointer stand Contents of the Shipping Container 1 Jointer 1 Fence Assembly 1 Dust Hood 1 Knife Setting Gauge 1 Hex Wrench 10mm 1 Combination Wrench 10 12mm 2 Push Blocks 1 Owner s Manual 1 Warranty Card Read and understand the entire content...

Page 9: ... The machine can be further stabilized by bolting it to the floor using lag screws through the holes on the inside of the stand 5 This machine is equipped with noise reducing table lips The work site should however be one which minimizes reverberant sound from walls ceilings and other equipment 6 Exposed metal areas of the jointer including the table and fence surfaces have been factory coated wit...

Page 10: ...y a qualified electrician in compliance with all relevant codes This machine must be properly grounded to help prevent electrical shock and possible fatal injury This machine must be grounded Grounding provides a path of least resistance to help divert current away from the operator in case of electrical malfunction Make sure the voltage of your power supply matches the specifications on the motor...

Page 11: ...anual 4 Replace the 230 volt contactor see Figure 7 with the 460 volt contactor stock no PJ1285 109 The 460 volt contactor is available through your authorized Powermatic distributor or by calling 1 800 274 6848 5 If you are using a plug on the jointer s power cord install an appropriate 460 volt plug 6 After wiring for the new voltage turn on the machine and observe the rotation of the cutterhead...

Page 12: ...r hex nut A Figure 11 NOTE The belts should be inspected again after the first few times the machine is used as the belts may stretch slightly during the breaking in process Setting Outfeed Table Height For accurate work in most jointing operations the outfeed table must be exactly level with the knives inserts at their highest point of revolution The outfeed table on the Model 1285 has been pre s...

Page 13: ...p screw A Figure 12 counter clockwise 5 When the outfeed table is level with the knives tighten the hex nut B Figure 12 and firmly tighten the handwheel C Figure 12 After the outfeed table has been set it should not be changed except for special operations As a final check of the outfeed table adjustment turn on the jointer and run a scrap piece of wood slowly over the knives for 6 to 8 inches the...

Page 14: ... Figure 17 and adjust the stop screw D Figure 17 as necessary When finished retighten hex nut E Figure 17 If the infeed table is level with the knives but the scale pointer C Figure 17 appears to be off loosen the scale pointer with a screwdriver and adjust it as needed until it reads zero Retighten the screw Replacing and Setting Knives Straight Cutterhead Jointer knives are very sharp Use care a...

Page 15: ...roper depth 9 While keeping the knife setting gauge in place tighten the six gib screws just enough to hold the knife in position Start with the center screws first and work your way toward the end screws 10 Repeat steps 3 through 9 for the other two knives in the cutterhead Make the gib screws just tight enough to hold the knives in position With all three jointer knives in the cutterhead the kni...

Page 16: ...ebris that would prevent the gib and insert from seating properly Wipe out the slot and clean with solvent if needed 4 Flip the knife insert 180 degrees and place it onto the two pins of the gib Make sure the knife edge faces the proper direction see Figure 21 5 Re install the gib into the slot 6 Firmly tighten the gib screw A Figure 20 NOTE To ensure optimal cutting all knife inserts in the cutte...

Page 17: ... to prevent scratching the table surface 3 Retighten lock handle D Figure 22 To move fence forward or backward 1 Loosen lock handle G Figure 22 and rotate handwheel H Figure 22 counterclockwise for forward fence movement clockwise for backward fence movement 2 When desired position is reached securely tighten lock handle G Figure 22 To check and adjust the 90 degree stop 1 Loosen lock handle D Fig...

Page 18: ...ush the knob to the right to increase guard tension or to the left to decrease guard tension 2 Tighten the knob in that position Operating Controls The push button on off switch is conveniently positioned above the table Figure 25 Do not remove the clear plastic cover as this keeps wood dust out of the switch Operation NOTE If you are inexperienced at jointing use scrap pieces of lumber to check s...

Page 19: ...red to obtain a straight edge Do not make cuts deeper than 1 8 in a single pass Hold the best face of the workpiece firmly against the fence throughout the feed See Figure 26 Surfacing Jointing the face of stock or surfacing is shown in Figure 27 Adjust the infeed table for depth of cut Cuts of approximately 1 16 at a time are recommended as this allows better control over the material being surfa...

Page 20: ...ork When jointing short or thin pieces use a push block to eliminate all danger to the hands Two push blocks are shipped with your jointer and additional ones stock no 6285917 can be purchased from your distributor or by calling 1 800 274 6848 You can also make your own easily from scrap material Three types of commonly used push blocks are represented in Figure 29 Direction of Grain Avoid feeding...

Page 21: ...s as wax pickup does Lubrication The cutterhead runs in two single row sealed and shielded ball bearings which are pre lubricated for life no maintenance is necessary Occasionally apply a good grade of light grease to areas of the jointer where friction may occur such as when the tables are raised or lowered Cutterhead Repairs The entire cutterhead assembly may be removed for bearing replacement o...

Page 22: ...it is noticeable when cutting they should be turned over or replaced entirely A sharp knife works easier and results in longer blade life The penalty paid for a dull knife is less blade life and greater wear and tear on all parts of the machine An advantage of the helical style cutterhead is that if knife inserts develop nicks these inserts can be individually flipped or replaced without the need ...

Page 23: ...rhead from turning and whet the beveled edge of the knife stroking lengthwise by sliding the stone back and forth across the table Do the same amount of whetting on each of the three knives 6 When finished reset the knives parallel to the outfeed table See Setting Knives Straight Cutterhead If knives cannot be properly retouched as described above they must be ground and re surfaced to a new bevel...

Page 24: ...ainst the grain Cut with the grain whenever possible Dull knives inserts Sharpen or replace knives inserts Feeding workpiece too fast Use slower rate of feed Cutting too deeply Make shallower cuts Chip out Knots imperfections in wood Inspect wood closely for imperfections use different stock if necessary Wood has high moisture content Allow wood to dry or use different stock Fuzzy grain Dull knive...

Page 25: ...the problem then check the amp setting on the overload relay Match the full load amps on the motor as noted on the motor plate If amp setting is correct then there is probably a loose electrical lead Check amp setting on motor starter Building circuit breaker trips or fuse blows Verify that jointer is on a circuit of correct size If circuit size is correct there is probably a loose electrical lead...

Page 26: ...trical connections are correct and properly tight The electrical connections other than the motor are pre assembled and tested at the factory Therefore the motor connections should be double checked as the highest probability for error If problems persist double check the factory wiring On off switch failure If the on off switch is suspect you have two options Have a qualified electrician test the...

Page 27: ...1285 109 Contactor 3Ph 460V 6285917 Push Block Replacement Parts Replacement parts are listed on the following pages To order parts or reach our service department call 1 800 274 6848 between 7 00 a m and 6 00 p m CST Monday through Friday Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately ...

Page 28: ...0A Clamp 1Ph 3 11 6292497 Box Junction 1 12 6292498 Strip Terminal 1 13 TS 081C062 Machine Screw Pan Head Phillips 10 24x1 2 14 TS 0720051 Lock Washer 10 2 15 PJ1696 211 Switch 1 16 PJ1285 116 Hood Dust 1 17 TS 0720071 Lock Washer 1 4 9 18 TS 0050011 Hex Cap Screw 1 4 20x1 2 7 19 6292507 Cover Pulley 1 20 6292508 Bolt 3 22 TS 0561031 Hex Nut 3 8 16 6 23 TS 059303 Cap Nut 3 8 16 3 24 6292510 Door A...

Page 29: ...29 Stand Assembly ...

Page 30: ...t 3 8 16 24 24 6292547 Tube 2 25 6292548 Spring 4 26 PJ1696 509 Spring Holding Bolt 4 27 6292550 Straight Cutterhead Assembly 1 PJ1285 600 Helical Cutterhead Assembly 1 28 TS 1491041 Hex Cap Screw M10x30 2 29 6292551 Infeed Table 1 30 6292552 Lip Table 1 31 TS 1505061 Socket Head Cap Screw M10x40 8 32 6292554 Deflector Dust 1 33 TS 081C062 Machine Screw Pan Head Phillips 10 24x1 5 34 TS 0680011 Fl...

Page 31: ...31 Table Assembly ...

Page 32: ...ot shown 400MFD 250VAC 1 6292563 RC Running Capacitor not shown 50uf 350VAC 1 2 6292513 Pulley 3Ph 1 6294246 Pulley 1Ph 1 3 TS 1525011 Socket Screw Screw M10x10 1 4 6292515 Bracket Motor 1 5 TS 0680041 Flat Washer 3 8 3 6 TS 0720091 Lock Washer 3 8 6 7 TS 0060081 Hex Cap Screw 3 8 16x1 3 4 3 8 TS 0561031 Hex Nut 3 8 16 3 9 6292520 Plate 1 10 6292521 Rod 1 11 TS 2360121 Flat Washer M12 2 12 TS 1540...

Page 33: ...33 Motor Pulley Assembly ...

Page 34: ...583 Shaft 1 4 6292584 Spring 1 5 6292585 Collar Shaft 1 6 TS 0271071 Socket Set Screw 3 8 16x3 4 1 7 TS 0267071 Socket Set Screw 1 4 20x3 4 2 8 TS 0561011 Hex Nut 1 4 20 2 9 6292589 Knob 1 10 TS 0720091 Lock Washer 3 8 2 11 TS 0209031 Socket Head Cap Screw 3 8 16x3 4 2 12 TS 0680041 Flat Washer 3 8 2 13 60B 272 Warning Label 1 ...

Page 35: ...35 Cutterhead Guard Assembly ...

Page 36: ...S 1503051 Socket Head Cap Screw M6x20 6 9 6292572 Pulley 1 10 6292573 Key 8mmx8mmx60mm 1 11 6292574 Pulley Washer 1 12 TS 2361101 Lock Washer M10 1 13 TS 1491021 Hex Cap Screw M10x20 1 14 6292577 Spring 6 15 6292535 Knife set of 3 1 16 6292579 Gib Knife set of 3 1 17 6292580 Gib Screw 18 18 PJ1696 004 Left Bearing Cap Plate 1 19 PJ1696 006 Right Bearing Cap Plate 1 PJ1285 KSGA Knife Setting Gauge ...

Page 37: ...37 Straight Cutterhead Assembly ...

Page 38: ...1503051 Socket Head Cap Screw M6x1 0Px20L 6 9 PJ1696 005 Right Bearing Housing 1 10 BB 6206ZZ Bearing 6206ZZ 2 11 PJ1696 006 Right Bearing Cap Plate 1 12 6292573 Key 8mm x 8mm x 60mm 1 13 6292572 Cutterhead Sheave 1 14 6292574 Pulley Washer 1 15 TS 2361101 Lock Washer M10 1 16 TS 1491021 Hex Cap Screw M10x20 1 17 PJ1696 010 Gib 46 18 PJ1696 011 Carbide Insert Knife Rabbet Sold in pkg of 2 2 19 640...

Page 39: ...39 Helical Cutterhead Assembly ...

Page 40: ... 6292607 Pin 6 20 TS 1523061 Socket Set Screw M6x20 2 21 TS 1540061 Hex Nut M8 4 22 TS 1490031 Hex Cap Screw M8x20 2 23 6292611 Bracket Left 1 24 6292612 Bracket Right 1 25 6292613 Shaft 1 26 TS 2360121 Flat Washer M12 2 27 6292615 Lock Handle 1 28 TS 2331121 Cap Nut M12 1 29 6292823 Spring Pin Ø5x20 1 30 6295359 Clamp Rear 2 31 6295360 Fence 1 32 TS 1540081 Hex Nut M12 1 33 6295362 Rod 1 34 62925...

Page 41: ...41 Fence Assembly ...

Page 42: ...42 Electrical Connections 1 Phase ...

Page 43: ...43 Electrical Connections 3 Phase ...

Page 44: ...44 WMH Tool Group 2420 Vantage Drive Elgin Illinois 60123 Phone 800 274 6848 www wmhtoolgroup com ...

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