Powermatic 1285 User Manual

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Operating Instructions and Parts Manual

12” Jointer

Model 1285

WMH TOOL GROUP

This manual has been prepared for t he owner and operators of a Powermatic Model 1285 Jointer. It s purpose, aside f rom machine oper ation, is to promot e safety using acc epted operati ng and maint enance procedures. To obtai n maximum lif e and effici ency from your jointer and t o aid in using i t safely, please read this manual thoroughly and follow the instruc tions carefully.

Warranty and Service

WMH Tool Gr oup warrants ever y product it sell s. If one of our tools needs s ervice or repai r, one of our Authorized S ervic e Center located throughout the United States can provide quick servi c e or information.

In most cases, a W MH Tool Group Servi ce Center can assist i n authori zing repai r work, obtai ning part s, or perform routine or major maintenance repai r on your Powerm atic product.

For the name of an Aut horized Service Cent er in your area, pl ease call 1-800-274-6848, or vi sit our web site at www.wmhtoolgroup.com

More Information

Remember, WMH Tool Group i s consistently adding new products to the li ne. For complete, up-to-dat e product information, check with your local WMH Tool Group distributor, or visit our web site at www.wmhtoolgroup.com

WMH Tool Group Warranty

WMH Tool Group makes every effort to assure that it s products meet high quality and durability standards and warrants to the original retail consumer/purchaser of our products that each product be free from defects in mat erials and workmanship as foll ows: 1 YEA R LIMITED WARRANTY ON ALL PRODUCTS UNLESS SPECIFIED OTHERWISE. This Warranty does not apply to defects due directly or i ndirectly to misuse, abuse, negl igence or acc idents, norm al wear-and-tear , repair or alterati ons outside our f aciliti es, or to a lack of maintenanc e.

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 YOU. IN NO EVENT SHALL WMH TOOL GROUP BE LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR FOR INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

To take advantage of this warranty, the product or part must be returned for examination, postage prepaid, to an Authorized Service Center designated by our office. Proof of purchase date and an explanati on of the complaint m ust accompany the merchandi se. If our inspecti on discloses a defec t, we will either repair or replace the product at our discret ion, or r efund t he purchase pri ce if we cannot readi l y and quickly provide a repai r or replac ement. We will return the repai red product or replacem ent at WMH Tool Group’s ex pense, but if it is determ ined there i s no defect, or that the def ect resulted f rom causes not within the scope of WMH Tool Group’s warranty, then the user must bear the cost of storing and returning t he product . This warranty gives you specifi c legal ri ghts; you m ay also have ot her ri ghts, which vary from state t o state.

WMH Tool Group sells through distribut ors only. Members of the WMH Tool Group reserve the right to effect at any time, wit hout prior notice, alter ations to parts, fittings and accessory equi pment, which they may deem necessary for any reason whatsoever.

Warranty and Servic e ..............................................................................................................................2

Warning...................................................................................................................................................4

Introduction..............................................................................................................................................7

Specifications ..........................................................................................................................................7

Unpacking...............................................................................................................................................8

Contents of the Shipping Container......................................................................................................8

Assembly.................................................................................................................................................9

Fence Installation.................................................................................................................................9

Switch Arm.........................................................................................................................................10

Dust Hood..........................................................................................................................................10

Grounding Instructions...........................................................................................................................10

Voltage Conversion............................................................................................................................11

Extensi on cords..................................................................................................................................11

Adjustm ents...........................................................................................................................................12

Drive Belt Tension..............................................................................................................................12

Setting Outfeed Table Height.............................................................................................................. 12

Setting Inf eed Table Height (Depth of Cut) .........................................................................................14

Replacing and Setti ng Knives (Straight Cutterhead) ............................................................................14

Replacing Knife Inserts (Helical Cutter head).......................................................................................16

Fence Adj ustments.............................................................................................................................17

Cutter Gu a rd Ten sion.........................................................................................................................18

Operating Controls.................................................................................................................................18

Operation...............................................................................................................................................18

Hand Placement.................................................................................................................................19

Edge Jointing .....................................................................................................................................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 Repair s ............................................................................................................................21

Knife Inserts (Helical Cutterhead) .......................................................................................................22

Whetting Knives (Straight Cutterhead)................................................................................................23

Optional Accessories .............................................................................................................................27

Replacement Parts................................................................................................................................ 27

Parts List: Stand A ssembly.................................................................................................................28

Stand Assembly .................................................................................................................................29

Parts Lis t: Ta b le Assembly.................................................................................................................30

Table Assembly.................................................................................................................................. 31

Parts Li st: Motor Pulley Assembly.......................................................................................................32

Motor Pulley Assembly.......................................................................................................................33

Parts List: Cutterhead Guard Assembly..............................................................................................34

Cutterhead Guard A ssem bly ..............................................................................................................35

Parts List: Str aight Cutterhead Assembly............................................................................................36

Straight Cutterhead Assembly............................................................................................................37

Parts List: Helical Cutterhead Assembly .............................................................................................38

Helical Cutter head A ssem bly..............................................................................................................39

Parts Li st: Fence Assembly................................................................................................................40

Fence Assembly.................................................................................................................................41

Electri c al Connec tions – 1 Phase........................................................................................................... 42

Electri c al Connec tions – 3 Phase........................................................................................................... 43

Warning

1. Read and understand the entire owners manual before attempting assembly or operation.

2. Read and understand the warnings po sted on the m achine and i n thi s manual. Failur e to comply wit h

all of these warnings m ay cause seriou s i njury.

3. Replace the warning labels if they become obscured or removed.

4. This joint er is designed and intended f or use by properl y trained and ex perienced personnel onl y. If

you are not familiar with the proper and saf e oper ation of a jointer, do not use until proper trai ning and knowledge have been obtained.

5. Do not use this j ointer for other than its int ended use. If used f or other purposes, W MH Tool Group

disclaim s any real or i mplied warrant y and h olds itsel f harml ess from any injury t hat may r esult f rom that use.

6. Always wear approv ed safety glasses/face shi elds while using thi s jointer. Ever yday eyeglasses only

have impact resistant lenses; they are not safet y glasses.

7. Before operating t his jointer, remov e tie, rings, watches and other jewelry, and roll sleeves up past

the elbows. Rem ove all l oose clothing and confine long hair. Non-slip footwear or anti - skid floor strips are recommended. Do not wear gloves.

8. Wear ear protector s (plugs or muffs) during extended peri ods of operation.

9. Some dust created by power sanding, sawing, grinding, drilling and other construction activities

contain chemi cals known to cause cancer , bir th defects or other r eproductiv e harm . Some examples of these chemic als are:

• Lead from lead based paint.

• Crystalli ne sil ic a from bricks, cement and other m asonry pr oduc ts.

• Arsenic 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 whil e tired or under the influence of drugs, al c ohol or any m edication.

11. M ak e c er tain the switch is in the OFF position before connecting the machine to the power supply.

12. M ak e c er tain the machine is properly grounded.

13. M ak e all machine adjustments or maintenance with the machine unplugged f r om the power source.

14. Remove adjusting keys and wrenches. Form a habit of checking to see that keys and adjusting

wrenches are removed from the machine before turning it on.

15. Keep saf ety guar ds in pl ace at all tim es when the m achine i s in use, the only excepti on bei ng special

operations such as rabbet c uts which require remov al of the cutter guard. If guards are remov ed for maintenance purposes or special operations, use extreme caution and replace the guards immediately when finished.

16. Check damaged parts. Before further use of the machine, a guard or other part that is damaged

should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving part s, binding of moving parts, br eakage of parts, mounting and any other condi ti ons that m ay affect its operati on. A guard or ot her part that i s damaged shoul d be properly repaired or replaced.

17. P r ov ide for adequate space surroundi ng work area and non-glare, ov er head lighting.

18. K eep the floor around the machi ne cl ean and free of scrap material, oil and grease.

blahblahblah

19. K eep v isitors a safe distance from the work area. Keep ch il dren away.

20. M ak e y our workshop chi ld proof with padlock s, m aster switc hes or by removing starter key s.

21. Giv e your work undivi ded attention. Looking ar ound, carryi ng on a conversation and “ horse-play” ar e

careless acts that can r esul t in serious injury.

22. Maintain a bal anced stance at all times so that you do not fall or lean against t he knives or other

moving part s. Do not over r eac h or use exc essive force to perform any machine oper ation.

23. Use the ri ght t ool at the corr ect speed and f eed r ate. Do not forc e a tool or att achment to do a job for

which it was not designed. T he ri ght tool will do the job better and safer.

24. Use recom mended accessories; improper accessories m ay be hazardous.

25. Mai ntain tools with care. K eep knives sharp and clea n for the best and saf est performance. Foll ow

instructions for lubricating and changing accessories.

26. Turn off the mac hine before cl eaning. Use a brush or compressed air to remov e c hi ps or debris — do

not use your hands.

27. Do not stand on the machine. Serious i nj ur y c ould oc c ur if the mac hine tips over.

28. Never leave the machine r unning unatt ended. Turn the power off and do not leave t he machine until

the cutterhead c omes to a complete stop.

29. Remove loose items and unnecessary work pieces from the area bef or e starting the machine.

30. Nev er surface stoc k less than 12 inc hes long, or 3 inches wide, or 3 inc hes thick wit hout 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 cutt er head. See Figure A.

32. Use ext ra care in the location of the jointer in the

shop. Position the jointer so that potential kicked back stock will strike a wall and not endanger other persons in t he ar ea.

33. Never apply pressure to stock directly over the

cutterhead. This may result in the stock tipping into the cutterhead along with the operator’s fingers. Follow the 3-inch rule. Position hands away from extreme ends of stock, and push through with a smooth, even motion.

34. “Pull -out ” and the danger of ki ck ed back stock can

occur when the work piece has knots, holes, or foreign materials such as nails. It can also occur when the stock is fed against the grain on the jointer. T he grain shoul d run in the sam e directi on you are cutting.

35. It is good practice to move the hands in an

alternate motion from back to front as the work continues through the cut. Nev er pass t he hands directly over the cutter knife. As one hand approaches the kniv es, rem ove it from the stoc k in an arc motion and pl ace it back on the stock in a position beyond t he cutter knife. See Figure B. At all times hold the stock firmly.

igure A

igure B

36. Bef ore attempting to joint or plane, each work piec e must be carefully examined for stock condi tion

and grain ori entation. NOTE: At certain times it may be necessary t o plane against the grai n when working with a swirl grain wood or burls. W ith this type of work the oper ator must use a lesser dept h of cut and a slow rate of feed.

Familiariz e y our self with the following safety notices used in this manual:

This means that if precautions are not heeded, it may result i n mi nor i njur y and/or

possible machine damage.

This means that if precautions are not heeded, it may result i n serious injury or possibly

even death.

- - SAVE THESE INSTRUCTIONS - -

Introduction

This manual is provided by Powermati c covering the safe operat ion and maintenance pr ocedures for a Model 1285 Jointer. This manual contains instructions on installation, safety precautions, general operating proc edures, maintenance i nstructions and part s breakdown. This mac hine has been designed and constructed to pr ovi de years of troubl e free operation if used in accor dance with instr ucti ons set forth in this manual . If ther e are any que sti ons or com m ents, please cont act ei t her your loc al suppl ier or W MH Tool Group. WMH Tool Group can also be reached at our web site: www.wmhtool gr oup.com.

Specifications

Model Number...................................................................................................................................1285

Stock Number (3HP, 1P h, 230V, wit h standar d c utterhead).......................................................... 1791241

Stock Number (3HP, 3P h, 230V/460V*, with standard cutterhead)............................................... 1791249

Stock Number (3HP, 1P h, 230V, with helical cutterhead) ............................................................. 1791307

Stock Number (3HP, 3P h, 230V/460V*, with helical cutterhead)................................................... 1791308

Cutting Capacity (W x D) (in.).................................................................................................. 11-3/4 x 3/4

Cutterhead Speed (RPM)..................................................................................................................5,000

Rabbeting Capaci ty (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 Positiv e Stops (deg. ) ....................................................................................................... 45 and 90

Number of Knives – standard cut terhead .................................................................................................3

Number of Inserts – heli c al c utt er head ........................................................................ 44, with 2 rabbeting

Size of knives – standard cut terhead (L x W x T) (in.)........................................................12 x 13/16 x 1/8

Dust Collecti on Minimum CFM Required..............................................................................................800

Approximate Net Weight (lbs.) .............................................................................................................762

Approximate Shipping Weight (lbs.) .....................................................................................................880

*pre-wired 230V

The above specifications were current at the tim e this manual was published, but because of our policy of continuous im provement, WMH Tool Group reserv es the right to change specif ications at any tim e and without pri or notic e, without incurring obligations.

Unpacking

Open shipping cont ainer and check f or shipping damage. Report any damage immediately to your distributor and shipping agent. Compare the contents of your container with the foll owing parts list to make sure all parts are intact. Missing parts, i f any , should be rep orted to y our distributor. 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 contents of this manual before attempting set-up

or operation! Failure t o co mpl y may cause seri ou s injury.

Assembly

Tools need for assembly:

10mm hex wrench (provi ded) 10-12mm combi nation wrench (provided) forklift or hoist with straps cross-point screwdriver

1. Remove top and sides of crat e from around

the machine.

2. Remove the dust hood and the fence

assembly from the skid. Reach into the stand and remov e the screws securing the stand to the skid.

3. Raise the jointer off the skid with lifting

straps. The straps should be suitable to lift 762 pounds of weight, and shoul d be plac ed under the base casti ng as shown in Figure

1. Do not lift the j ointer under t he infeed and outfeed tabl es.

4. The jointer should be placed on a sturdy,

level floor in a dry area, with sufficient lighting and v entilation. Leave enough room around the machine for loading and offloading stock and routine maintenance work. The mac hine can be f urther stabi lized by bolting it to the floor using lag screws through the holes on the i nsi de 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 met al ar eas of the jointer, i ncl uding

the table and fence surfaces, have been factory coated wit h a prot ectant. This should be removed wit h a soft clot h dampened wit h a solvent such as mineral spirits or kerosene. Do not use ga soline, acetone or lacquer thinner , and do not use an abrasive pad. Do not let solvent contact the plastic parts of the machine, as it may damage them.

Figure 1

Fence Installation

1. Use an assistant to help place the fence

assembly on top the table, aligning the holes in the fence assembly with the holes in the table base, as shown in Fi gur e 2.

2. Use the two socket head cap screws and

two lock washers (Figure 2), and tighten securely with a 10mm hex wrench.

Figure 2

Switch Arm

The arm (Figure 3) on which the push button switch is l oc ated is shipped in the down posi tion. The arm should be pivot ed to upright positi on as shown. Tighten the two screws with a 10mm wrench.

Dust Hood

Before attaching the dust hood, make sure the hole in the dust c hute is concealed by the dust chute cover, as shown in Figure 4.

Mount the dust hood to the jointer stand using the seven 1/ 4 x 1/2 hex cap screws and seven 1/4 lock washers (Figur e 5) .

It is recom mended that a dust coll ection system of at least 800 CFM be connect ed to the jointer’s dust hood, via a 6-inc h diam eter hose.

Grounding Instructions

Electrical connections must

be made by a qualified electrician in compliance with all relevant codes. This machine must be properly grounded to help prevent electrical shock and possible fatal injury.

Figure 3

Figure 4

This machine must be grounded. Grounding provides a path of least resi stance to hel p divert current away from the operator in case of electrical malfunction.

Make sure the voltage of your power supply matches the specif ications on the m otor plate of the machine.

Open the junction box (Figure 6) and connect the wires accordi ng t o the di agram on t he inside of the juncti on box c over. A simi lar diagram can be found at the back of this manual . The green wire (ground) m ust be pr operl y gr ounded.

The Model 1285 may be fitted with an appropriate plug, or be “hard-wired” to an electric al panel. If hard-wired to a panel, mak e sure a disconnect is available for the operator.

Figure 5

Figure 6

If the jointer is to be hard-wired, make sure the fuses have been r emoved or the breakers hav e been tripped i n the circuit t o which the saw will be connected. Place a warning placard on the fuse holder or ci rcuit breaker to prev ent it being turned on while the machine is being wired. Always follow proper Lock-Out/Tag-Out procedures when per forming any wiring on thi s machine.

Voltage Conversion

The Model 1285 Jointer is wired for 1-phase, 230 volt only; or 3-phase, 230/460 v olt. The 3phase model i s pre-wired at the f actory for 230 volt. However, if you wish to convert your 3phase joint er from 230 volt t o 460 volt, proceed as follows:

1. Disconnect machine from power source.

2. Remove cover fr om junction box, and open

the side door on the stand.

3. Change the wires in the junction box by

following the diagram on the inside of the junction box cover, or the di agram found at the back of this manual.

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 1-800274-6848.

5. If you are using a plug on the joi nter’s power

cord, install an appr opr iate 460 volt plug.

6. After wiring f or the new volt age, turn on the

machine and observe the rotation of the cutterhead; it should be clockwise when viewed from the front of machine. If it rotates counterclockwise, disconnect jointer from power source and switch any two of the three wires at t he junc tion box.

7. Close junction box and r ec onnec t power.

Extens ion cords

The use of an extension cord is not recommended, but if one is necessary make sure the cord rati ng i s suit able f or t he amperage listed on the machine’s motor plate. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.

Figure 7

Use the chart in Fi gure 8 as a general guide in choosing the cor rect size cord. If in doubt, use the next heavi er gauge. The smaller t he gauge number, the heavier the cord.

Figure 8

Adjustments

Disconnect jointer from

power supply before makin g ad ju st ments.

Drive Belt Tension

To check the tension of t he drive belts:

1. Rem ove the thr ee cap nuts and fl at washers

on the pulley cover with a 9/ 16 wrench, and remove the guard to expose the belts and pulleys. S ee Figure 9.

NOTE: The hex nuts and flat washers on the threaded rods (A, Figure 9) should be left in place; they keep t he pulley cover from bending as it is being ti ghtened back into place with the cap nuts.

2. There should be a small amount of

deflection in the belt when pressing it midway between the pul leys with moderate finger pressure (Figure 10).

3. If the belts need ti ght ening, loosen the l ower

hex nut (A, Figure 11) on the motor base with a 19mm wrench.

Figure 9

4. Turn the top hex nut (B, Figure 11)

clockwise until proper tension is achiev ed.

5. Retighten lower hex nut (A, Figure 11). NOTE: The belts should be inspected again

after the first f ew 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 tabl e must be exactly level with the knives/insert s at thei r highest poi nt of rev olution. The outfeed table on t he Model 1285 has been pre-set at the factory to the proper height in relation to t he cutterhead. Howev er, the level of the outf eed table should be checked i n case of slight misadjustment during shipping. Outfeed table height should also be inspected after resetting or replac ing knives/inserts.

1. The outfeed table has a stop screw (A,

Figure 12) whic h, when contact ing the edge of the table as shown, will ensure the outfeed tabl e is at the proper height . Loosen the handwheel (C, Figure 12) and raise the outfeed tabl e adjustment arm (D, Figure 12) until thi s stop screw (A, Fi gure 12) contact s the edge of the table as shown.

Figure 10

Figure 11

Figure 12

2. Place a straight edge on the outfeed table

and extending over the cutterhead, as shown in Figure 13.

3. Rock the cut terhead slightly so that a knife

tip contacts the st raight edge. If the knif e tip just contacts the straight edge without moving the straight edge, then the outfeed table is at the pr oper height. If the knife tip pushes up the straight edge, the outfeed table is too low. If the knife tip does not contact the str aight edge, the outfeed tabl e is too high.

4. To raise the height of the outfeed table,

loosen the hex nut (B, Fi gure 12) and rotate the stop scre w (A, Figure 12) cl ockwise. To lower the height of the outfeed table, rotat e the stop 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 f or speci al operations.

As a final check of the outf eed tabl e adjustment , turn on the jointer and run a scrap piece of wood slowly over the knives for 6 to 8 inches; the wood should rest firmly on both tables, as shown in Fi gure 14, with no open space under the finished cut.

If the outfeed table is too high, the finished surf ace of the workpiece will be curved (Figure

15).

Figure 13

Figure 14

Figure 15

If the outf eed tabl e i s too l o w, the workpiece wil l be gouged at the end of the cut (Fi gur e 16) .

Make further changes to the stop screw if necessary to ensure the outfeed table is level with the knives/inserts.

Figure 16

Setting Infeed T able Height (Depth of Cut)

1. To set t he cutting depth, loosen handwheel

(A, Figure 17) by turning counterclockwise.

2. Move table adjustment arm (B, Figure 17)

up or down to raise or lower infeed table. The pointer (C, Figur e 17) shows the depth of cut on the adjoining scale.

3. Tighten handwheel securely (A, Figure 17). The stop screw (D, Figure 17) on the infeed

table should be set so that when it cont acts the table, t he infeed table will be ex actly level with the knives (wit h the scale pointer at zero). The setting of this stop screw has bee n made at the factory, but should be checked by the operat or before using the jointer. It should also be checked occasionally as the machine receives use.

Use the same procedure as for the outfeed table, placing the straightedge across outfeed table, cutterhead and infeed table. Loosen the hex nut (E, Figure 17) and adjust t he stop screw (D, Figure 17) as necessary. When finished, retighten hex nut (E, Figure 17).

If the infeed t abl e is lev el wit h the kniv es but the scale pointer (C, Figure 17) appears to be off, loosen the scale poi nter with a screwdriv er and adjust it as needed unti l it reads zero. Ret ighten the screw.

Replacing and Setting Knives (Straight Cutterhead)

Figure 17

Jointer knives are very

sharp. Use care and proceed slowly when working with or around the cu t t erhead .

After a period of use, dull knives should be reground or repl aced. Remove the pul ley cover at the rear of the machine – this will allow you to rotate the cutt erhead by using the belts.

To remove a knife:

1. Disconnect machine from power source.

2. Back the f ence away f rom the cutt erhead as

far as it will go. Lower infeed and outfeed tables.

3. Tur n the six gib screws (Figure 18) into t he

gib with a 10mm wrench. A s the pressure of the gib is released, the two springs in the cutterhead slot wil l c ause the k nife to rise.

4. Carefully remove the knife from the

cutterhead.

Figure 18

5. It is recommended when replacing knives

that you clean the knife slots in the cutterhead. Rem ove the gib along with the gib screws, and remove the two springs. Clean the cutterhead slot of any debris or dust that might prevent the knife from seating properly. Also clean the gib, gib screws, and spring s. Closely i nspect the gi b screws – if the threads appear worn or stripped, or if the heads are becoming rounded, replac e the screws.

6. Re-insert the springs and the gib.

7. Place t he new or resharpened k nif e into t he

slot as shown in Fi gure 18, maki ng sure the direction of the knife is correct.

8. Place the knife setting gauge (provided)

upon the cutterhead and centered over a knife, as shown in Figure 19. Make sure the feet of the knife setting gauge rest solidly upon the cutterhead and that its handle is parallel t o the c utt erhead. T he gauge i s now holding the knife at proper depth.

9. While keeping the knife setting gauge in

place, tighten t he 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 f or the other two

knives in the cutterhead. Make the gib screws just ti ght enough to hold the kniv es in position.

With all three jointer knives in the cutterhead, the knives should now be tightened incrementally to prevent any buckling or distortion of the cutterhead. Proceed as foll ows:

11. Rotate the c ut terhead to each knife in turn,

tightening the gib screws a little more (center screws first, then toward the end screws). Do this at least twice; on the final rotation, fi rmly tighten all gib screws.

After replaci ng and checking

knives, check again carefully. Make certain the direction of knives is correct, and all eighteen gib screws are tightened securely. Loose gib screws can result in knives being thrown from the cutterhead, causing severe damage to the machi ne and po ssible serio us or fatal injury to the operator or bystanders.

Figure 19

Replacing Knife Inserts (Helical Cutterhead)

Jointer kni fe inserts are very

sharp. Use care and proceed slowly when working with or around the cu t t erhead .

The helical cutterhead is a solid steel design that holds 44 two-sided knife inserts, and two rabbet knif e inserts on the outboard end of the cutterhead. Replacing knife inserts is a simple process, and they will seat themselves properly without having to be set with a knife gauge.

After a period of use, dul l knife inserts should be flipped over to present a new edge. If both edges are worn, knife inserts should be replaced.

1. Loosen the gib screw (A, Figure 20).

2. Rem ove the knife insert ( B, Figure 20) with

the gib (C, Figure 20) f r om its slot .

3. Make sure t he slot (D, Fi gure 20) is free of

dust and debris that would prevent the gib and insert from seating properly. Wipe out the slot and clean wit h solvent if needed.

4. Flip the knife insert 180 degree s and place it

onto the two pins of t he 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 c utt erhead should be f lipped at the same time. Of course, if an insert is nicked or damaged, it can be flipped or replaced individually as needed.

After install ing a knife insert, be sure to ti ghten the gib screw befor e m oving on to t he next knife insert.

Figure 20

Figure 21

Make certain the direction of

knife inserts is correct, and all gib screws are tightened securely. Loose gib screws can result in kn ife insert s being thrown fro m the cutterhead, causing severe damage to the machine and possible serious or fatal injury to t he ope r a tor or by s t a n de r s .

Fence Adjustments

The fence (A, Figure 22) tilts backward and forward to 45 degrees. I t has a 90-degree stop (B, Figure 22) and a 45-degree stop (C, Figure

22).

To tilt fence forw ard:

1. Loosen the lock handl e (D, Figure 22) and

tilt the fence forward using the handle (E, Figure 22). NOTE: Lift up slightly on the fence while tilting it, to prevent scratching the table surface.

2. Retighten lock handle (D, Figure 22).

To tilt fence backw ard:

1. Loosen the lock handl e (D, Figure 22) and

pivot the stop bl oc k (F , Fi gure 22) out of the way.

2. Tilt the fence using the handle (E, Figure

22). NOTE: Lift up slightly on the fence while tilti ng it to prevent scratching the t able 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 desi red position is reached, securel y

tighten lock handle (G, Figure 22).

To check and adjust the 90-d egree stop :

1. Loosen lock handle (D, Figure 23) and tilt

fence until the stop screw (B, Figure 23) contacts the stop block (F, Figure 23).

Figure 22

2. Place a square or machini st’s protractor (not

provided) on t he table and flush against t he fence surface. S ee Figure 23.

3. If adjustment is necessary, loosen the hex

nut on the stop screw (B, Figure 23) and turn the stop screw as needed until the fence is flush with your square.

4. Retighten the hex nut .

Figure 23

To check and adjust the 45-d egree stop :

1. Loosen lock handle (D, Figure 22) and tilt

fence until it contacts the 45-degr ee stop (C, Figure 22).

2. Place a machinist’s protractor or similar

device set at 45 degrees on the table and against the fence.

3. If adjustment is necessary, loosen the hex

nut on the stop screw (C, Figure 22) and turn the stop screw until the fence is flush with the protr actor .

4. Retighten the hex nut .

Cutte r Guard Tension

The tension of the guard (Figure 24) must always be suffic ient during jointer operations to cause the guard to conceal the unused part of the cutterhead, and to s wing back t o cont act t he fence after the workpiece has cleared the cutterhead. To adjust the guard tension:

1. Loosen the knob shown in Figure 24 and

push the knob to the ri ght to incr ease 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 y ou are inexperienced at jointing, use scrap pieces of lumber to c hec k set tings and get the feel of operati ons before attem pting regular work.

Always use the guard

whenever possible and keep hands away from cutterhead. Failure to comply may cause serious injury.

Ideally, the fence should be moved forward (toward the f r ont of the m achine) to ex pose only the amount of cutterhead needed for the workpiece.

Figure 24

Figure 25

TIP: If workpieces of the same size are constantly bei ng run on the joi nter, the operator may wish to occasionally adjust the fence forward or backward to prevent wear on only one area of the knives.

Hand Placement

At the start of the cut, the left hand holds the workpiece firmly against the infeed table and fence, while the right hand pushes the workpiece toward the knives. After the cut is under way, the j ointed surf ace of the workpi ece rests firmly on the outfeed table. The left hand should press down on this part, at the same time maintaining flat contact of the workpiec e with the fence. The right hand pushes the workpiece forward and before the right hand reaches the cutterhead, the right hand shoul d be moved to the workpiece on the outfeed table. The workpiece is then pushed on through to complete the cut. Follow the 3-inch rule (see page 5). Never pass hands directly over the cutterhead.

Edge Jointing

This is the most common operation for the jointer. S et the fence to the 90-degree stop and thus square with the t able. Depth of cut should be the minimum required to obtain a straight edge. Do not m ake cuts deeper than 1/8” in a single pass. Hol d the be st f ace of t he workpiec e firmly against the fence throughout the feed. See Figure 26.

Surfacing

Figure 26

Jointing the fac e of stock, or surfacing is shown in Figure 27. Adjust the infeed tabl e for depth of cut. Cuts of approximately 1/16” at a time are recommended, as this allows better control over the material being surfaced. More passes can then be made to reach the desir ed depth.

Always use a hold-down or

push block when surfacing short stock or stock less than 3 inches thick. Figure 26 shows push blocks being used fo r surfacing.

Rabbeting

A rabbet is a groove cut along the edge of a workpiece. See Figure 28. The width and thickness of the workpiece used will be dependent upon the de sired width and l ength of the rabbet. However , never rabbet a workpiece less than 12 inches long.

A rabbet cut requires

removal of the cutterhead guard. Use extreme caution and keep hands clear of cutterhead. Always replace guard immediately after rabbeting operation is completed.

Figure 27

Figure 28

Use push blocks to rabbet cut whenever possible. The rabbeting capacity is 3/4”.

1. Disconnect machine from power source.

2. Set fence for desir ed width of rabbet.

3. Check width of the r abbet by m easuring the

distance from the end of a knife in the cutterhead to the fence.

4. Reconnect power. Lower the infeed table

1/32” at a time and make successive cuts until the desired depth of rabbet has been obtained. See F igure 28. NOTE : It is easier and safer to take a seri es of shall ow cuts.

Jointing Warped Surfaces

If the wood to be jointed is di shed or warped, take light cuts until the surface is flat. Avoid forcing such material down against the tabl e; excessive pressure will spring it while passing the knives, and it will spring back and remain curved after the cut is completed.

Jointing Short or Thin Work

When jointing short or thin pi eces, use a push block to elimi nate all danger to t he hands. Two push blocks are shipped with your jointer, and additional ones (stock no. 6285917) can be purchased fr om your distri butor or by calling 1800-274-6848. You can also make your own easily from scrap material. Three types of commonly used push block s are represented in Figure 29.

Direction of Grain

Avoid feeding work into the jointer against the grain. This will result in chipped and splintered edges. See Figure 30. Feed with the grain to obtain a smooth surfac e, as shown in Figure 31.

Beveling

To cut a bevel, lock the fence at the required angle and run t he workpiece across the kniv es while keeping it firmly against the fence and tables. Several passes may be necessary to achieve the desi r ed r esul t.

Figure 29

Figure 30

While the fence can be tilt ed in or out for bevel cutting, it is recommended for safety reasons that the f ence be ti lted i n toward the operat or, i f possible, making a cradled cut.

Figure 30

Maintenance

Disconnect machine from

power source before performing any maintenance. Failure to comply may cause serious injury.

Check all screws and f astener s occasionally and keep them tightened secur ely.

Inspect cords; a cord t hat is frayed or dam aged in any way should be replac ed immediately.

The table and fence surfaces must be kept clean and free of rust for best results. Some users prefer a paste wax c oating. Another opti on is talcum powder applied with a blackboard eraser rubbed in vigorously once a week; this will fill casting pores and form a moisture barrier. This method provides a table top that is slick and allows rust ri ngs to be easil y wiped from the surface. Important also is the fact that talcum powder will not stain wood or mar finishes as wax pickup does.

Lubrication

The cutterhead runs in two single-row sealed and shielded ball bearings, which are prelubricated for life - no maintenance is necessary.

Occasionally apply a good grade of light grease to areas of the joint er where fricti on may occur, such as when the tables are raised or lowered.

Cutterhead Repairs

The entire cutterhead assembly may be removed for bearing replacement or other cutterhead maintenance procedures. The procedure is identical for both helical and straight cutt er heads.

To remove the cutterhead:

1. Disconnect machine from power source.

2. Remove rabbeti ng ledge and fence.

3. Lower infeed and outfeed tables until they

are clear of the cutterhead.

4. Remove belts.

5. Remove the two hex cap screws and lock

washers that hold t he cutterhead to the bed – these are accessed fr om the underside of the bearing block s as shown in Figure 32.

Before removing cutterhead,

wrap it with several cloths to prevent perso nal inju r y .

Figure 32

6. Slide the cutt er head out the rabbeting side.

7. Loosen hex cap screw (A, Figure 33) and

remove pulley (B, Figure 33) and key (C, Figure 33).

8. Loosen screws (D, Figure 33) on both sides

and remove bearing cap plates (E, Figure

33). NOTE: Figure 33 shows the pulley end of

the cutterhead. The procedure is sim ilar for breaking down the opposite end of the cutterhead - refer to assembl y drawing on page 39 for the specifi c parts.

IMPORTANT: If the bearings (G, Figure 33) need replacement, it is strongly recommended this be done by qualif ied service personnel . The bearings are press f itted and must be removed with an arbor press.

9. To re-install the cutterhead, reverse the

above procedure. NOTE: Before reinstalling, make sure the machine’s curved seats of the base casting are free of dirt, dust or grease, whi c h will help ensure a ti ght fit.

Knife Inserts (Helical Cutterhead)

When knife insert s become dull enough so that 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 pai d for a dull k nife is less blade l if e and greater wear and tear on all parts of the machine.

An advantage of the helical style cutterhead is that if knif e inserts develop nicks, these insert s can be individually flipped or replaced without the need to disturb the other inserts. See “Replacing Knife Inserts (Helical Cutterhead)” for this procedure.

If the jointer is used oft en, keeping a spare set of knife inserts on hand is recom mended. Knife inserts (stock no. 6400013) may be ordered from your authorized Powermatic distributor or by calling 1-800-274- 6848.

Gum and pitch which c ollect on the knif e inserts cause excessiv e friction as the work cont inues, resulting in overheating of the inserts, less efficient cutting, and consequent loss of blade life. Use "Gum and Pitch Remover" or oven cleaner, to carefully wipe off the knife inserts.

Figure 33

Jointer kni fe inserts are very

sharp. Use care and proceed slowly when working with or around the cu t t erhead .

Whetting Knives (Straight Cutterhead)

When knives become dull enough so that it is noticeable when cutting, they should be resharpened or repl aced. A sharp knif e will work easier and last longer. The penalty paid for a dull knif e is less blade life and greater wear and tear on all parts of t he machine.

Jointer knives are very

sharp. Use care and proceed slowly when working with or around the cu t t erhead .

1. Disconnect machine from power source.

2. Rem ove the pulley cover so you can r otate

the cutterhead by means of t he belts.

3. Use a fine carborundum stone. Cover it

partly wit h paper, as shown in Fi gure 34, to avoid marking the table.

4. Lay t he stone on the i nf eed table. Adjust the

infeed table and t urn the cutter head until t he stone lies f lat on the bev el of the knife and flat on the infeed table.

Figure 34

5. Hold the c utterhead from turning, and whet

the beveled edge of the knife, stroking lengthwise by sliding the stone back and forth across the tabl e. Do the same amount of whetting on each of the thr ee k niv es.

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 resurfaced to a new bevel edge. Check in the phone directory under “Sharpening Service” or “Tool Grinding or Sharpening.” It may be less expensive to purchase a new set of knives. If the joint er is used often, keeping a spare set of knives on hand is recomm ended.

Knives (stock no. 6292535) may be ordered from your authorized Powermatic distributor or by calling 1-800-274- 6848.

Gum and Pitch which collect on the knives cause excessiv e friction as the work cont inues, resulting in overheating of the knives, less efficient cutting, and consequent loss of blade life. Use "Gum and Pitch Remover" or oven cleaner, to carefully wipe off the knives.

Troubleshooting – Operating Problems

Trouble Probable Cause Remedy

Finished stock i s concave on back end.

Finished stock i s concave on front end.

Finished stock i s concave in the middle.

Ends of finished stock are cut more than the middle.

Knife is higher than outfeed table.

Outfeed table is higher than knife.

Both tables have t oo much end f all . Raise both table ends using the

Table ends are rai sed hi gher than t he middle.

Raise outfeed table until it aligns with tip of knife. (see page 13)

Lower outfeed table until it aligns with tip of knife. (see page 13)

adjustment screws below the t ables (see Figure 35).

Figure 35

Lower both table ends using the adjustment screws under the tables (see Figure 35).

Chip out.

Fuzzy grain.

Cutterhead slows while operating.

“Chatter” marks on workpiece.

Cutting against the grain. Cut with the grain whenev er possible. Dull knives/i nsert s. Sharpen or replac e k niv es/inserts. Feeding workpiec e too fast. Use slower rate of feed. Cutting too deepl y. Make shallower cuts.

Knots, imperfections in wood.

Wood has high moistur e c ontent. Allow wood to dry or use diff er ent stock. Dull knives/i nsert s. Sharpen or replac e k niv es/inserts. Feeding workpiec e too quickly, or

applying too much pressure to workpiece.

Knife/inserts incorrectly set.

Feeding workpiec e too fast.

Inspect wood closely for imperfections; use different stock if necessary.

Feed more slowly, or appl y l ess pressure to workpiece.

Set knives properl y usi ng pr ov ided k nife setting gauge (straight cutterhead onl y – see page 15). Check that insert sl ots are clean and free of dust or debri s (helical cutterhead only).

Feed workpiece slowly and consistently.

Trouble Probable Cause Remedy

Uneven knife marks on workpiece.

Knives/inserts are knicked, or out of alignment.

Replace knicked k nives/inserts; align knives properl y with knife-setting gauge (straight c utt er head only).

Troubleshooting – Mec hanical and Elect rical Problems

Trouble Probable Cause Remedy

Machine will not start/restart or repeatedly t rips circuit breaker or blo ws fu ses.

No incoming power.

Overload aut omatic reset has not reset.

Jointer frequently trips.

Building circuit breaker trips or fuse blows.

Motor starter failure.

Verify unit is connected to power, and on-switch i s pushed in com pletely.

When jointer overloads on the circuit breaker built into the motor starter, it takes time for the machine to cool down before restar t. Allow unit to adequately cool bef ore attempting restart. If pr oblem persists, check amp setting on the mot or start er inside the electrical enclosure.

One cause of overl oading trips which are not electric al in nature is too heavy a cut. The solution is to take a lighter cut. If too deep a c ut is not t he problem, then chec k the amp setting on the overload rel ay . Match the full load amps on the motor as noted on the mo tor plate. If amp se tting is correct then ther e is probably a loose electric al lead. Check amp setting on motor starter.

Verify that jointer is on a circuit of correct size. If circuit size is correct, there is probabl y a loose el ectr ic al lead. Check amp setting on motor starter.

If you have access to a voltmeter, you can separate a starter f ailure from a motor fai lu re by fi r st, verify ing incoming voltage at 220+/-20 and second, checking the voltage between starter and motor at 220+/-

20. If incoming voltage is incorrect, you have a power supply problem. If voltage between start er and m otor is incorrect, y ou hav e a starter pr oblem. If voltage bet ween start er and m otor is correct, you hav e a motor pr oblem .

Motor overheat ed.

Clean motor of dust or debri s to allow proper air circulation. Allow motor to cool down before r estar ting.

Trouble Probable Cause Remedy

Motor failure.

Miswiring of the unit.

On/off switch failure.

If electri c mot or i s suspect, you have two options: Have a qualified electrician test the motor for function or remove the motor and take it t o a qualified elec tric motor repair shop and have it tested.

Double check to confirm all electrical connections are cor r ec t and properly tight. The elect ri c al c onnec tions 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 c hec k the factory wiring.

If the on/off switch is suspect, you have two options: Hav e a qualified electrician test the switch for function, or purchase a new on/off switc h and establish if that was the pr oblem on changeout.

Optional Accessori es

6292535 12” Jointer Knives (set of 3) 6400013 Carbide Insert Knives for Heli c al Head (set of 10) PJ1696-011 Rabbet Inserts for Helic al Head (set of 2) PJ1285-109 Contactor, 3P h, 460V 6285917 Push Block

Replacement Parts

Replacement part s are li sted on the f ollowing page s. To order par ts or reac h our servi ce depar tment, 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 quic kly and accurately.

Parts List: Stand Assembly

Index No. Part No. Description Size Qty

1...............PJ1285-101............. Stand........................................................... .........................................1

2...............TS-0680041............ Flat Washer.................................................3/8”...................................4

3...............TS-0720091............ Lock Wash e r ................................................3/8”...................................4

4...............TS-0060051............ Hex Cap Screw............................................3/8”-16x1”.........................4

5...............6292491.................. Cover, Dust Chute....................................... .........................................1

6...............TS-081C022............ Machine Screw, Pan Head, Phillips..............#10-24x3/8”....................... 5

7...............6292493.................. Motor Assembly, Motor With Pulley..............3HP, 3Ph..........................1

................. 6295366.................. Motor Assembly, Motor With Pulley..............3HP, 1Ph..........................1

8...............6292494.................. Plate, Switch................................................ .........................................1

9...............6295112.................. Contactor.....................................................1Ph ...................................1

................. 6292495.................. Contactor.....................................................3Ph, 230V.........................1

................. PJ1285-109............. Contactor.....................................................3Ph, 460V.........................1

10.............PJ1285-110............. Clamp..........................................................3Ph...................................3

................. PJ1285-110A .......... Clamp..........................................................1Ph...................................3

11.............6292497.................. Box, Junction............................................... .........................................1

12.............6292498.................. Strip, Ter m ina l............................................. .........................................1

13.............TS-081C062............ Machine Screw, Pan Head, Phillips .............#10-24x1” .........................2

14.............TS-0720051............ Lock Wash e r................................................#10...................................2

15.............PJ1696-211............. Switch.......................................................... .........................................1

16.............PJ1285-116............. Hood, Dust .................................................. .........................................1

17.............TS-0720071............ Lock Wash e r................................................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, Access............................................... .........................................1

25.............6292511.................. Hand Assembly ........................................... .........................................1

26.............PJ1285-126............. Washer........................................................3/8”x3/4 OD......................1

27.............PJ1696-210............. Switch Arm .................................................. .........................................1

28.............TS-1533052............ Machine Screw, Pan Head, Phillips..............M5x16...............................2

29.............PJ1285-129............. Switch Cord................................................. .........................................1

30.............PJ1285-130............. Motor Cord ..................................................1Ph...................................1

................. PJ1285-130A .......... Motor Cord..................................................3Ph...................................1

31.............PJ1285-131............. Power Cord .................................................1Ph...................................1

................. PJ1285-131A .......... Power Cord .................................................3Ph...................................1

32.............3312341.................. Powermatic Logo......................................... .........................................1

Stand Assembly

Parts List: Table Assembly

Index No. Part No. Description Size Qty

1...............6292525.................. Base............................................................ .........................................1

2...............6292526.................. Bar, Tabl e Raising Link................................ .........................................2

3...............6292527.................. Bracket........................................................ .........................................2

4...............TS-0680041............ Lock Wash e r ................................................3/8”...................................8

5...............TS-0209051............ Socket Head Cap Screw..............................3/8”-16x1”.........................4

6...............6292530.................. Bushing....................................................... .........................................8

7...............6292531.................. Support........................................................ .........................................8

8...............6292532.................. Bushing....................................................... .........................................8

9...............6292533.................. Axis, Pivot.................................................... .........................................4

10.............6292534.................. Screw.......................................................... .........................................2

11.............TS-0680061............ Flat Washer.................................................1/2”...................................2

12.............6292536.................. Handwheel .................................................. .........................................2

13.............6292537.................. Handle......................................................... .........................................2

14.............TS-0209061............ Socket Head Cap Screw ..............................3/8”-16x1-1/4”...................4

15.............TS-1490041............ Hex Cap Screw............................................M8x25...............................2

16.............TS-1540061............ Hex Nut.......................................................M8 ....................................4

17.............6292540.................. Knob............................................................ .........................................2

18.............6292541.................. Axis, Pivot.................................................... .........................................8

19.............TS-0208071............ Socket Head Cap Screw ..............................5/16”-18x1-1/4”.................8

20.............6292543.................. Bar,Table Raising Link................................. .........................................2

21.............6292544.................. Axis, Pivot.................................................... .........................................4

22.............6292545.................. Screw.......................................................... .........................................8

23.............TS-0561031............ Hex Nut.......................................................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............ Flat Washer.................................................3/16”.................................5

35.............TS-0560071............ Hex Nut.......................................................#10-24 ..............................5

36.............6292558.................. Outfeed Table.............................................. .........................................1

37.............6292559.................. Lip,Table...................................................... .........................................1

38.............6292560.................. Guard Assembly.......................................... .........................................1

39.............TS-2361101............ Lock Wash e r................................................M10..................................2

40.............PJ1285-240............. Pointer......................................................... .........................................1

41.............PJ1285-241............. Scale........................................................... .........................................1

42.............TS-0680011............ Flat Washer.................................................3/16”.................................1

43.............TS-081C022............ Machine Screw, Pan Head, Phillips..............#10-24x3/8”.......................1

44.............TS-0680041............ Flat Washer.................................................3/8”.................................24

45.............TS-0271051............ Socket Set Screw ........................................3/8”-16x1/2”......................4

46.............TS-0271031............ Socket Set Screw ........................................3/8”-16x3/8”......................4

47.............TS-0561011............ Hex Nut.......................................................1/4”-20..............................4

48.............6285917.................. Push Block .................................................. .........................................2

49.............PJ1285-249............. Set Screw....................................................M8x35...............................2

Table Assembly

Parts List: Motor Pulley Assembly

Index No. Part No. Description Size Qty

1...............6292512.................. Motor...........................................................3HP 3Ph...........................1

................. 6292512-MF............ Motor Fan (not shown) ................................ .........................................1

................. 6292512-MFC......... Motor Fan Cover (not shown) ...................... .........................................1

................. 6292563.................. Motor...........................................................3HP 1Ph...........................1

................. 6292563-MF............ Motor Fan (not shown) ................................ .........................................1

................. 6292563-MFC......... Motor Fan Cover (not shown) ...................... .........................................1

................. 6292563-CS............ Centrifugal Switch (not shown) .................... .........................................1

................. 6292563-SC............ Starting Capac itor (not 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 Wash e r ................................................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-1540081............ Hex Nut.......................................................M12 ..................................8

13.............TS-1525021............ Socket Set Screw ........................................M10x12.............................1

14.............6295367.................. Belt, 1PH.....................................................A-53..................................2

................. 6295357.................. Belt, 3PH.....................................................A-55..................................2

15.............PJ1285-315............. Key..............................................................8mmx 7mm x 55mm..........1

Motor Pulley Assembly

Parts List: Cutterhead Guard Assembly

Index No. Part No. Description Size Qty

1...............6292581.................. Ledge, Rabbet............................................. .........................................1

2...............6292582.................. Guard.......................................................... .........................................1

3...............6292583.................. 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 Wash e r................................................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

Cutterhead Guard Assembly

Parts List: Straight Cutterhead Assembly

Index No. Part No. Description Size Qty

................. 6292550.................. Cutterhead Assembly (It em s 1 thru 19)………..........................................

1...............6292561.................. Cutterhead .................................................. .........................................1

2...............PJ1696-002............. Left Bearing Housing ................................... .........................................1

3...............BB-6204ZZ..............Bearing ....................................................... 6204ZZ .............................2

4...............PJ1696-005............. Right Bearing Housing................................. .........................................1

5...............BB-6206ZZ..............Bearing........................................................6206ZZ.............................2

6...............6292566.................. Bearing Wash er........................................... .........................................1

7...............TS-1490031............ Hex Cap Screw............................................M8x20...............................1

8...............TS-1503051............ Socket Head Cap Screw..............................M6x20...............................6

9...............6292572.................. Pulley.......................................................... .........................................1

10.............6292573.................. Key..............................................................8mmx8mmx60mm ............1

11.............6292574.................. Pulley Washe r............................................. .........................................1

12.............TS-2361101............ Lock Wash e r................................................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 Assembly (Items 20 thru 23) ....................................

20.............PJ1285-520............. Handle......................................................... .........................................1

21.............PJ1285-521............. Setting Gauge.............................................. .........................................2

22.............TS-1482051............ Hex Cap Screw............................................M6x25...............................2

23.............TS-2361061............ Lock Wash e r................................................M6....................................2

Straight Cutterhead Assembly

Parts List: Helical Cutterhead Assembly

Index No. Part No. Description Size Qty

................. PJ1285-600............. Cutterhead Assembly (It em s 1 thru 22)… ……..........................................

1...............PJ1285-601............. Cutterhead................................................... .........................................1

2...............PJ1696-002............. Left Bearing Housing ................................... .........................................1

3...............BB-6204ZZ..............Ball Bearing.................................................6204ZZ.............................2

4...............6292566.................. Bearing Wash er........................................... .........................................1

6...............TS-1490031............ Hex Cap Screw............................................M8x20...............................1

7...............PJ1696-004............. Left Bearing Cap Plate................................. .........................................1

8...............TS-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 Washe r............................................. .........................................1

15.............TS-2361101............ Lock Wash e r................................................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.............6400013.................. Carbide Insert Knife (Sold in pkg of 10)........ .......................................44

20.............PJ1696-012............. Gib Nut ........................................................ .......................................46

21.............PJ1696-013............. Gib Screw.................................................... .......................................46

ʳ2xʳ

22.............PJ1696-015............. Gib Pin........................................................

8.............................92

Helical Cutterhead Assembly

Parts List: Fence Assembly

Index No. Part No. Description Size Qty

1...............6292592.................. Support, Fence............................................ .........................................1

2...............6292593.................. Bracket........................................................ .........................................1

3...............6292594.................. Column, Ge a r.............................................. .........................................1

4...............6292595.................. Guard.......................................................... .........................................1

5...............TS-1503031............ Socket Head Cap Screw..............................M6x12...............................2

6...............TS-1550071............ Flat Washer.................................................M10..................................4

7...............TS-2361101............ Lock Wash e r ................................................M10..................................4

8...............TS-1491041............ Hex Head Bolt .............................................M10x30.............................2

9...............TS-1505041............ Socket Head Cap Screw..............................M10x30 ............................ 2

10.............6292601.................. Shaft,Gear .................................................. ......................................... 1

11.............6292602.................. Handwheel .................................................. .........................................1

12.............6292603.................. Lock Handle ................................................ .........................................1

13.............6295358.................. Collar........................................................... .........................................1

14.............6292604.................. Bolt ............................................................. ......................................... 1

15.............TS-0720111............ Lock Wash e r................................................1/2”...................................2

16.............6295886.................. Socket Head Cap Screw..............................1/2”-12NCx1-1/4”..............2

17.............6292605.................. Bracket, Fence............................................ .........................................1

18.............6292606.................. Support........................................................ .........................................1

19.............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.............6292540.................. Knob............................................................ .........................................1

35.............6295364.................. Block........................................................... .........................................1

36.............6295365.................. Bushing....................................................... .........................................1

37.............TS-2361081............ Lock Wash e r................................................M8....................................1

38.............TS-1490061............ Hex Cap Screw............................................M8x35...............................1

39.............PJ1285-739............. Cover........................................................... .........................................1

40.............PJ1696-105............. Block........................................................... .........................................1

41.............TS-1501051............ Socket Head Cap Screw ..............................M4x16...............................1

42.............TS-1523041............ Socket Set Screw ........................................M6x12...............................1

43.............TS-1540071............ Hex Nut.......................................................M10 ..................................1

44.............TS-1550061............ Flat Washer.................................................M8....................................1

45.............TS-1490061............ Hex Cap Screw............................................M8x35...............................2

46.............TS-1505021............ Socket Head Cap Screw ..............................M10x20.............................4

Fence Assembly

Electrical Connections – 1 Phase

Electrical Connections – 3 Phase

WMH Tool Gr ou p

2420 Vantage Drive

Elgin, Illinois 60123

Phone: 800-274-6848

www.wmhtoolgroup.com

Powermatic 1285 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

12” Jointer

Warranty and Service

Table of Contents

Specifications

Unpacking

Assembly

Fence Installation

Switch Arm

Dust Hood

Grounding Instructions

Adjustments

Drive Belt Tension

Setting Outfeed Table Height

Replacing and Setting Knives (Straight Cutterhead)

Replacing Knife Inserts (Helical Cutterhead)

Fence Adjustments

Cutte r Guard Tension

Operating Controls

Operation

Maintenance

Lubrication

Cutterhead Repairs

Knife Inserts (Helical Cutterhead)

Whetting Knives (Straight Cutterhead)

Troubleshooting – Operating Problems

Troubleshooting – Mec hanical and Elect rical Problems

Optional Accessori es

Replacement Parts

Parts List: Stand Assembly

Stand Assembly

Parts List: Table Assembly

Table Assembly

Parts List: Motor Pulley Assembly

Motor Pulley Assembly

Parts List: Cutterhead Guard Assembly

Cutterhead Guard Assembly

Parts List: Straight Cutterhead Assembly

Straight Cutterhead Assembly

Parts List: Helical Cutterhead Assembly

Helical Cutterhead Assembly

Parts List: Fence Assembly

Fence Assembly

Electrical Connections – 1 Phase

Electrical Connections – 3 Phase