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Operating Instructions and Parts Manual

8-inch Woodworking Jointer

Models JJ-8CS and JJ-8HH

Model JJ-8CS

Model JJ-8HH

WMH TOOL GROUP, Inc.

2420 Vantage Drive
Elgin, Illinois 60124

Part No. M-708458

Ph.: 800-274-6848

Revision G

7/07

www.jettools.com

Summary of Contents for JJ-8CS

Page 1: ...al 8 inch Woodworking Jointer Models JJ 8CS and JJ 8HH Model JJ 8CS Model JJ 8HH WMH TOOL GROUP Inc 2420 Vantage Drive Elgin Illinois 60124 Part No M 708458 Ph 800 274 6848 Revision G 7 07 www jettools com Copyright 2007 WMH Tool Group Inc ...

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

Page 3: ...s JJ 8CS only 14 Replacing or Rotating Knife Inserts JJ 8HH only 14 Gib Adjustment 15 Operation 15 Jointing Warped Material 16 Direction of Grain 16 Bevel Cut 16 Taper Cut 17 Rabbet Cut 17 Maintenance 18 Lubrication 18 Blade Care 18 Sharpening the Knives JJ 8CS only 18 Cutterhead Removal 18 Replacement Parts 20 Fence Assembly all models 21 Parts List Fence Assembly all models 21 Bed Assembly all m...

Page 4: ... 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 while tired or under the influe...

Page 5: ...machine Serious injury could occur if the machine tips over 29 Never leave the machine running unattended Turn the power off and do not leave the machine until it comes to a complete stop 30 Remove loose items and unnecessary work pieces from the area before starting the machine Familiarize yourself with the following safety notices used in this manual This means that if precautions are not heeded...

Page 6: ...sitive Stops 45ºL 90º 45ºR 45ºL 90º 45ºR Motor 2HP 1Ph 60Hz 230V only 2HP 1Ph 60Hz 230V only Net Weight Jointer and Stand approx 400 lbs 411 lbs Shipping Weight Jointer and Stand 495 lbs 505 lbs 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 wi...

Page 7: ...ge Assembly Tools included with JJ 8HH 1 12 14mm Open End Wrench 1 8 10mm Open End Wrench 4 Hex Wrenches 3 4 5 6 mm 2 Star Point Screwdrivers 5 Knife Inserts 10 Knife Insert Screws Tools Required for Assembly 1 Cross Point Screwdriver 6 8 Adjustable Wrench or 17 19mm Wrench Unpacking and Cleanup 1 Carefully finish removing all contents from both shipping cartons Compare contents of the shipping ca...

Page 8: ...stand with two 3 8 lock bolts and lock washers Fig 2 Hand tighten only at this time 4 Line up third hole in stand with hole in bed assembly by viewing through dust chute 5 Install third 3 8 lock bolt and lock washer through dust chute to secure bed to stand 6 Tighten all three mounting bolts with 14mm wrench Installing Pedestal Switch JJ 8HH only Referring to Figure 3 1 The switch may be installed...

Page 9: ...hrough opening in stand 4 Pull v belts down and place onto motor pulley Fig 7 If necessary loosen the mounting screws A Fig 7 and slightly lift motor Re tighten the screws when belt is placed 5 Check to make sure that motor pulley and cutterhead pulley are vertically aligned and the v belt does not contact the sides of the opening in the base If the pulleys are not aligned loosen the screws A Fig ...

Page 10: ...ling Dust Chute Attach the dust chute Fig 10 to the stand with four screws and four flat washers through the pre tapped holes in the stand Electrical Connections 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 Model JJ 8CS Remove the cover of the sw...

Page 11: ...tment to the fence lift the fence up slightly after releasing the lock handle to avoid scratching the table 1 Set infeed table to the same height as the outfeed table 2 Move the fence by releasing lock handle A Fig 14 and pushing the fence assembly until it overlaps the tables 3 Adjust the fence to a 90 angle by releasing lock handle B Fig 14 pulling up on handle C Fig 14 and re tightening lock ha...

Page 12: ...ips of the cutterhead at their highest point of revolution The knife tips must project equally from the cutterhead The outfeed table and cutterhead are adjusted at the factory and should not require adjustment 1 On the JJ 8CS Jointer carefully number each blade with a magic marker to make them easier to differentiate 2 Rotate the cutterhead by turning the cutterhead pulley and determine the 12 o c...

Page 13: ...nife setting gauge B Fig 19 on the cutterhead over the blade Continue loosening the five screws until the springs push the knife up into contact with the gauge Alternately tighten the five screws to hold each blade in place 9 Repeat this process with blades two and three The outfeed table and cutterhead knives are correctly adjusted when all three blades are parallel to the outfeed table and all t...

Page 14: ...the cutterhead channel making sure it faces the proper direction 6 Insert lock bar and screws and tighten to hold in place Blades are set at the proper height when the top of the blade is 1 16 above the cutterhead 7 Repeat for other two blades 8 To set the knives to the outfeed table and to the same height in the cutterhead see section titled Leveling Outfeed Table to Cutterhead Knives found on pa...

Page 15: ... B Fig 27 2 Tighten each set screw 1 4 turn starting at the bottom and working up If a 1 4 turn does not remove all play take another 1 4 turn Repeat a 1 4 turn at a time for all three set screws until play is removed 3 Tighten lock screw B Fig 27 and lock nuts A Fig 27 Operation Keep all guards in place and in adjustment at all times during the cutting procedure Keep hands away from the cutterhea...

Page 16: ...ickly ridges will appear in the finished surface Jointing Warped Material If the work to be jointed is cupped or warped take light repetitive cuts until the surface is flat Forcing the material flat against the table will still leave a warped piece after the cuts have been made Never joint any material shorter than eight inches The material may tip into the jointer s throat and be kicked back Avoi...

Page 17: ...e left by the knives when starting the taper may be removed by taking a very light cut in the regular jointing procedure with the infeed table raised to its normal position Practice is required in this operation Beginners are advised to make trial cuts with scrap material Rabbet Cut Rabbeting requires the removal of the cutterhead guard Use extreme caution when making rabbeting cuts and replace th...

Page 18: ...he cutterhead from rotating by grasping the cutterhead pulley while sliding the stone back and forth across the table 7 Take the same amount of passes for all three blades When the blades have been sharpened if they still are not cutting efficiently trying to touch up the blades further will only cause the formation of a second beveled edge When this starts to happen it is time to replace blades w...

Page 19: ...e Raise table ends with adjustment screws below tables Infeed or outfeed tables are loose Loose gib Tighten gibs One blade set higher than the others Readjust blades Feeding wood too fast Feed wood more slowly Ripples on planed surface Kickbacks Cutting blades are set too high above outfeed table or they may not be level with outfeed table JJ 8CS Readjust blades JJ 8CS Motor Have motor checked by ...

Page 20: ...o order parts or reach our service department call 1 800 274 6848 Monday through Friday see our website for business hours www wmhtoolgroup com Having the Model Number and Serial Number of your machine available when you call will allow us to serve you quickly and accurately ...

Page 21: ... 9 5D A004 Locking Link 1 10 JC F07 Joint Plate 1 11 5C E051 Flat Head Bolt 5 16 18 x 1 1 2 1 12 JC F08 Screw 1 13 TS 0207081 Socket Head Cap Screw 1 4 20 x 1 1 2 2 14 TS 0207021 Socket Head Cap Screw 1 4 20 x 1 2 1 15 TS 0050061 Nut 1 4 20 2 16 JC F09 Pin 5x50 1 17 JC F10 Stop Block 1 18 TS 0561052 Nut 1 2 20 2 19 JC F11 Locking Bolt w Handle 1 20 TS 0680061 Flat Washer 1 2 2 21 6296081 Nut 1 22 ...

Page 22: ...22 Bed Assembly all models ...

Page 23: ...2 4 16 JC T10 Feed Screw 2 17 JC T11 Ring 2 18 TS 0267041 Set Screw 1 4 20 x 3 8 4 19 JC T12 Wheel 2 20 PA C42 Handle 2 21 5C D003 Pan Head Machine Screw 5 16 18 x 1 2 2 22 TS 0680031 Flat Washer 5 16 2 23 F5 G107 Key 5 x 5 x 22 2 24 JC T13 Gib 2 25 TS 0270091 Set Screw 5 16 18 x 1 6 26 TS 0561021 Hex Nut 5 16 18 6 27 5I D003 Ball 2 28 JC T15 Stop Handle 3 30 JC T16 Scale 1 31 5F H051 Rivet 7 32 J...

Page 24: ...24 Stand and Motor Assembly JJ 8CS only ...

Page 25: ...0031 Flat Washer 5 16 4 14 TS 0561021 Hex Nut 5 16 18 4 15 JJ8HH 315 Hex Head Screw 1 2 12 x 1 4 16 TS 0680061 Flat Washer 1 2 4 17 JCS10 079C Screw 3 16 UNC x 3 4 2 18 TS 0680021 Flat Washer 1 4 4 19 JC M07 Lock Bolt 3 8 16 3 20 TS 0720091 Lock Washer 3 8 3 21 JC M03 Dust Chute 1 22 TS 0813032 Pan Head Screw 1 4 20 x 1 2 4 23 JJ8 917W Motor 2HP 1Ph 1 24 JJ8 918 Motor Cord 1 25 JJ8 919 Strain Reli...

Page 26: ...26 Stand and Motor Assembly JJ 8HH only ...

Page 27: ... Washer 1 4 4 19 JC M07 Lock Bolt 3 20 TS 0720091 Lock Washer 3 8 3 21 JC M03 Dust Chute 1 22 TS 081F032 Screw 1 4 20x1 2 4 23 JJ8 917W Motor 2HP 1Ph 1 29 PG M02 JET Label 1 30 JC T23 Warning Label 1 31 5FK C13 Key 5x5x35 1 32 JJ6HH 316 Cord Protector 2 33 JJ6HH 315 Switch Arm 1 34 JPS10TS 343 Main Switch 1 35 TS 0208141 Socket Head Cap Screw 5 16 18x3 2 37 JJ6HH 348 Screw M4x25 2 38 JPS10TS 342 S...

Page 28: ... 4 JC C03 Cutterhead Set Bolt 2 5 TS 0680041 Flat Washer 3 8 2 6 TS 0561031 Nut 3 8 16 2 7 PA C05 Spring 6 8 708802 Knife 3 9 JC C05 Knife Lock Bar 3 10 JC C06 Screw 15 11 JC C07 Knife Gauge Rod 1 12 JC C08 Knife Gauge 2 13 TS 0680041 Retaining Ring STW 9 4 15 JC C09 Machine Pulley 1 16 5F G107 Key 5 x 5 x 22 1 17 TS 0270031 Set Screw 5 16 18NC x 3 8 2 ...

Page 29: ...Helical Cutterhead 1 2 JC C02 Bearing Housing 2 3 BB 6204VV Ball Bearing 6204VV 2 4 JC C03 Bolt 2 5 TS 0680041 Flat Washer 3 8 2 6 TS 0561031 Hex Nut 3 8 16 2 7 1791212 Knife Insert set of 10 total 36 8 JWP208HH 111 Knife Insert Screw 10 32x1 2 36 9 5F G107 Key 5x5x22 1 10 TS 0270031 Socket Set Screw 5 16 18x3 8 2 11 JC C09 Cutterhead Pulley 1 12 JJ6HH 113 Star Point Screwdriver not shown 2 ...

Page 30: ...30 Electrical Connections JJ 8CS only ...

Page 31: ...31 Electrical Connections JJ 8HH only ...

Page 32: ...32 WMH Tool Group Inc 2420 Vantage Drive Elgin Illinois 60124 Phone 800 274 6848 www wmhtoolgroup com ...

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