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OWNER’S MANUAL
JJ-8CS Woodworking Jointer
JET EQUIPMENT & TOOLS, INC. P.O. BOX 1349 Phone:253-351-6000
A WMH Company Auburn, WA 98071-1349 Fax: 1-800-274-6840
www.jettools.com e-mail jet@jettools.com M-708458 06/01
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This manual has been prepared for the owner and operators of a JET JJ-8CS. Its purpose, aside from machine operation, is to promote safety through the use of accepted correct operating and maintenance procedures. Completely read the safety and maintenance instructions before operat- ing or servicing the machine. To obtain maximum life and efficiency from your jointer, and to aid in using the machine safely, read this manual thoroughly and follow all instructions carefully. Warranty & Service
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WARNING Wear eye protection. Always keep cutterhead and drive guards in place and in proper operating condition. Do not remove guard for rabbeting operations. . Never make a jointing, planing, or rabbeting cut deeper than 1/8” Always use hold-down/push blocks for jointing material narrower than 3”, or planing material thinner than 3”. Never perform jointing, planing, or rabbeting cuts (with jointers provided with a rabbeting guard) on pieces shorter than 8” (203mm) in length. • Keep guards in
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• Don’t overreach. Keep proper footing and balance at all times. • Maintain tools with care. Keep tools sharp and clean for best and safest performance. Follow instruc- tions for lubricating and changing accessories. • Always disconnect the machine from the power source before servicing. • Reduce the risk of unintentional starting. Make sure the switch is in the off position before plugging in. • Use recommended accessories. Consult the operator’s manual for recommended accessories. The us
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Table of Contents Warranty .........................................................................................................................................................2 Warnings .................................................................................................................................................... 3-4 Table of Contents ..........................................................................................................................................
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Levers and Controls 1. Handwheel for Outfeed Table 8. On/Off Switch 2. Outfeed Table 9. Rabbeting Ledge 3. Fence 10. Table Lock Knob 4. Fence Adjustment Handle 11. Fence Tilt Lock Handle 5. Cutter Guard 12. Fence Control Handle 6. Infeed Table 13. Belt Guard 7. Handwheel for Infeed Table 14. Dust Chute Specifications: JJ-8CS Stock Number ..................................................................................................................... 708458K Cutting Capacity .................
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Contents of Shipping Cartons Note: unit shipped in two cartons. Stand Carton 1. Stand with Motor 1. Stand Door 1. Dust Chute w/ Mounting Hardware Main Unit Carton 1. Bed Assembly w/ Fence 1. Cutter Guard 3. Mounting Bolts 3. 3/8" Lock Washers 1. Belt Guard 3. Hex Wrenches (3, 4 & 5mm) 2. Handwheels 2. Handles 2. V-Belts 1. Can of Touch-Up Paint 1. 8/10mm Open End Wrench 1. 12/14mm Open End Wrench 1. Owner’s Manual 1. Knife Gauge Assembly 1. Warranty Card Tools Required for Assembly #1 Cross Poin
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Installing Bed to Stand 1. Use an assistant or hoist mechanism to place bed assembly on top of stand. Be sure identi- fication label on the bed faces the same direc- tion as the label on the stand (Fig. 1). 2. Line up two holes in top of stand with holes in bed assembly by viewing through access door in stand. 3. Attach bed assembly to stand with two 3/8" lock bolts and lock washers (Fig. 2). Hand Fig. 1 tighten only at this time. 4. Line up third hole in stand with hole in bed as- sembly by v
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Assembling Knife-Setting Gauge 1. Place the two bases (A, Fig. 4) onto each end of the bar (B, Fig. 4). Snap the four E-rings (C, Fig. 4) into the grooves on the bar as shown. Fig. 4 90° Fence Adjustment Note: whenever making an adjustment 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. 5) and pushing the fence assembly until it
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4. Position of the table and straight edge should look 45° Fence Adjustment like figure 9. Use care when handling the straight edge near the blades so as not to damage them. Note: Whenever making an adjustment to the fence, lift the fence up slightly after releasing the lock handle to avoid scratching the table. 1. Loosen lock handle (A, Fig. 7). Move the stop plate (B, Fig. 7) out of the way and position the fence at the 45° angle. Make sure the fence sits against the stop bolt (C, Fig. 7).
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5. When the outfeed table and blade number one are the same height, tighten table lock screw. 6. The knives must be parallel with the outfeed table. Bring the straight edge forward to the front of the outfeed table and confirm that blade number one is at the same height at the front of the table as it is at the back of the table. 7. If blade is higher or lower at one point, slightly loosen five screws (A, Fig. 10) by turning clock- wise as viewed from the infeed table. Fig. 10 8. Place the knif
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Installing V-Belts 1. Disconnect the machine from the power source, unplug. 2. Remove the lock knob (A, Fig. 14) and belt guard (B, Fig. 14). 3. Place v-belts onto cutterhead pulley grooves and through opening in stand. 4. Pull v-belts down and place onto motor pulley (Fig. 15). If necessary, loosen the mounting screws (A, Fig. 15) and slightly lift motor. Re- Fig. 14 tighten the screws when belt is placed. 5. Check to make sure that motor pulley and cutterhead pulley are vertically aligned an
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Installing Access Cover 1. Install access cover by placing bottom of panel into access in stand and fastening by turning latch (Fig. 17). If the access door latch needs adjustment: 1. Remove the access door from the stand. 2. Loosen the hex lock nut (A, Fig. 17). Rotate the latch a quarter turn clockwise to tighten and counterclockwise to loosen. Fig. 17 3. Tighten the lock nut (A, Fig. 17). 4. Re-install the access door. Installing Dust Chute 1. Attach the dust chute (Fig. 18) to the stand with
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Operation WARNING Keep all guards in place and in adjustment at all times during the cutting procedure! Keep hands away from the cutterhead! Do not pass hands directly over the cutterhead! The use of push sticks and/or handle pads are highly recommended when using the jointer! Failure to comply may cause serious injury! Jointing cuts or edge jointing are made to square Fig. 21 an edge of a workpiece. The workpiece is posi- tioned on the jointer with the narrow edge of the workpiece on the i
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Jointing Warped Material the knives, and they will take a “bite” from the work with a tendency to kick back unless the piece is If the work to be jointed is cupped or warped, take held firmly. Push the work forward as in ordinary light, repetitive cuts until the surface is flat. Forc- jointing. The effect is to plane off all the stock in ing the material flat against the table will still leave front of the knives to an increasing depth, leaving a a warped piece after the cuts have been made.
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Rabbet Cut WARNING Rabbeting requires the removal of the cutterhead guard. Use extreme caution when making rabbeting cuts and replace the guard immediately after completion! Failure to comply may cause serious injury! 1. Adjust the fence so that the distance between the end of the knives and fence is equal to the width of the rabbet (Fig. 25). 2. Lower the infeed table an amount equal to the Fig. 25 depth of the rabbet. If the rabbet is quite deep, it may be necessary to cut in two or more
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6. Insert lock bar and screws and tighten to hold When blades become dull, touch up blades. See in place. Blades are set at the proper height “Sharpening the Knives” on page 18. 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 page 10 of this manual. Gib Adjustment After a period of use, the gibs ma
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Sharpening the Knives To remove the cutterhead (including bearings, studs, and housing) from the base casting: WARNING 1. Disconnect the machine from the power Blades are extremely sharp! Use caution source. when handling. Failure to comply may cause serious injury! 2. Remove the fence assembly, cutterhead guard, and belt guard. 1. Disconnect the machine from the power source. 3. Remove the v-belt from the cutterhead pulley. 2. Remove the fence, blade guard and belt cover. 4. Loosen set scr
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Trouble-shooting Te roublePn ossible Caus Solutio Raise outfeed table so it is level Finished stock is concaved on the Knife tip is higher than the outfeed with knife tip. end. table. Adjust outfeed table so it is level Back side of finished stock is Outfeed table is higher than knife with knife tip. thicker than the front side. tip. Adjust the screws below the table Table flatness should be checked Stock is concave in the middle. to raise the table ends. with a machinist's square. Raise table e
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Fence Assembly 20
