Jet Tools JJ-8CS owner manual Sharpening the Knives, Cutterhead Removal

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Sharpening the Knives

WARNING

Blades are extremely sharp! Use caution when handling. Failure to comply may cause serious injury!

1.Disconnect the machine from the power source.

2.Remove the fence, blade guard and belt cover.

3.To protect the infeed table from scratches, par- tially cover the sharpening stone with paper. (Fig. 30)

4.Lay the stone on the infeed table.

5.Lower the infeed table and turn the cutterhead by turning the cutterhead pulley. The infeed table height is set properly when the stone’s surface is flush with the knife bevel.

6.Keep the 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 and 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 with another set.

It is recommended to keep a second set of blades on hand so that they may be installed while the first set is being professionally sharpened.

Cutterhead Removal

WARNING

Blades in the cutterhead are sharp! Use

extreme caution when handling the removal of the cutterhead. Failure to comply may cause serious injury!

The entire cutterhead assembly may be removed for cleaning or for bearing and blade replacement. Some woodworkers keep a spare cutterhead with replacement blades should the original cutterhead have to be repaired.

To remove the cutterhead (including bearings, studs, and housing) from the base casting:

1.Disconnect the machine from the power source.

2.Remove the fence assembly, cutterhead guard, and belt guard.

3.Remove the v-belt from the cutterhead pulley.

4.Loosen set screw (A, Fig. 31) using a hex wrench and remove the cutterhead pulley (B, Fig. 31) and key (C, Fig. 31).

5.Remove nuts (D, Fig. 31) and lock washers (E, Fig. 31).

6.Lift assembly straight up. Studs (F, Fig. 31) will still be attached to the bearing housings.

7.Before replacing the cutterhead back into the cast- ing, thoroughly clean the “saddle” and the bearing housings of saw dust and grease so that they seat properly.

8.To re-install the cutterhead, reverse the above steps.

Fig. 30

Fig. 31

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Contents JJ-8CS Woodworking Jointer Warranty & Service Volts Total Length of Cord in Feet AWGPage Table of Contents IntroductionSpecifications Levers and ControlsContents of Shipping Cartons Tools Required for AssemblyUnpacking and Cleanup Installing Bed to Stand Installing HandwheelsAssembling Knife-Setting Gauge Fence AdjustmentLeveling Outfeed Table with Cutterhead Knives Illustrates the outfeed table at the correct height Installing V-Belts Installing Cutterhead GuardDisconnect the machine from the power source, unplug If the access door latch needs adjustment Installing Access CoverInstalling Dust Chute Electrical ConnectionsOperation Bevel Cut Jointing Warped MaterialDirection of Grain Taper CutRabbet Cut Removing and Replacing KnivesGib Adjustment LubricationBlade Care Sharpening the Knives Cutterhead RemovalTrouble Possible Cause Solution Trouble-shootingFence Assembly Parts List for the JJ-8CS Woodworking Jointer Fence Assembly Index Part Description Size QtyBed Assembly 16 x 1-1/4 Stand and Motor Assembly JC-M01W Cutterhead Assembly Cutterhead Assembly Wiring Diagram