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

Note: Make sure that the fence base casting is level with the Outfeed table when securing.

Lubrication

‰Use a good grade of light grease on the steel adjusting screws located in the raising and lowering mechanisms of the work tables.

‰Occasionally, apply a few drops of light machine oil to the infeed/outfeed gibs. This permits the tables to slide freely.

The cutterhead ball bearings are lifetime lubricated

 

and need no further care.

Figure 45

 

Troubleshooting Operating Problems

Trouble

Finished stock is concave on back end.

Finished stock is concave on front end.

Chip out.

Fuzzy grain.

Cutterhead slows while operating.

“Chatter” marks on workpiece.

Uneven knife marks on workpiece.

Probable Cause

Remedy

 

 

Knife is higher than outfeed table.

Raise outfeed table until it aligns with

tip of knife. See Outfeed Table

 

Adjustment.

 

 

Outfeed table is higher than knife.

Lower outfeed table until it aligns with

tip of knife. See Outfeed Table

 

Adjustment.

 

 

Cutting against the grain.

Cut with the grain whenever possible.

 

 

Dull knives.

Sharpen or replace knives.

 

 

Feeding workpiece too fast.

Use slower rate of feed.

 

 

Cutting too deeply.

Make shallower cuts.

 

 

Knots, imperfections in wood.

Inspect wood closely for imperfections;

use different stock if necessary.

 

 

 

Wood has high moisture content.

Allow wood to dry or use different

stock.

 

 

 

Dull knives.

Sharpen or replace knives/inserts.

 

 

Feeding workpiece too quickly, or

Feed more slowly, or apply less

applying too much pressure to

pressure to workpiece.

workpiece.

 

 

 

 

Set knives properly as described in the

Knives incorrectly set.

Setting Cutterhead Knives section.

Check that knife slots are clean and

 

 

free of dust or debris.

 

 

Feeding workpiece too fast.

Feed workpiece slowly and

consistently.

 

 

 

 

Align knives per the Setting Cutterhead

Knives are nicked, or out of

Knives section. Replace nicked knives

alignment.

or correct for small nicks – see Setting

 

Knives for Rabbeting and Nicks.

 

 

27

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Image 27
Jet Tools JJ-6CSDX, JJ-6CSX operating instructions Lubrication, Troubleshooting Operating Problems