Challenge JF Instructions And Parts Manual page 11

Set the Drills Correctly - Do not cut too deeply into the cutting block. The drill should just touch the block and
cleanly cut through the bottom sheet. During drilling, do not set the drill deeper into the block but change the
position of the block frequently. Drilling deeper into the block dulls the drills quickly. Use a piece of chipboard
underneath your stock. This will make handling the stock easier and will ensure that the last sheet is cut cleanly
through.
Check for Drill Wobble - If the spindle is badly worn or bent through misadjustment, have it replaced immediately.
A wobbly or loosely held drill will break.
Check Your Drill Sharpener - The cutting edge of the sharpening bit should be inspected frequently to make
certain that it is sharp and free of nicks. Never let a drill drop onto the sharpening bit. It will chip the sharpening
edge. Use gentle pressure when sharpening - let the sharpening bit do the work. Check the sharpness of the drill
after sharpening. The cutting edge should be razor sharp.
Just a little time and effort taken with each use of your paper drilling machine should result in trouble free operation
over many years.
PARTS CUSTOMERS: The Challenge Machinery Company provides parts with the express under-
standing that they are to replace parts found missing or no longer serviceable on equipment designed
and/or manufactured by Challenge. The Challenge Machinery Company assumes no liability for any
modification or alteration to any Challenge products, and any such modification or alteration to any
Challenge products is not authorized by The Challenge Machinery Company. Any modification or
alteration of any Challenge product will void any remaining warranty.
F.330-J/APR 97
DRILLING TIPS (cont.)
11