Jet JPJ-12B, Operating Instructions And Parts Manual

Page: 5 / 48

5
26. Make sure the workpiece is securely attached or clamped to the table. Never use your hand to hold the
workpiece.
27. Turn off the machine before cleaning. Use a brush or compressed air to remove chips or debris
— do not
use your hands.
28. Do not stand on the 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 the
cutterhead comes to a complete stop.
30. Before turning on machine, remove all extra equipment such as keys, wrenches, scrap, stock, and cleaning
rags away from the machine.
Jointer Operation
31. Always use a hold-down or push block when surfacing stock less than 12" long, 3" wide, or 3" thick.
32. Do not perform jointing operations on material shorter than 8", narrower than 3/4", or less than 1/4" thick.
33. Hands must never be closer than 3" to the cutterhead (see the Figure
at right).
34. Never apply pressure to stock directly over the cutterhead. This may
result in the stock tipping into the cutterhead along with the operator's
fingers. Position hands away from extreme ends of stock, and push
through with a smooth, even motion. Never back workpiece toward the
infeed table.
35. To avoid kickback, the grain must run in the same direction you are cutting. Before attempting to joint or
plane, each workpiece must be carefully examined for stock condition and grain orientation.
36. When working with a swirl grain wood or burls, making it necessary to plane against the grain, use a lesser
depth of cut and a slow rate of feed.
37. Move the hands in an alternate motion from back to front as the work continues through the cut. Never pass
the hands directly over the cutter knife. As one hand approaches the knives, remove it from the stock in an
arc motion and place it back on the stock in a position beyond the cutter knife.
38. At all times hold the stock firmly against the table and fence.
Planer Operation
39. Keep hands outside the machine. NEVER reach under the guards to try to clear stock that stops feeding. Do
not clear chips and sawdust with hands; use a brush. Do not have any part of the hands under that part of
the board that is over the table when starting a cut; the infeed roll will engage the board and force it down
against the table causing a pinching action.
40. Check stock condition. Do not plane boards with loose knots or with nails or any foreign material on its
surface. Knife impact on these objects can cause the knives to be pulled out and cause them to shatter
against the chipbreaker or pressure bar. Twisted, warped, or in wind stock should first be jointed on one
surface before attempting to plane a parallel surface on the planer. Serious stock flaws cannot be removed
by use of a planer alone.
41. To avoid kickbacks, use this machine for single board surfacing only. Never make cuts deeper than 5/32"
(4mm).
WARNING: This product can expose you to chemicals including lead which is known to the State of
California to cause cancer and birth defects or other reproductive harm. For more information go to
http://www.p65warnings.ca.gov.
WARNING: Drilling, sawing, sanding, or machining wood products generates wood dust and other
substances known to the State of California to cause cancer. Avoid inhaling dust generated from wood products
or use a dust mask or other safeguards for personal protection.
Wood products emit chemicals known to the State of California to cause birth defects or other reproductive
harm. For more information go to http://www.p65warnings.ca.gov/wood.