Setting Feed Rollers For Molding - Jet JPM-13CS Operating Instructions And Parts Manual

•
Install special lock bar that is included with the
knife set. Make sure set screws are loose to
allow locking adjustment. Do not tighten at this
time.
•
Install cutter. Make sure it is facing proper
direction and is fully seated in the cutterhead.
8. Install molding cutter gauge with hex socket
cap screw and tighten to hold in place. The
guide may be attached to either side. See
Figure 16.
Figure 16
22. Adjust the guide end to meet the cutter edge.
23. Tighten the hex socket cap screw holding the
guide bar and be careful not to move it during
the alignment process.
24. Tighten lock bar set screws to hold cutter in
place. Tighten set screws half turn each side
to uniformly raise the lock bar until tight.
25. Rotate cutterhead to the second cutter insert.
26. Repeat steps for cutter inserts two and three
making sure the
positioned according to the alignment guide.
27. Remove guide.
28. Check that all set screws in the cutterhead are
tight.
29. Replace dust hood and dust chute.
30. Run machine for five minutes. Re-tighten gib
screws in cutterhead. Recheck after every 2
hours of use.
Never run the machine with
the dust hood loose or removed. All cutter lock
bar screws must be firmly seated before
turning on the machine. Failure to comply may
cause blade and/or cutter ejection resulting in
damage to machine, cutter, and may pose
hazard to operator.

12.2 Setting feed rollers for molding

The infeed and outfeed rollers will have to be
lowered for most molding operations. The amount
of adjustment required will vary depending on the
size and style of the cutter.
cutters are properly
When using cutters larger than 2" wide, the feed
rollers will have to be set 5/16" below the cutter
head. To set the feed rollers for molding:
1. Following the method for setting the feed
rollers when planing (previously explained in
this manual), make another wooden block
5/16" lower than the cutterhead block. See
Figure 17.
2. Adjust the infeed and outfeed rollers in the
same manner as setting the rollers for planing
using this new block.
3. Label this block "feed roller molding".
4. Save the block for future use.
outfeed rollers
cutterhead. This will cause severe stress on
gear box and roller system.
When using molding knives wider than 2", the first
pass or cut will remove approximately two thirds of
the stock. Test cuts on scrap material will
determine the number of passes required to
complete the cut. Never attempt to complete a
cut with less than two passes on smaller knives
(under 2") and three passes on larger knives
(over 2"). Generally, the more passes, the better
the finish.
Due to the variety of cutters available, it is
impossible to cover every possible set-up. It is very
important to use test cuts on scrap material before
attempting cuts on project material.
This machine is designed and intended for use with
three matched knives in sets. Many companies
offer knife sets that included only one knife and two
counter-weights. These cause severe vibration and
can damage the machine.
15
Figure 17
Never lower infeed
beyond 5/16" lower
and
than