33
Troubleshooting
The troubleshooting table is divided into two catagories:
1. The results of the machine
2. Mechanical or electrical problems
1. PROBLEMS WITH RESULTS OF THE MACHINE
Problem Possible Cause Remedy
In- and out-feed marks. 1. Incorrectly adjusted in- and out-feed
tables.
2. The workpieces are not butted when
being fed into the machine.
3. The feeding pressure of the feed
rollers is incorrectly adjusted.
4. The workpiece is bent or warped.
5. There is play in the suspension of
the machine table.
1. Adjust the in- and out-feed tables
so that they are set to the same
height as the machine table. The
tables must also be in line with the
machine table or somewhat higher
at the outer ends. (see p.11).
2. Butt the workpieces end to end when
feeding them into the machine. This
will eliminate the variations of the
feeding pressure that can occur the
moment the feed rollers grab the
workpiece.
3. Make sure that the feeding pressure
is sufcient and that the rollers are
balancing horizontally over the
workpiece. (See p.21)
4. Slightly lift the back end of the
workpiece when it is being fed
into the machine. This will make
it possible for the feed rollers to
press the workpiece at against the
machine table.
5. By using little force, check if the
machine table can be wobbled in
any direction. If this is the case, read
Levelling the machine table (p.22).
The entire surface is fuzzy. 1. The workpiece has high moisture
content.
2. The knives have lost their
sharpness.
1. Dry the timber before machining it.
2. Grind the knives. It is especially
important that the knives are sharp
when soft or moist wood is being
machined.
Fuzzy surface around knots, where the
direction of the bres can vary.
1. The workpiece has high moisture
content.
2. The knives have lost their sharp-
ness.
3. The workpiece is of a too soft sort
of wood.
1. Dry the timber before machining it.
2. Grind the knives. DIt is especially
important that the knives are sharp
when soft or moist wood is being
machined.
3. Choose another material, or sand
the workpiece after it has been
machined.
The thickness of the board does not
correspond to the setting of the scale.
1. The takeoff of the knives in the upper
cutter are set incorrectly.
2. The pointer of the height scale is set
incorrectly.
1. Set the takeoff of the planing knives
to 1 mm, using Logosol’s setting
block (ref. no. 7500-000-1020) or
a magnetic adjuster for the upper
cutter (ref. no. 7500-001-0050).
2. Machine a test board, measure it and
set the pointer to this measurement.
Fine-tuning of measurements should
always be done using the rotating
scale of the height-adjusting crank,
which can easily be reset. The scale
shows 1 mm every quarter of a turn.
To Next Page
Loading...
