Logosol PH260 - Page 35

35
2. MECHANICAL OR ELECTRICAL PROBLEMS
Problem Possible Cause Remedy
None of the motors can be started. 1. The cover is not entirely closed.
2. The emergency stop button is
pressed down.
3. No power is supplied to the
machine.
4. One of the motors is overheated.
5. Fault in the electrical system of the
machine.
6. A fuse has blown in the electric box
of the machine.
7. Wood debris has accumulated in the
cover’s safety switch.
1. Firmly tighten the locking knob on
the cover. You can hear a soft click
when the safety switch is activated.
2. Reset the emergency stop button by
pulling it outwards.
3. Check the residual circuit breaker
and the fuses in the building. Also
check the connecting cable.
4. Wait until the overheating protection
of the motor automatically resets (see
the point The motor is overheating).
5. The electrical system may only be
opened by a qualied electrician:
First of all, check the safety hold
circuit. This ciruit includes, among
other things, the emergency
stop button and the overheating
protections in the connection block
on each motor.
6. The machine has one or two
automatic fuses. Reset the fuse that
has blown. If the problem recurs, let
a qualied electrician nd the cause
of the problem and, if necessary,
replace the fuse.
7. The electrical system may only be
opened by a qualied electrician:
Open and clean the safety switch
from wood debris.
The workpiece is fed poorly or not at all
through the machine.
1. The shear pin in the out-feed roller
is broken.
2. Wood debris and resin have
accumulated in the grooves of the
feed rollers and on the out-feed
roller.
3. The pressure of the feed rollers is
too low.
4. The vertical movement of the feed
rollers is obstructed by wood debris
that has got stuck in the vertically
movable bearing housings of the
feed rollers or in the springs under
these.
5. Wood debris has accumulated
around the upper cutter.
6. The machine table is covered with
resin or rust.
7. The sliding strips under the feed
rollers are defect.
8. One (or several) of the sprockets in
the chain transmission of the feeder
has come loose from the shaft.
1. Remove the planetary gear and
replace the broken shear pin.
2. Clean the feed rollers with
Logosol’s Machine Cleaner (ref. no.
7500-001-5000).
3. Increase the feeding pressure
and make sure the feed rollers are
balancing horizontally over the
workpiece. (See p.21.)
4. Clean the bearing housings of the
feed rollers, especially check the
movable part of the bearing housing.
Remove wood debris that has got
stuck in the springs of the feed
rollers.
5. Remove the wood debris and
increase the air ow in the chip
extractor of the upper cutter.
6. Clean the table with Logosol’s
Machine Cleaner (ref. no.
7500-001-5000) and lubricate it with
Logosol’s Low Friction Agent (ref.
no. 7500-001-5050).
7. Replace the sliding strips and fasten
the new ones with double coated
tape, if necessary in several layers,
so that the the sliding strips are
about 0.5 mm above the surface of
the machine table.
8. Check the locking screws of the
sprockets and tighten them against
the at part of the shaft.