SKETCHNBUILD SNB-12A, Руководство пользователя

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11
Ⅵ
. Maintenance (Trouble Shooting)
In trouble shooting process, please operate complying with the following descriptions:
Trouble Cause Solution
Machine can’t
be started
Machine stops
automatically.
Main switch is not started up;
Interruption occurs in electric
circuit or some phase;
Protection for over load trips,
however, thermal relay is still not
cold that can’t reset;
Ends of the moving table exceed
the middle part of saw blade that
results in saw cut length is not
enough.
Emergency switch
is pressed
down;
Saw blade front plate guard or
machine back door is not closed;
Fuse for controlling the current
circuit is blown out.
Power supply interruption occurs
in one or more phases, e.g.
because the fuse is blown out.
Saw blade is too blunt or saw
cutting speed is too fast that results
in over load protection trips;
Fuse for controlling current circuit
is blown out;
Close the main switch knife “I”
Wait for recovery of the electric
circuit, or find out and remove the
cause for power failure. (e.g.: fuse is
blown out)
Solve the over load problem of
machine, and wait for the thermal
relay cooling down;
Pull the moving table back to the front
end of the saw blade middle part
again.
Turn emergency switch to right to
original position;
Close the door, and cover the plate
guard;
Open the electrical cabinet (prior to
which close the main switch), and find
out which fuse is damaged among F1,
F2 & F3. Find out the cause and
remove the trouble. Then, replace the
burned fuse. Pay attention to that the
fuse with same load can only be used;
Remove the cause for power failure in
phase, and re-start the machine.
Replace the saw blade or reduce the
saw cutting speed; wait for the thermal
relay cooling down, then re-start the
machine;
Open the electrical cabinet (prior to
which close the main switch), and find
out which fuse is damaged among F1,
F2 & F3. Find out the cause and
remove the trouble. Then, replace the
blown fuse. Pay attention to that the
fuse with the same load can only be
used;
Motor is
running, but the
workpiece does
not run.
Saw blade becomes blunt;
Riving knife blade does not match
with the saw blade
Mount the new saw blade;
Replace with proper riving knife
blade, and the thickness of which shall
be a little narrower than that of the
main saw blade;