Luna BBS 500 Manual De Instrucciones página 31

Changing the Blade Speed. Fig. 13
el. As shown in Fig.13. For the low speed, the belt should be fi tted to the
front pulley on both the motor and bandwheel. As shown in Fig.13.
Replacing the Bandsaw Blade. Fig. 14
WARNING! Unplug the machine from the electricity supply. This ensures
that the Bandsaw will not accidentally turn on if the ON/OFF switch is
bumped.
a)Open the top and bottom bandwheel covers by
turning the door locking knobs.
b)Remove the rip fence rail from the front of the
Blade Tension Cam Handle
table by releasing the 4 thumb screws (Fig. 3
on page 5).
c)Release the blade tension by rotating the Blade
Tension Cam handle (Fig.14) clockwise.
d)Remove the saw blade by feeding it through the slot in the table, upper
and lower blade guides and the slot in the spine of the machine being
careful not to cut yourself. Wear gloves if necessary. e) When fitting the
new blade ensure the blade teeth are pointing downwards and towards
you at the position where the blade passes through the table.
f) Re-tension the new blade by rotating the quick release lever (Fig.14)
counterclockwise and check the blade tracking. The blade should run in
the center of the bandwheel. Refer to "Tracking the Saw Blade" on page
6 for more details.
WARNING! Before carrying
out any adjustment or mainte-
nance, ensure that the machine
is isolated and disconnected
from the electricity supply.
This Bandsaw has two blade
speeds, low speed and high
speed. The lower bandwheel
(A--Fig.13) has two, integral,
multi-vee form pulleys and the
motor shaft has a twin multi-
vee form pulley (B--Fig.13).
High Speed
The multi-vee belt (C--Fig.13)
passes around the bandwheel
pulley and the motor pulley.
The belt tension is released
and applied by using the Belt
Tension & Speed Change
Handwheel (D--Fig.13). For
Low Speed
the high speed, the belt should
be fi tted to the rear pulley on
both the motor and bandwhe-
g)Reset the blade guides as described in the section "Adjusting the Blade
Guides" on page 7.
h)Reset the blade tension as described in the section "Adjusting the Blade
Tension" on page 6.
i) Replace the rip fence guide, and retighten the 4 thumb screws (Fig. 3 on
page 5).
j) Close and lock both the bandwheel doors before reconnecting the power
supply.
5.0 OPERATION
The blade cuts on a continuous downstroke. With both hands, fi rmly hold
the workpiece down on the table, and feed it towards the blade slowly, kee-
ping your hands away from the blade. For best results the blade must be
sharp. A dull blade will not cut correctly, especially when straight cutting,
and causes excess pressure to be applied on the rear guide bearings. Select
the right blade for the job, depending on the thickness of the wood and the
cut to be made. The thinner and harder the wood, the fi ner the teeth of the
blade. Use a fi ne tooth blade for cutting sharp curves. The machine is espe-
cially suited for cutting curves, but will also make straight cuts. When cut-
ting, follow the design marked out by pushing and turning the workpiece
evenly. Do not attempt to turn the workpiece without pushing it, as this may
cause the workpiece to get stuck, or the blade to bend. For straight cuts, use
the fence provided to feed the workpiece along the blade slowly and in a
straight line.
6.0 MAINTENANCE
CAUTION! BEFORE CLEANING OR CARRYING OUT MAINTE-
NANCE WORK, DISCONNECT THE MACHINE FROM THE POWER
SOURCE (WALL SOCKET). NEVER USE WATER OR OTHER
LIQUIDS TO CLEAN THE MACHINE. USE A BRUSH. REGULAR
MAINTENANCE OF THE MACHINE WILL PREVENT UNNECESSA-
RY PROBLEMS.
Keep the table clean to ensure accurate cutting. Keep the outside of the
machine clean to ensure accurate operation of all moving parts and prevent
excessive wear. Keep the ventilation slots of the motor clean to prevent it
from overheating. Keep the inside (near the saw blade, etc.) clean to prevent
accumulation of dust.
7.0 WIRING DIAGRAM
WARNING! This machine must be grounded.
Replacement of the power supply cable should only be done by a qualifi ed
electrician.
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