Operation Instructions - Urrea SB1014 Manual De Usuario Y Garantía

any further adjustment ensuring that the blade
remains in the same position. Once this has been
achieved lock the tracking knob with the winged
nut (Fig. 20).
It takes a few revolutions of the bandwheel for
the effecting adjustment on the tracking knob
to become apparent. To avoid over-adjusting,
make small gradual adjustments on the tracking
knob and revolve the bandwheel on a few times
to check the effect before making further adjust-
ments.
DRIVE BELT ADJUSTMENT & SPEED CHANGE
CAUTION: Before carrying out any adjustments
or maintenance ensure that the machine is isolat-
ed and disconnected from the electricity supply.
ADJUSTING THE DRIVE BELT TENSION
Use the belt tensioning handle (Fig. 21) to adjust
the tension of the drive belt. Rotate the handle
anti-clockwise to increase the tension and clock-
wise to decrease tension. As a guide the belt is ad-
equately tensioned when using the index finger to
impart reasonable pressure on the belt - the belt
should not deflect more than 1/4". But like ten-
sioning a band saw blade this is very subjective and
the best test is in operation, if the belt isn't slip-
ping or wearing excessively and there is adequate
power being applied to the bandwheels then the
drive belt is tensioned correctly
CHANGING THE BLADE SPEED
The machine has two blade speeds 820 m/min for
wood and 380 m/min for some plastics and acryl-
ics. This machine is not suitable for cutting metals.
The lower bandwheel has two, integral, multi vee
form pulleys and the motor shaft has a twin multi
vee form pulley.
The vee belt passes around the bandwheel pulley,
the motor pulley and the plain tension roller. The
belt tension is released
and applied by using
the crank handle, this
moves the tension
roller and allows the
speed to be changed
(See Fig. 21).
HIGH SPEED 820 m/min
Before changing the
speed always make
sure the machine has
been isolated from the
mains supply.
For the high speed the
18
Fig. 21
MANGO TENSOR DE CORREA
Fig. 22
belt should be fitted to the rear pulley on both the
motor and bandwheel. (Fig. 22).
LOWER SPEED 380 m/min
Before changing the
speed always make
sure the machine has
been isolated from the
mains supply.
For the low speed the
belt should be fitted to
the front pulley on both the motor and bandwheel
(Fig. 23).

OPERATION INSTRUCTIONS

SAFETY PRECAUTIONS BEFORE OPERATION
The operation of power tools involves a certain
amount of hazard for the operator. Before at-
tempting regular work we recommend you get
the feel of operations using scrap lumber to check
settings. Read entire instructions before you start
to cut work piece. Always pay attention to safety
precautions to avoid personal injury.
Band saw includes ripping and crosscutting, plus
a few other standard operations of a fundamen-
tal nature. The following methods feature safety.
As with all power tools there is a certain amount
of hazard involved with the operation and use of
tool.
Using the tool with the respect and caution de-
manded as far as safety precautions are over-
looked or completely ignored, personal injury to
the operator can develop. It is good practice to
make trial cuts using scrap material when setting
up your operations.
CROSSCUTTING
Crosscutting is the process of cutting across the
grain of wood, for plywood and other processed
wood, crosscutting simply means cutting across the
width of material.
1. Mark the work piece on the edge where you
want to begin the cut.
2. Adjust the blade guide assembly to the correct
height and make sure the miter gauge is set to 90°.
3. Move the fence out of the way, place the work
piece evenly against the miter gauge.
4. Hold the workpiece against the miter gauge
and line up the mark with the blade.
5. After all safety precautions have been met, turn
the band saw on, slowly feed the workpiece into
the blade and continue the cut till the blade is all
the way through the workpiece.
The picture shows a 90° crosscutting operation.
RIPPING
Fig. 23