Foredom K.1070 - Manual (Page 2)

Attach it by inserting
the connector into the
Variable Speed Foot
Control connection
port on the rear panel
of the control (Figure
2) using keyway for
proper alignment. It is
not necessary to have
the foot pedal connected to the control
box to operate the dial speed control. The
Micromotor control and handpiece are
now ready to operate.
Connecting Power Cord
Before connecting the power cord plug
(Figure 2) to a power outlet, select the
proper voltage (110 or 220v) on the back
of the control box. Put the On/Off Selector
Switch in the OFF position and turn the
dial speed control to the OFF speed posi-
tion.
Be sure that the handpiece chuck is
closed with (or without) an accessory in
it. Operating the handpiece with the
chuck in the open position can
cause severe damage to the motor.
Now plug in the power cord to an AC
current outlet. See Figure 2 to select the
Hand/Foot and Forward/Reverse switches.
Connecting Optional
On/Off Foot Switch
This switch (p/n HP4-927)
is available separately and
attaches by inserting the
connector into the On/Off
foot connection port on
the rear panel of the con-
trol (Figure 2) using keyway for proper
alignment. This switch allows you to turn
the motor on and off without changing
the speed set by the dial.
•
NEVER turn on or start the
Handpiece while chuck is in open
(unlocked) position.
This can damage
the handpiece. Always operate and store
it with a bur or other accessory in the
chuck and with the chuck in the
closed position.
•
NEVER plug the Handpiece into
the Variable Speed Foot Control
Connection Port on the back of
the Control Box.
•
ALWAYS plug the Handpiece into
the Handpiece Connection Port on
the Front of the Control Box.
• DO NOT operate the handpiece in the
presence of any flammable liquid or gas.
Assembly Instructions
Do not plug into a power outlet
before connecting the handpiece or
foot pedal. Check to see that the
voltage selector switch on the
back of the control box, is set to
the voltage to be used–110 or
220 volt.
Connecting Handpiece
Attach the micromotor handpiece to the
control box by plugging the coiled cord
into the Handpiece Connection Port on
the lower right side of the front control
panel (Figure 1). Use keyway for proper
alignment when plugging in the cord.
NEVER plug the handpiece into the
Variable Speed Foot Control
Connection Port.
Connecting the Variable
Speed Foot Control
The Variable Speed Foot Control is suit-
able for either 110 or 220 volt operation.
Operating Instructions
for HP4-917 Control Box
1. Power On/Off Switch:
When the Power On/Off Switch is in the
ON position the switch lever will light up.
This switch must be in the ON posi-
tion for the handpiece to run with
either the dial speed control or the
foot speed control selected.
Always turn the Dial and Power
On/Off Switch to the Off position
when not in use.
2. Hand or Foot Selector Switch:
With the Dial and Power On/Off Switch in
the OFF position, select either foot or hand
speed control.
• With the Speed Control Selector Switch in
the Hand position, the handpiece will run
at the speed set by the Dial Speed Control.
• With the Speed Control Selector Switch in
the Foot position, the handpiece will not
operate until the Foot Pedal is depressed.
3. Forward/Reverse Rotation
Selection Switch:
With the Power
On/Off Switch in OFF position, select the
desired handpiece rotation by moving the
switch to Fwd. for FORWARD or Rev. for
REVERSE rotation.
Changing hand-
piece rotation direction while in
operation is not recommended.
4. Regulating Speed:
• The Dial Speed Control varies the speed
of the handpiece from minimum to
maximum when the Speed Control
Selector Switch is in the Hand position.
• The Dial also controls the maximum
speed that can be reached when using
a foot pedal.
To achieve maximum speed with a
foot pedal, the dial speed control
must be turned all the way to the
Max setting.
5. Handpiece Overload Protection:
If the Handpiece is used with a locking
ring left in the “R”position (see Fig.4), or
in an overload condition caused by exces-
sive workload, it will trigger the overload
circuit protector. The red overload light
will come on with an audible alarm, and
the handpiece will stop. Immediately turn
off control by putting the Power ON/OFF
switch in OFF position. Put power switch
in ON position again when overload
condition is corrected. There may be a
time delay of several seconds before
the overload trip resets.
Safety Instructions
A Micromotor Handpiece is a high
speed rotary power tool which can
be dangerous and cause serious
injury if it is not used properly.
NEVER operate it without wearing
eye protection.
•
ALWAYS wear proper eye and
face protection.
•
ONLY use accessories rated for
speeds of 38,000 rpm or higher
when operating this micromotor.
•
ALWAYS observe the manufacturer's
maximum speed rating when using any
accessory other than Foredom’s.
•
NEVER use or continue to use any
accessory which appears to be damaged,
loose, vibrating, bent, or out of balance.
Inspect each accessory for cracks or flaws
before use.
•
ALWAYS insert the shank or arbor of
an accessory or mandrel into the collet or
chuck of the handpiece as far as possible
in order to provide proper support and
close the collet or chuck securely.
DO
NOT use accessories with shanks that are
less than 1 ″ long.
•
NEVER use excessive side pressures
which may tend to bend or break the
shank or arbor of an accessory. Let the
speed of the accessory do the work.
•
DO NOT stall the motor by jamming or
using excessive pressure on the mounted
point, buff, wheel or accessory. This can
result in damage to the motor.
• WEAR a dust protector to prevent the
inhalation of harmful dust or debris from
grinding, carving or other operations
performed with this power tool.
•
DO NOT cover the ventilation slots or
handpiece motor with cloth or tape. Air
must pass freely through the intake and
exhaust ventilation slots to properly cool
the motor. If the power cord or plug to
the handpiece is damaged, repair or
replace immediately.
• NEVER operate with a damaged
power cord.
•
USE a dust collector (vacuum system)
to pull sawdust, grinding dust, or other
debris away from the work area and the
micromotor intake vents.
Rotation
Selection Switch Handpiece
Connection
Port
Illuminated
Power
On/Off
Switch
Dial Speed Control
Speed Control Selector
Switch (Hand or Foot)
Power
Cord
Voltage Selector
Switch-110 or 220
volt Variable Speed
Foot Control
Connection Port On/Off Foot
Connection
Port
Overload
Indicator
Light
Figure 1 Front Panel
HP4-927
6. Fuse Protection: The internal circuit
is protected by a 3.15 Amp, 5mm x
20mm, Bussman Type GDC-3.15A or
equivalent fuse. A blown fuse usually
indicates a short circuit condition on the
circuit board. The blown fuse should
require that the board be checked by a
qualified technician. Disconnect the
power cord, unscrew the four feet and
remove the baseplate. The fuse is located
in the top left corner of the circuit board.
Replace fuse and reassemble the
baseplate with four feet. Re-connect the
power cord and test unit operation.
H.MH-170
Micromotor Handpiece
This Handpiece is intended only for
fine finishing and detailing work. It
should not be used to remove large
amounts of material in carving or
other applications. If the handpiece
is misused or abused, it will not be
covered under warranty.
Changing Accessories
Burs and other accessories can be
inserted or removed from the handpiece
collet when the collet is open.
To open the collet–
1. Put the power switch on control box in
OFF position and wait for handpiece to
stop rotating.
2. Twist locking ring toward “R” or
Remove (See Figure 4 below) by turning
clockwise until collet snaps open.
3. Insert shank of accessory fully into
collet for maximum support.
Do not
use accessories with shanks less
than 1
″ long.
4. Twist knurled grip toward “S” or
Secure (See Figure 4) by turning counter-
clockwise until it snaps to lock collet.
Never turn power on to handpiece
when collet is open.
The spindle is in
a locked position and will not turn which
will result in damage to the motor.
4-feet baseplate fuse
Figure 3
Figure 4
Collet Adapters
(listed at left)
Use collet adapters with different shank
size accessories without having to
change collets. Accessory
Collet Size Shank Size Part No.
3/32 ″(2.35mm) to 1⁄16″ 1⁄16″ HPL4-3233
1⁄8 ″ to 1⁄16″ 1⁄16 ″ HPL4-3234
3mm to 3/32 ″(2.35mm) 3/32″(2.35mm)
HPL4-3235
1/8 ″ to 3/32″(2.35mm) 3/32″(2.35mm)
HPL4-3236
3mm to 1.6mm 1.6mm HPL4-3237
Collets Available for the
H.MH-170 Handpiece
Collet Size
Part No.
2.35mm(3/32 ″) Collet (supplied) HP4-117
3.18mm 1/8 ″) Collet (optional) HP4-117B
3mm Collet (optional) HP4-117C
Instructions for changing collets
on reverse.
Figure 2 Rear Panel