Foredom K1050 User Manual

®

FOREDOM

Operation and
Maintenance Manual for
K.1050 Brushless Micromotor Kit

HP4-717
HP7-7060
Foot Control

HP4-933
Cradle

Control

H.MH-150 Handpiece

For Your Safety:

Read this Manual before operating your
Foredom Micromotor Power Tool.

Always wear eye protection while operating
this Micromotor.

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.
without wearing eye protection.

• ALWAYS wear proper eye and face protection.

• ONLY use accessories rated for 50,000 rpm or higher speeds when

operating this micromotor. Follow the Allowable Rotation Speed chart
on page 9 of this manual for safe operation when using accessories with
head diameters of more than 3/32″ (2mm).

• ALWAYS observe the manufacturer's maximum speed rating when using any accessory.

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.

• 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.

NEVER operate it

WEAR a dust protector, mask or respirator to prevent the inhalation of harmful dust or

•
debris from grinding, carving or other operations performed with this power tool.

• NEVER operate with a damaged power cord. If the power cord or plug to the handpiece
is damaged, repair or replace immediately.

• USE a dust collector (vacuum system) to pull sawdust, grinding dust, or other debris
away from the work area and the micromotor intake vents.

• NEVER turn on or start the Handpiece while chuck is in open (unlocked) position.
This can damage the handpiece. Make sure that a bur is installed and secured in the
collet, that the spindle is NOT locked and that the bur can spin freely. Always operate
and store it with a bur or other accessory in the chuck and with the chuck in
the closed position.

DO NOT operate the handpiece in the presence of any flammable liquid or gas.

•

1

Components

1 Control Unit (HP4-717)
2 Speed Display
3 Motor On/Off Switch
4 Motor On Indicator Light
5 Auto Cruise Switch
6 Auto Cruise On Indicator Light
7 Speed Control Knob
8 Forward/Reverse Selector Switch
9 Forward/Reverse Indicator Light

1

2

3

4

10 Hand/Foot Selector Switch
11 Hand/Foot Indicator Light
12 Power On/Off Switch & Light
13 Handpiece Plug Outlet
14 Foot Pedal Plug Outlet
15 Power Cord Plug Outlet
16 Fuse Holder with spare fuse
17 Test Bur
18 3/32″ Collet (1/8″ is optional)

Collet part numbers and sizes
are listed on page 7.

5

6

7

19 Handpiece (Brushless DC

Micromotor H.MH-150)

20 Handpiece Motor Cord
21 Handpiece Cradle

(HP4-933)

22

Handpiece Holder

23

Chuck Wrench

24

Foot Pedal

25

Foot Pedal Cord

26

Power Cord

(HP7-7060)

17

18

8

9

10

11

12

20

23

15

14

25 24 26

16

13

19

21 22

2

Complete Kit (Fig. 3)

Control Unit, Power Cord

Handpiece
Handpiece Holder,

Phillips Screw, Washer

Foot Pedal

Handpiece Cradle

Chuck wrench

AC Power Input (Fig. 4)

1. Check the label on the rear of the Control Unit to

make sure that the electrical specifications match
your AC power.

2. If the fuse needs to be replaced ( Fig. 6), replace it

with identical type and rating only– 5x20mm,SLO­BLOW, 3.15A, 250V. For a 230V Micromotor use a
5x20mm,SLO-BLOW, 1.6A, 250V. The Fuse Holder 16
contains a spare fuse (Fig. 5).

CAUTION

• Never plug or unplug the Power Cord with wet

hands to avoid electric shock.

• Use only with a grounded AC power receptacle.

16

Installation

CAUTION

• The Control Unit should rest on a flat, steady

surface. Avoid blocking the ventilation openings in
the bottom of the case.

• Use the Control Unit in locations that have a

temperature below 100ºF. Avoid excessively dusty,
hot or humid locations.

3