FOREDOM MADC20 Owner'S Manual Download Page 2

MADC20 Dust Collector 

Includes:

• 

Cyclone dust collector with  

collection bowl

• 

5

′ 

Vacuum Hose Assembly 

• 

Top Connector

• 

2 HEPA Filters  (1 installed)

• 

Remote Cord for MALC15 

• 

Remote Switch with 9

 Cable

• 

Power Cord

Operation and Maintenance 

 continued 

Thermal shut off prevention:

  

The Dust Collector motor has a safety electronic 

thermal overload

 

prevention circuit which turns 

the motor off if it gets too hot. This can be caused 

by 

both filters being clogged

, especially the 

canister filter MADC208 which is located under the 

HEPA filter bag. 

1. 

Periodically check the Clear Dust Collection Bowl 

for build up. When it is half full you need to empty it. 

Precious metals will be collected here for later refining. 

Other debris should be disposed of properly. To release 

the bowl, flip up the three spring latches. When the 

bowl is clean, place it back into position and reattach 

spring latches.

2. 

Changing the HEPA Filter Bag

,

 loosen (do not 

remove), the four thumb screws located on the top 

of the dust collector and turn the cover clockwise to 

release the cover slots from the thumb screws. Pull the 

lid with the filter bag from the dust collector.  

Next, unscrew and 

remove the two thumb 

screws that hold the 

filter bag in place. Pull 

off the old filter bag 

and insert the new 

bag over the mounting 

tube and screw on the 

thumb screws to hold 

the new filter in place. 

Retighten the thumb screws.

3. 

To access the Canister Filter:

 remove the Top 

Connector tubing. Then loosen the thumb screws to the 

filter chamber compartment and twist it until the lid can 

be removed. You should replace 

the HEPA filter bag at this time. 

Then look down into the empty 

chamber and unscrew the knob 

screw on the canister filter lid 

and carefully remove the metal 

and rubber washers and lid. You 

can now lift out the canister 

filter and replace it. Reassemble 
and start working again.

4. Changing a Fuse – If the unit is not power-

ing on, you should check the fuse. 

The fuse and 

spare fuse (

8 amp, 5 x 20mm, 

medium time delay, Bussman 

GMC-8A

 or equivalent) are stored 

in the AC power cord receptacle 

on the front of the unit. To check 

or change the fuse, follow these 

directions: Remove the power cord 

from the Power Inlet to expose the 

fuse holder drawer. Use the blade of 

a small screwdriver in the slot of the 

fuse holder and gently pry outward. 

The active fuse is in the back of the 

drawer and a spare fuse is in the front 

compartment. If the glass case of 

the active fuse is darkened, the fuse 

is blown. From the underside of the 

drawer, push out the blown fuse using a small screwdriver.

Do not use a higher am-

pere fuse. MAX Fuse size is 

8 Amps

.

5.

 

Changing Motor 

Brushes 

Power decreases or intermit-

tent power may be a sign that 

the motor brushes need to be 

replaced.  

To replace them be 

sure to unplug the 

power plug and the 

remote plug. 

A.

 Use a 2mm hex key to un-

screw the 10 screws holding 

the front panel on the unit, 

placing it to the side without 

disconnecting the wires. 

 

B.

  Remove the two Philips head motor mounting screws 

on the motor mounting bracket.  

C.

  Carefully 

slide the  

motor out of 

the housing. 
 

Motor with  

mounting 

bracket  

removed

D.

  Gently  

remove the 

electrical  

connectors to  

both motor 

brushes. 

continued 

 

Cyclone  

dust  

collector 

Clear Dust  

Collection  

Bowl

Top Connector

Vacuum Hose 

Assembly 5ft

2 HEPA Filters 

MADC205

Exhaust Deflector

Hose Port

4 Mounting holes for Cyclone

Remote 

Switch  
with 

9

 

Cable

• 

Exhaust Deflector

Assembly

 

1.

 Remove the unit and all components from box and 

cross check with list above to make sure that there is 

nothing missing.

2.

 Lay the dust collector on its left side and remove the 

four screws to mount the cyclone  with bowl.

3.

 Align the mounting holes of the cyclone with the 

dust collector, insert screws and tighten. 

4.

 Place the dust collector upright on its casters.

5.

 Insert the Top Connector into the top of the cyclone 

and top of the dust collector.

6.

 Connect the Vacuum Hose into the Hose Port on 

the cyclone and the other end into a work chamber, 

fishmouth or other dust collection device.

7.

 Check to make sure that the power switch is in the 

off position and plug the power cord into Power Inlet. 

The Power Switch has 3 positions with ‘Manual On’ at 

the top, ‘Off’ in the center, and ‘Remote On/Off’ for the 

bottom. The red light is illuminated when the unit is on. 

8.

 Plug the Remote Switch Cable into the Inlet labelled 

‘Remote’ and turn on the unit.  Turning the Vacuum 

Speed knob clockwise will increase the speed of the 

motor and cfm of air moving through the unit. The fan 

speed selected will depend on the job at hand.

9.

 The dust collector is best used near the work 

area, usually on the floor beneath your bench. A 5’ 

long vacuum hose is supplied with the dust collector. 

Additional extension hoses are available (see back), 

but keep in mind that

 

longer hose lengths will 

reduce the suction of the unit.

10. 

The remote control switch has a holder that has a 

(PSA) pressure sensitive adhesive backing. Just peel off 

the paper and press down the remote holder in a con-

venient out of the way location near your work area.

Operation and Maintenance

Use the Dust Collector for filtering dust and 

debris from grinding, sanding, buffing filing 

and polishing on wood, stone, diestone, metal 

and plastic. The unit is designed to run with the 

cyclone which gives you ten times the filter bag 

life, decreases maintenance and improves the 

performance of the unit.

HEPA Filter 

MADC205

Pry open  

fuse drawer

Active 

Fuse 

Spare 

Fuse

Power 

Cord

Remote Cord  

for connecting to 

Foredom MALC15 

or other compat-

ible equipment for 

remote activation

Canister Filter 

MADC208

Power 

Inlet 

with fuse 

receptacle

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