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•  Insert Vacuum hose P into the end of the tool handle 

as illustrated 

•  Tighten Locking knob for length adjustment I by turn-

ing it in the direction of the locking symbol on the tool 
handle

•  Connect the Vacuum hose with the Ø 47 mm adapter 

P4 directly to an industrial vacuum cleaner (remove 
vacuum cleaner hose first)

•  You may also connect vacuum hose with one of the 

3 adapters to an industrial vacuum cleaner without 
removing the vacuum cleaner hose

Tool standard/airflow control (Fig. 8)

•  Tool handle P1 prevents the hose from damage when 

putting the tool aside during work breaks

•  Control the airflow by sliding suction power adjust-

ment ring (P3) over the opening in tool connector (P2)

•  The vacuuming power is at its lowest level when the 

opening is fully visible or when switching the machine 
on and off

•  Turn on/off the drywall sander by switch (J) Electronic 

speed control

•  Adjust the speed by turning the speed wheel (G), user 

can choose different speeds for different sanding sur-
faces.

•  Constant speed control will keep the machine running 

at the same speed as selected.

•  Do not overload by excessive pressure.

SANDING OPERATIONS

Once the machine and vacuum cleaner are set up and 
all safety measures and equipment are in place, begin by 
turning on the vacuum cleaner and then the machine.
(If you are using a vacuum cleaner with integrated switch-
ing, then simply turn the machine on.)

Round sanding head (Fig. 9)

•  Begin sanding and carefully contact the work surface 

as lightly as possible-just enough to keep the sanding 
head flat against the surface.

•  The pivot point in the sanding head allows the sanding 

disc to follow the contours of the work surface.

•  The best technique is to use overlapping sweeps and 

keep the head in constant motion. Never stop too long 
in any one place or there will be swirl marks. With ex-
perience it will be very easy to create excellent results.

Triangular sanding head⑩(Fig. 10)

•  The triangular sanding head does not rotate, but vi-

brates.

•  As the triangular sanding head can revolve on bear-

ings, it can sand right into the corners of the wall / 
ceiling.

•  In the corners reduce the contact pressure, otherwise 

there will be excessive load on the tips of the triangu-
lar sanding disc.

•  Heavily worn corners of the triangular sanding head 

can easily be replaced

Ensure that the sanding disc you are using is suited to the 
task, Overly coarse grit paper may remove material too 
quickly to control. Overly fine grit paper will clog more 
often.

Take care to avoid sharp projections and nails, etc. This 
will wipe out the sandpaper and probably damage the 
sponge pad as well.

MAINTENANCE / SERVICE

•  Store the tool in its protective case in a dry and 

locked-up place, out of reach of children.

•  Always keep tool and cord clean (especially ventilation 

slots).

•  Do not attempt to clean ventilation slots by inserting 

pointed objects through openings.

•  Disconnect the plug before cleaning.

ENVIRONMENT

Do not dispose of electric tools, accessories and packaging 
together with household waste material
In observance of any directive on waste of electric and 
electronic equipment and its implementation in accor-
dance with national law, electric tools that have reached 
the end of their life must be collected separately and re-
turned to an environmentally compatible recycling facility

BN Products-USA, LLC.

3450 Sabin Brown Road

Wickenburg, AZ 85390

(800) 992-3833 • mail@bnproducts.com

www.bnproducts.com

Summary of Contents for BNR1839

Page 1: ...ng Instructions BNR1839 Drywall Sanding Machine Please read this manual carefully before using this machine to make sure you are familiar with all safety and warning instructions BNR1839 Technical Man...

Page 2: ...ystem F Lock lever pad exchange G Motor housing H Folding lock I Main handle J Shaft K On Off switch L Lock button M Electronic speed control wheel N Dust extration outlet with locking sleeve O Extens...

Page 3: ...Page 3...

Page 4: ...result in serious personal injury Use personal protective equipment Always wear eye protection Protective equipment such as dust mask non skid safety shoes hard hat or hearing protection used for appr...

Page 5: ...e h Wear personal protective equipment Depending on ap plication use face shield safety goggles or safety glasses As appropriate wear dust mask hearing protectors gloves and shop apron capable of stop...

Page 6: ...onditioning wear a dust mask and work with a dust extraction device when operating Follow the dust related national requirements for the materials you want to work with Use completely unrolled and saf...

Page 7: ...anding disc to follow the contours of the work surface The best technique is to use overlapping sweeps and keep the head in constant motion Never stop too long in any one place or there will be swirl...

Page 8: ...SDR1839 100 100 Grit 10 Pads in a Pack SDR1839 120 120 Grit 10 Pads in a Pack SDR1839 150 150 Grit 10 Pads in a Pack SDR1839 180 180 Grit 10 Pads in a Pack SDR1839 240 240 Grit 10 Pads in a Pack Sandi...

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