BORMANN BDS7100 Drywall Sander Brushless 400W Instruction Manual

Built to last.
BDS 7100
035930
Instruction Manual

Safety Instructions

WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
Work area safety
a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
c) Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
Electrical safety
a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
e) When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.
NOTE: The term residual current device (RCD) may be replaced by the term ground fault circuit Interrupter (GFCI) or earth leakage circuit breaker (ELCB).
Personal safety
a) Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.e
b) 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 appropriate conditions will reduce personal injuries.-
c) Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents.
d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
Power tool use and care
a) Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
b) Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
c) Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
d) Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
e) Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tools operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
Service
a) Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained. Kickback and related warnings Kickback is a sudden reaction to a pinched or attaching a rotating wheel, a bearing pad, brush or any other accessory. Pinching or hanging causes rapid stalling of the rotating accessory which in turn forced the tool Power out of control in the opposite direction of rotation of the accessory to the point of seizing.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material, causing jumps or expulsion of the grinding wheel. The wheel can jump towards the operator or by moving away, as the direction of movement of the grinding wheel at the point of pinch. Abrasive wheels may also break under these conditions. Kickback is the result of misuse of the tool and/or procedures or conditions incorrect operation and can be avoided by taking proper precautions specified below.
a) Maintain firmly the power tool and position your body and arm for you allow to resist kickback forces. Always use auxiliary handle, where applicable, for maximum control of kickback or torque reaction during startup. The operator can control the reaction torques or forces rebound, if precautions are taken.
b) Never place your hand near the rotating accessory. The accessory can perform a bounce on your hand.
c) Do not place yourself in the area where power tool will move in case kickback occurs. The rebound pushes the tool in the opposite direction to the movement of the wheel at the hooking point.
d) Take special care when working corners, sharp edges etc. Avoid twists and snaps of the accessory. Corners, edges or sharp twists tend to hang the rotating accessory and cause loss of control or kickback.
e) Do not attach a saw chain, blade wood carving saw chain or toothed saw blade. Such blades cause frequent rebounds and control losses.

Additional safety instructions for sanding operations
Install specific security guard for sanding
a) Do not use sandpaper too oversized for sanding discs. Follow manufacturers’ recommendations when selecting sanding paper. More abrasive paper extending beyond the sanding pad presents a laceration hazard and may cause a crash, tearing of the disc or kickback.
Warnings
WARNING – To reduce the risk of injury, user must read instruction manual.
Always wear hearing protection
Always wear safety goggles
Always wear a breathing mask
In accordance with essential applicable safety standards of European directives
Class II product
Safety rules for drywall sander

1. USE A RESPIRATOR approved by NIOSH for “Dust and Mist”. Ventilate work area and/or use a dust collector. Continued and prolonged exposure to high concentrations of airborne dust may affect the respiratory system function.
2. MAINTAIN FIRM FOOTING AND BALANCE. Use appropriate scaffolding. Do not overreach.
3. SANDING OF LEAD-BASED PAINT IS NOT RECOMMENDED, Lead-based paint should only be removed by a professional.
4. SANDING DRYWALL COULD LEAD TO A BUILD-UP OF STATIC ELECTRICITY IN THE TOOL. For your safety, the drywall sander is grounded.

Technical data

• The manufacturer reserves the right to make minor changes to product design and technical specifications without prior notice unless these changes significantly affect the performance and safety of the products. The parts described/illustrated in the pages of the manual that you hold in your hands may also concern other models of the manufacturer’s product line with similar features and may not be included in the product you just acquired.
• To ensure the safety and reliability of the product and the warranty validity, all repair, inspection, repair or replacement work, including maintenance and special adjustments, must only be carried out by technicians of the authorized service department of the manufacturer.
• Always use the product with the supplied equipment. Operation of the product with non-provided equipment may cause malfunctions or even serious injury or death. The manufacturer and the importer shall not be liable for injuries and damages resulting from the use of non-conforming equipment.

Description of main part

Operating instructions

Foreword
The drywall sander is designed for sanding walls and ceilings that are made of drywall or plaster. The sander provides a superior finish, and is faster than conventional finishing methods for both new construction and renovation work. Clean-up time is minimized by the use of an external vacuum cleaner attached to the sander.

How to hold a drywall sander
The drywall sander should be held with both hands on the main tube. The hands may be positioned anywhere along the main tube to provide the best combination of reach and leverage for the particular application.
CAUTION: Keep hands on main tube. Do not place hand into area around the sanding head. The sanding heads swivels in multiple directions and could pinch hand.
Connect drywall sander to vacuum cleaner
The following items are furnished with the drywall sander.

• One vacuum hose: 4m long (includes a standard 38mm vacuum cleaner connector on end and a special swivel connector on the sander end)., with a static dissipating feature to dissipate static electrical charges that are sometimes experienced when recovering drywall dust.
• One 38mm to 47mm adapter (adapts the 38mm hose connector to fit a 47mm vacuum cleaner).

Installatio

1. Install a special drywall dust bag into your vacuum cleaner, following the instructions supplied with the vacuum cleaner.
   CAUTION: Failure to use a vacuum cleaner rated for drywall dust will increase the level of airborne dust particles in the work area. Continued and prolonged exposure to high concentrations of airborne dust may affect the respiratory system function.

2. Connect the vacuum hose to the drywall sander. Open the drywall sander’s hose connector by turning the large nut, counter-clockwise a couple of turns. Push the vacuum hose swivel connector into the drywall sander connector and seal firmly. Turn the large nut clockwise to tighten connector.

3. Install the six “hook & loop” type straps, to prevent tangling of the sander cord and the vacuum hose. Lay the cord and the vacuum hose out parallel to each other. Space the straps at approximately two foot intervals, beginning two feet from the drywall sander. Wrap the long end of each strap around the vacuum hose and close, Then wrap the short end of each strap around the cord and close.

4. Connect the vacuum hose to your vacuum cleaner: Use the 38mm to 47mm adapter if necessary, if your vacuum cleaner requires a special connector (something other than the standard 38mm to 47mm connectors), contact your vacuum cleaner supplier for the proper adapter. To start and stop drywall sander Make sure power circuit voltage is the same as shown on the specification plate on the sander and that the sander switch is OFF. Connect sander to power circuit. The drywall sander is equipped with finger touch switch. Please see as below picture shown: To connect with electric power by press power key, then press ON/OFF key to turn on the machine. And press again ON/OFF key to turn off machine. And power cut by pressing POWER key.

To start and stop drywall sander
Make sure power circuit voltage is the same as shown on the specification plate on the sander and that the sander switch is OFF. Connect sander to power circuit.
The drywall sander is equipped with finger touch switch. Please see as below picture shown:
To connect with electric power by press power key, then press ON/OFF key to turn on the machine. And press again ON/OFF key to turn off machine. And power cut by pressing POWER key.
Speed control
The drywall sander is equipped with a variable speed control. The speed is adjusted by “+”,”-” from numbered “1” through “7” with “1” being the slowest speed (approximately 900 rpm)and “7” being the fastest speed (approximately 2100 rpm). Use the higher speed settings for fast stock removal. Use the lower speed selling to reduce removal rate for more precise control. Brush- typeskirt
A brush-type skirt surrounds the abrasive pad. This skirt serves two purposes: (1) the skirt extends below the surface of the abrasive pad so that it contacts the work surface first. This positions the sanding head parallel to the work surface before the abrasive contacts the work, preventing the abrasive from “gouging” the work. (2) The skirt also helps contain the drywall dust until the vacuum cleaner pulls it away.
CAUTION: DISCONNECT SANDER FROM POWER CIRCUIT.
To replace skirt:

1. Remove abrasive pad (see ABRASIVE PAD REPLACEMENT).
2. Use Phillips screwdriver to remove the six retaining screws
3. Lift the skirt out of housing.
4. Position new skirt to housing and install the six retaining screws.
5. Replace the abrasive pad. Sanding drywall

The drywall sander has a unique articulating sanding head: the head can swivel in multiple directions, allowing the abrasive pad to conform to the work surface. This enables the operator to sand the top, middle and bottom of a wall or ceiling joint without changing: his position.

1. Turn vacuum cleaner switch ON.
   CAUTION: Wear a respirator approved for “Dust and Mist”.

2. Turn drywall sander switch ON.

3. Position drywall sander lightly against work surface (apply just enough pressure to align the sanding head with the work surface).

4. Apply additional pressure to engage the abrasive pad to the work surface: while moving the sander in an overlapping pattern to smooth the drywall compound down to a “featheredge’. Apply ONLY enough pressure to keep the abrasive pad flat against the work. Excessive pressure can cause unacceptable swirl marks and unevenness in the work surface.
   Keep the sander in constant motion while abrasive pad is in contact with the work surface. Use a steady, sweeping motion. Stopping the sander (on the work), or moving the sander erratically can cause unacceptable swirl marks and unevenness in the work surface. NOTE: Do not allow rotating abrasive pad to contact sharp protrusions. Contact with protruding objects (nails, screws, electrical boxes, etc,), can severely damage the abrasive pad.

Abrasive pad replacement
CAUTION: DISCONNECT SANDER FROM POWER SOURCE.

1. Grasp the abrasive pad and the sander housing (clamping the pad to the housing}, to prevent pad rotation.

2. Rotate the pad retaining nut, counter-clockwise and remove.

3. Lift off the large metal washer, and the abrasive pad
   NOTE: When the abrasive pad, is lifted off the sander: the abrasive back- up disc is exposed. Please note that this back-up disc is also covered with an abrasive material. This abrasive material is ONLY used to prevent “slippage” between the back-up disc and the foam backed abrasive pad, it is NOT suitable for use as a sanding abrasive. DO NOT USE THE SANDER WITHOUT A PROPER ABRASIVE PAD INSTALLED (to prevent severe damage to the work).

4. Position new abrasive pad to the back-up disc, making sure that the center hole in the abrasive disc is centered on the hub of the back-up disc.

5. Position the large metal washer the retaining nut to the sander.

6. Rotate the retaining nut clockwise to hand tighten (while holding the abrasive pad).

Longer handle assembly

Care and maintenance

Remove the plug from the socket before carrying out any adjustment, servicing or maintenance.
Your power tool requires no additional lubrication or maintenance. Always store your power tool in a dry place.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
If a fault cannot be rectified, return the mixer to an authorized dealer for repair.
Cleaning
Keep the safety devices, ventilation slots and motor housing as free of dirt and dust as possible. Clean the unit by rubbing it with a clean cloth or blow it clean using low-pressure compressed air.
We recommend that you always clean the unit immediately after using it.
Clean the unit regularly by rubbing it with a damp cloth and a little soft soap. Do not use cleaners or solvents; these will attack the plastic parts in the unit.
You must also ensure that water cannot get into the inside of the unit.

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