VONROC AG502AC Angle Grinder Instruction Manual

: June 5, 2024
: VONROC

Table of Contents

VONROC AG502AC Angle Grinder
SAFETY INSTRUCTIONS
ADDITIONAL SAFETY WARNINGS FOR ANGLE GRINDER
MACHINE INFORMATION
TECHNICAL SPECIFICATIONS
DESCRIPTION
OPERATION
MAINTENANCE
ENVIRONMENT
WARRANTY
References
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VONROC AG502AC Angle Grinder

SAFETY INSTRUCTIONS

Read the enclosed safety warnings, the additional safety warnings and the instructions. Failure to follow the safety warnings and the instructions may result in electric shock, ﬁre and/or serious injury. Save the safety warnings and the instructions for future reference.

The following symbols are used in the user manual or on the product:

Read the user manual.
Risk of personal injury.
Risk of electric shock.
Immediately remove the mains plug from the mains if the mains cable becomes damaged and during cleaning and maintenance.
Risk of ﬂying objects. Keep bystanders away from the work area.
Wear safety goggles.
Wear hearing protection.
Wear safety gloves.
Do not press the spindle lock button while the motor is running.
Risk of ﬁre.
Double insulated.
Do not dispose of the product in unsuitable containers.
The product is in accordance with the applicable safety standards in the European directives.

GENERAL POWER TOOL SAFETY WARNINGS
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

Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
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.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

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.
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.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
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.
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.
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.

Personal safety

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.
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.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to a power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your ﬁnger on the switch or energising power tools that have the switch on invites accidents.
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.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. The use of dust collection can reduce dust-related hazards.
Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

Power tool use and care

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.
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.
Disconnect the plug from the power source and/or the battery pack from the power tool be-fore making any adjustments, changing acces-sories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of child-ren 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.
Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

Battery tool use and care

Recharge only with the charger speciﬁed by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of ﬁre when used with another battery pack.
Use power tools only with speciﬁcally designated battery packs. Use of any other battery packs may create a risk of injury and ﬁre.
When the battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a ﬁre.
Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, ﬂush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
Do not use a battery pack or tool that is damaged or modiﬁed. Damaged or modiﬁed batteries may exhibit unpredictable behaviour resulting in ﬁre, explosion or risk of injury.
Do not expose a battery pack or tool to ﬁre or excessive temperature. Exposure to ﬁre or temperature above 130 °C may cause explosion. NOTE The temperature „130 °C“ can be replaced by the temperature „265 °F“.
Follow all charging instructions and do not charge the battery pack or tool outside the temperature range speciﬁed in the instructions. Charging improperly or at temperatures outside the speciﬁed range may damage the battery and increase the risk of ﬁre.

Service

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.
Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

ADDITIONAL SAFETY WARNINGS FOR ANGLE GRINDER

This power tool is intended to function as a grinder tool. Read all safety warnings, instructions, illustrations, and speciﬁcations provided with this power tool. Failure to follow all instructions listed below may result in electric shock, ﬁre, and/or serious injury.
Operations such as sanding, wire brushing, and polishing are not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal injury.
Do not use accessories that are not speciﬁcally designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.
The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their rated speed can break and ﬂy apart.
The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.
Threaded mounting of accessories must match the grinder spindle thread. For accessories mounted by ﬂanges, the arbor hole of the accessory must ﬁt the locating diameter of the ﬂange. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.
Do not use a damaged accessory. Before each use inspects the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.
Wear personal protective equipment. Depending on the application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping ﬂying debris generated by various operations. The dust mask or respirator must be capable of ﬁltrating particles generated by your operation. Prolonged exposure to high-intensity noise may cause hearing loss.
Keep bystanders a safe distance away from the work area. Anyone entering the work area must wear personal protective equipment. Frag-ments of workpiece or of a broken accessory may ﬂy away and cause injury beyond the immediate area of operation.
Hold the power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord.Cutting accessory con-tacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.
Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.
Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.
Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.
Do not operate the power tool near ﬂammable materials. Sparks could ignite these materials.
Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or sna-gged rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding. 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 the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on the direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions. Kick-back is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.

Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use an auxiliary handle, if provided, for maximum control over kickback or torque reaction during startup. The operator can control torque reactions or kickback forces if proper precautions are taken.
Never place your hand near the rotating accessory. The accessory may kick back over your hand.
Do not position your body in the area where the power tool will move if kickback occurs. Kickback will propel the tool in a direction opposite to the wheel’s movement at the point of snagging.
Use special care when working corners, sharp edges, etc. Avoid bouncing and snagging the accessory. Corners, sharp edges, or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.
Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control.

SAFETY WARNINGS SPECIFIC FOR GRINDING AND ABRASIVE CUTTING-OFF OPERATIONS

Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel. Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe.
The grinding surface of centre depressed wheels must be mounted below the plane of the guard lip. An improperly mounted wheel that projects through the plane of theguard lip cannot be adequately protected.
The guard must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. The guard helps to protect the operator from broken wheel fragments, accidental contact with wheel and sparks that could ignite clothing.
Wheels must be used only for recommended applications. For example: do not grind with the side of cutoff wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces ap-plied to these wheels may cause them to shatter.
Always use undamaged wheel ﬂanges that are of correct size and shape for your selected wheel. Proper wheel ﬂanges support the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel ﬂanges.
Do not use worn-down wheels from larger power tools. Wheel intended for larger power tool is not suitable for the higher speed of a smaller tool and may burst.

Electrical safety
When using electric machines always observe the safety regulations applicable in your country to reduce the risk of ﬁre, electric shock and personal injury. Read the following safety instructions.

Always check that the voltage of the power supply corresponds to the voltage on the rating plate label.
Class II machine – Double insulation – You don’t need any earthed plug.

MACHINE INFORMATION

Intended use
Your angle grinder has been designed for grinding masonry and steel materials without the use of water. For cutting, a special protection guard must be used (not included)

TECHNICAL SPECIFICATIONS

Model No.	AG502AC
Mains voltage	220-240V~
Mains frequency	50 Hz
Power input	650 W
No-load speed	12.000/min
Grinding disc Diameter: Bore:

125 mm

22.2 mm

Wear hearing protection.

Vibration level
The vibration emission level stated in this instruction manual has been measured in accordance with a standardized test given in EN60745; it may be used to compare one tool with another and as a preliminary assessment of exposure to vibration when using the tool for the applications mentioned.

Using the tool for different applications, or with different or poorly maintained accessories, may signiﬁcantly increase the exposure level.
The times when the tool is switched off or when it is running but not actually doing the job, may signiﬁcantly reduce the exposure level.

Protect yourself against the effects of vibration by maintaining the tool and its accessories, keeping your hands warm, and organizing your work patterns.

DESCRIPTION

The numbers in the text refer to the diagrams on pages 2 – 3

Fig. A

On/off switch
Spindle lock button
Spindle
Guard
Main grip
Auxiliary grip

OPERATION

Before assembly, always switch off the machine and remove the mains plug from the mains.

Mounting and removing the guard & grinding disc (ﬁg. B)
Do not use the machine without a guard.

Mounting

Place the machine on a table with the spindle (3) facing upwards.
Keep the spindle lock button (2) pressed and remove the ﬂange (7) using the ﬂange key (8).
If necessary, remove the grinding disc (9).
Remove the ﬂange (10).
Mount the guard (4). Secure the guard (4) by tightening the screw (11) and the nut (12).
Mount the ﬂange (10).
If necessary, mount the grinding disc (9).
Keep the spindle lock button (2) pressed and mount the ﬂange (7) using the ﬂange key (8).

Removing

Place the machine on a table with the spindle (3) facing upwards.
Keep the spindle lock button (2) pressed and remove the ﬂange (7) using the ﬂange key (8).
If necessary, remove the grinding disc (9).
Remove the ﬂange (10).
Remove the guard (4) by loosening the screw (11) and the nut (12).
Mount the ﬂange (10).
If necessary, mount the grinding disc (9).
Keep the spindle lock button (2) pressed and mount the ﬂange (7) using the ﬂange key (8).

Mounting and removing the auxiliary grip (ﬁg. C) Mounting

Tighten the auxiliary grip (6) into one of the mounting holes (13).

Removing

Loosen the auxiliary grip (6) from the mounting hole (13).

Switching on and off (ﬁg. A)

To switch on the machine in continuous mode, slide the on/off switch (1) in the direction of the grinding disc.
To switch off the machine, press the lower part of the on/off switch (1).

Hints for optimum use

Clamp the workpiece. Use a clamping device for small workpieces.
Draw a line to deﬁne the direction in which to guide the grinding disc.
Hold the machine with both hands.
Switch on the machine.
Wait until the machine has reached full speed.
Place the grinding disc on the workpiece.
Slowly move the machine along the pre-drawn line, ﬁrmly pressing the grinding disc against the workpiece.
Do not apply too much pressure on the machine. Let the machine do the work.
Switch off the machine and wait for the machine to come to a complete standstill before putting the machine down.

MAINTENANCE

Always disconnect the machine from the main power supply before carrying out any maintenance work. Clean the machine casings regularly with a soft cloth, preferably after each use. Make sure that the ventilation openings are free of dust and dirt. Re-move very persistent dirt using a soft cloth moistened with soapsuds. Do not use any solvents such as gasoline, alcohol, ammonia, etc. Chemicals such as these will damage the synthetic components. Only use sharp and undamaged grinding discs.

ENVIRONMENT

Faulty and/or discarded electrical or electronic apparatus have to be collected at the appropriate recycling locations.

Only for EC countries
Do not dispose of power tools into domestic waste. According to the European Guideline 2012/19/EC for Waste Electrical and Electronic Equipment and its implementation into national right, power tools that are no longer usable must be collected separately and disposed of in an environmentally friendly way. WWW.VONROC.COM.

WARRANTY

VONROC products are developed to the highest quality standards and are guaranteed free of defects in both materials and workmanship for the period lawfully stipulated starting from the date of original purchase. Should the product develop any failure during this period due to defective material and/or workmanship then contact VONROC directly.

The following circumstances are excluded from this guarantee:

Repairs and or alterations have been made or attempted to the machine by unauthorized service centers;
Normal wear and tear;
The tool has been abused, misused or improperly maintained;
Non-original spare parts have been used.

This constitutes the sole warranty made by the company either expressed or implied. There are no other warranties expressed or implied that extend beyond the face hereof, herein, including the implied warranties of merchantability and ﬁtness for a particular purpose. In no event shall VONROC be liable for any incidental or consequential damages. The dealer’s remedies shall be limited to repair or replacement of nonconforming units or parts.
The product and the user manual are subject to change. Speciﬁcations can be changed without further notice.