JULA 071030 Angle Grinder



Read these instructions carefully before use! 

Read these instructions carefully before assembly, installation and use. Contact your dealer if you have any questions concerning the product. Improper use and lack of maintenance can result in serious injury and/or damage to property. Read all warnings and instructions carefully before use. Always take basic safety precautions when using compressed air tools to safeguard against the risk of personal injury.

  • Replace any warning stickers that have become illegible or lost.
  • Only use the tool for its intended purpose.
  • Excessive air pressure or excessively long operation without a load shortens tool life and can entail a risk of personal injury or damage to property.
  • Check the air hose for wear and protect it from heat and sharp edges. Do not carry the tool by the air hose.
  • Falling is a common cause of injury and death. Look out for hose bends in your area of movement and in the work area. Also look out for the part of the hose that is permanently connected to the tool.
  • Continuous use and unsuitable working conditions can cause hand injury. Stop using the tool if your hands become numb or start to hurt. Do not resume work until your hands feel normal again. Seek immediate medical assistance if the problem persists.
  • Keep other people at a safe distance from the work area.

Risk of eye or head injury

Risk Precautions
·                Pneumatic tools can throw out objects such as mounting pieces, metal shavings, swarf, etc., at high speed, which can cause serious eye injuries. ·                Always wear safety glasses that meet ANSI Z87.1 standards and are fitted with side protection.

·                Never leave the tool unattended when connected to the compressed air supply. Always disconnect the air hose when the tool

is not in use.

·                Compressed air can be dangerous. The compressed air system can cause injury to soft tissues such as eyes, ears, etc. Particles or objects carried by the air flow can cause

personal injury.

·                For further protection, you should wear an approved face mask in addition to the eye protection.
·                Tools or accessories can come loose or

break, and parts can be thrown off, hitting the user or other individuals in the work area.

·                Check that all tools and accessories are fitted correctly.

Fire or explosion hazard

Risk Precautions
·                Sanding tools with paper or discs, rotating tools such as drills, percussion tools such as nail guns, staple guns or hammers, as well as reciprocating saws and jigsaws, can generate sparks that can ignite flammable material. ·                Never use tools near flammable substances such as petrol, naphtha, solvents, etc.

·                The work area must be clean, well ventilated and free from flammable materials.

·                Never attempt to power compressed air tools

with oxygen, carbon dioxide or other bottled gas.

·                Never exceed the nominal maximum pressure for tools or accessories. This can cause an explosion resulting in serious personal injury. ·                The feed pressure of the compressed air supply must never exceed the maximum permitted pressure for any accessory.

·                Never connect the tool to a compressed air

supply whose pressure can exceed 13.8 bar.

·                Always check that the compressed air supply

is set to the tool’s rated pressure before connecting the tool.

Risk of hearing damage

Risk Precautions
·                Long-term exposure to noise from compressed air tools can cause permanent hearing impairment. ·                Always use ear protection that meets ANSI

S3.19 standard.

Risk when inhaling

Risk Precautions
·                Cutting tools and sanding tools with paper or discs generate dust and abrasive material that can be harmful to the lungs and respiratory system. ·                Always use a close-fitting face mask or breathing mask when working with such tools.
·                Some materials, such as adhesive and tar,

contain chemicals that produce fumes which

can cause serious injury following long-term exposure.

·                Keep the work area clean, dry and well


Electrical safety

Risk Precautions
·                The use of pneumatic tools to secure live

wires can result in electric shock and, at worst, can be fatal.

·                Never use nail guns or staple guns to secure

live wires.

·                The grip and handle of the tool are not electrically insulated. In the event of contact with a live wire, the tool’s metal parts become live and the user receives a shock

which can, at worst, be fatal.

·                Avoid body contact with earthed surfaces such as pipes, radiators, cookers and refrigerators. There is an increased risk of electric shock if your body is earthed.
·                If a mounting piece comes into contact with

concealed live wires, the user receives a shock which can, at worst, be fatal.

·                Check carefully that there are no concealed electrical wires before you start work.

Risk of becoming caught

Risk Precautions
·                Loose hair, jewellery, loose-fitting clothes, etc., can become caught in tools with moving parts or that drive other moving parts (grinding discs, sockets, etc.). This can cause serious injuries. ·                Do not wear loose-fitting clothing, ties, scarves, etc., as these can get caught in moving parts.

·                Do not wear jewellery, a watch, etc. as these

can get caught in moving parts.

·                Always keep your hands at a safe distance

from rotating parts. Tie up or cover long hair.

·                Always wear suitable clothing and other

protective equipment when working with the


Risk of cuts/burns

Risk Precautions
·                Pneumatic tools can cause serious injuries. ·                Keep your hands and the rest of your body

away from the tool’s moving parts.

Risk of injury

Risk Precautions
·                If the tool is left unattended with the air hose connected, it can be started by unauthorised

individuals and cause personal injury.

·                Always disconnect the air hose when the tool

is not in use. Store the tool out of the reach of children and inexperienced individuals.

·                Pneumatic tools can throw out mounting

pieces or other objects.

·                Only use parts, mounting pieces and accessories that are recommended by the manufacturer.

·                Keep the work area clean. Keep children and onlookers at a safe distance when using the tool.

·                Make sure the work area is well lit.

·                Loose keys, spanners and other tools that are left attached to a rotating part of the tool

may result in injury.

·                Do not use tyre filling nozzles when blow


·                Serious injury can occur if a pneumatic tool is started by mistake during maintenance or tool changing. ·                Always disconnect the air hose before lubrication and before assembling the tool and/or accessories.

·                Never carry the tool by the hose.

·                Avoid accidental starting. Do not carry the tool with your finger on the trigger when the tool is connected to the compressed air supply.

·                Repairs must only be carried out by an authorised service centre.

·                Compressed air tools can cause the

workpiece to move on contact, which can

result in personal injury.

·                Secure the workpiece with clamps or similar,

so that it cannot move.

·                Carelessness or lack of concentration can cause you to lose control of the tool, which can result in personal injury. ·                Never use compressed air tools if you are under the influence of drugs, alcohol or medication.

·                Do not overreach. Always maintain a firm

footing and good balance.

·                Keep the handles clean, dry and free from oil

and grease.

·                Pay attention to what you are doing. Always be careful when using the equipment. Use your common sense. Do not use the tool if

you are tired.

·                Tools and accessories (such as grinding discs, chisels, sockets, drills, nail guns, staple guns) of a poor quality, or that are damaged or unsuitable for the purpose, can shatter during use, throwing out parts and causing serious injury. ·                  Only use tools and accessories that are designed for the tool’s rated speed.

·                Never use tools that have been dropped, exposed to knocks or bumps, or that are damaged.

·                Only use sockets that are approved for

impact tools together with impact wrenches.

·                Do not overload the tool. Let the tool do the


·                Mounting pieces can be thrown out, causing

serious injury or damage to property.

·                Never point the tool’s outlet opening at yourself or at anyone else.

·                Never press the trigger unless the tool’s contact safety catch is pressed against the workpiece.

·                Never attempt to drive mounting pieces into hard materials such as steel, concrete or tiles/clinker.

·                Never drive in a mounting piece on top of another one.

·                Position the tip of the tool carefully, so that

the mounting pieces are driven in at exactly the right place.

·                Poorly maintained tools and accessories can cause malfunctions that result in serious personal injury. ·                Maintain the tool in good order.

·                Keep cutting tools sharp and clean. Properly

maintained cutting tools with sharp cutting edges are less likely to jam and are easier to


·                Damaged tools can shatter during use. ·                Make sure that moving parts are properly adjusted and do not jam and that no parts are incorrectly fitted or damaged. Check for other factors that could affect the operation of the power tool. If the tool is damaged, it

must be repaired before being used again.

·                Only use accessories recommended by the manufacturer for the specific tool. ·                Accessories that are not intended for the tool can cause personal injury.


  • Capacity 1/4″ (6.35 mm)
  • Speed (no load) 20,000 rpm
  • Average air consumption 100 l/min
  • Operating air pressure 6.3 bar
  • Air intake 1/4″
  • Air hose 3/8” inner diameter
  • Total length 155 mm
  • Net weight 0.53 kg
  • Sound power level, LwA 99 dB(A), K= 3 m/s2
  • Sound pressure level, LpA 88 dB (A), K= 3 m/s2
  • Vibration level 2,9 m/s2

Always wear ear protection.
The declared vibration and noise value, which has been measured by a standardised test method, can be used to compare different tools with each other and for a preliminary assessment of exposure. The measurement values have been determined in accordance with EN ISO 11148-9:2011.
WARNING! The actual vibration and noise level when using power tools may differ from the specified maximum value, depending on how the tool is used and what kind of workpiece is processed. It is therefore necessary to determine which safety precautions are required to protect the user, based on an estimate of exposure in actual operating conditions (taking into account all stages of the work cycle, e.g. the time when the tool is switched off and when it is idling, in addition to the start-up time).



  1.  Pneumatic tool
  2.  Air hose, inner diameter 3/8’’
  3.  Lubricating device
  4.  Pressure regulator
  5.  Filter
  6.  Shut-off valve
  7.  Anti-vibration hose
  8.  Quick-release coupling
  9.  Empty daily
  10.  Pipe and connection, min. 1/2”
  11.  Air drier
  12.  Pipe and connection, min. 1”
  13.  Compressor
  14.  Automatic drainage
  15.  Empty daily


Compressed air supply

  1.  Check that the relevant compressor provides sufficient air flow.
  2.  The tool must always be turned off when it is connected to the compressed air supply.
  3.  6.2 bar is the normal operating air pressure for the tool. Excessively high pressure and contaminated air cause the tool to wear unreasonably quickly, and can also entail a risk of personal injury or damage to property.
  4.  Every day, drain off any water from the compressor’s air container and empty the air hoses of any condensate that has accumulated. Otherwise, water from the air hoses can penetrate the tool and damage it.
  5.  Clean the air intake filter cartridge each week. The chart below shows the recommended connection.
  6.  If hoses are very long (normally longer than 8 metres), the line pressure must be increased to compensate for the pressure drop. The minimum inner diameter of the hose is 1/4”. Couplings must have the same inner diameter. An air hose with an inner diameter of 3/8” is normally recommended for optimum tool performance.
  7.  Use appropriate hoses and couplings. We do not recommend connecting quick-release couplings directly to the tool, as they can cause malfunction as a result of vibration. Instead, connect a hose to the tool and install a quick-release coupling between the air hose from the compressor and the anti-vibration hose that is attached to the tool.
  8.  Inspect each hose for wear before use. Make sure that all connections are secure.


  1.  Lubricate the tool before use as instructed in the section on care and maintenance.
  2.  Disconnect the compressed air supply.
  3.  Lubricate the gears with a grease gun (not included) through the lubricating valve. The gears must be lubricated every working day.JULA-071030-Angle-Grinder-FIG-2
  4. Remove the chuck sleeve by rotating it anti-clockwise, either by hand or using a spanner, while holding the chuck mount with another spanner.JULA-071030-Angle-Grinder-FIG-3
  5.  Fit a sanding accessory in the chuck.JULA-071030-Angle-Grinder-FIG-4
  6. Tighten the chuck sleeve by screwing it clockwise using a spanner, while holding the chuck mount with another spanner. Check that the chuck sleeve is properly tightened.JULA-071030-Angle-Grinder-FIG-5
    NOTE! Only use accessories with at least the same permitted speed as that of the tool.
  7. Remove the cover from the air intake and connect the air hose to the tool. Set the air pressure to 6.2 bar.JULA-071030-Angle-Grinder-FIG-6
  8. Push the trigger catch forwards and squeeze the trigger. The speed of the tool increases the longer the trigger is squeezed. The tool begins to rotate.JULA-071030-Angle-Grinder-FIG-7


Lubricate the tool with pneumatic oil (not supplied) every day or before each use. Compressed air oil is available from well-stocked hardware stores. SAE 10 oil, sewing machine oil or similar, with moisture absorber, corrosion inhibitors, metal wetting agent and EP additives can be used. Do not use flushing oil. During continuous operation, the tool must be lubricated every hour or two. The tool can be lubricated with a line-mounted lubricating device or manually. Follow the instructions below for manual lubrication.

  1.  Disconnect the compressed air supply.JULA-071030-Angle-Grinder-FIG-8
  2.  Apply a few drops of pneumatic oil in the tool’s air intake. Do not use oil with a high viscosity. This can impair tool performance.JULA-071030-Angle-Grinder-FIG-9
  3.  Connect the tool to the compressed air supply. Operate the tool with no load for a few seconds to distribute the oil. Any surplus oil may be thrown out from the chuck. Aim the tool in a safe direction.
  4.  Before putting the tool away after use, disconnect the air hose and apply 4 or 5 drops of pneumatic oil in the air intake. Reconnect the air hose and operate the tool for approx. 30 seconds to distribute the oil evenly. This will ensure the tool lasts longer.
  5.  Do not store in a damp location. This can result in corrosion damage to the mechanism. Always lubricate the tool before storage.
  6.  When a product has come to the end of its useful life it must be recycled in compliance with regulations in force. The tool must not be incinerated.


Problem Possible cause Action
The tool operates slowly or not at all. 1.             The tool is clogged.

2.             No oil in the tool.

3.             Low air pressure.

4.             Air hose leaking.

5.             Pressure drop.

6.             Worn rotor blades.

7.             Water is emerging through the tool’s air outlet.

1.             Clean the tool with pneumatic oil or solvent.

2.             Lubricate the tool according to the lubrication instructions.

3.             a. Set the regulator on the tool to max.

b. Set the regulator on the compressor to the maximum permitted operating pressure for the tool (6.2 bar).

4.             Tighten and seal any leaking connections. Use sealing tape.

5.             a. Use a hose with the correct dimensions. A long hose or a tool that has a high air consumption may require a hose with an inner diameter of 1/2” or larger, depending on the total hose length.

b. Do not use several hoses linked together with quick- release couplings. This will cause a pressure drop and cause the tool to work less efficiently. Connect the hoses directly.

6.             Replace the rotor blades.

7.             Drain out the water from the air container (see the compressor manual). Lubricate the tool and operate until no water can be seen. Lubricate the tool again and operate for 1–2 seconds.

Abnormal vibrations and/or

heat in the tool.

Inadequate lubrication. Follow the lubrication instructions.

NOTE! Contact your dealer if you detect a problem that is not included in this troubleshooting guide.
Jula reserves the right to make changes. www.jula.com

Documents / Resources

JULA 071030 Angle Grinder [pdf] Instruction Manual
071030, Angle Grinder, 071030 Angle Grinder


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