8
Adres producenta/ Adresse des Herstellers/ Manufacturer’s Address/ Адрес производителя
GTV Poland Sp. z o.o. Sp. k., ul. Przejazdowa 21, 05-800 Pruszków
EN
USER’S MANUAL
AIR DIE GRINDER HT4R650
Thank you for purchasing our Product. Manufactured to a high standard this product will,
if used according to these instructions andproperly maintained, give you years of trouble
free performance.
WARNING IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE
SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE THE PRO-
DUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS IN-
TENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY
AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
1. 1. SAFETY
Follow all workshop Health & Safety rules, regulations, and conditions when using tool
WARNING! Disconnect from air supply before changing grinding bit or servicing. Maintain die grinder in good condition and replace any
damaged or worn parts. Use genuine parts only. Unauthorised parts may be dangerous and will invalidate the warranty.
WARNING! Check correct air pressure is maintained and not exceeded. We recommend 90 PSI.
Keep air hose away from heat, oil and sharp edges. Check air hose for wear before each use and ensure that all connections are secure.
WARNING! Before each use check grinding bit is secure, and the bit is not worn or damaged, if damaged, replace immediately. Ensure
replacement grinding bits are not damaged (cracks, deformations or splinters etc).
Always use the correct grinding bit suitable for the material being ground. Ensure the maximum speed specification of the bit is higher
than that indicated on the machine data plate.
WARNING! Always wear approved eye or face protection when operating the die grinder.
Use breathing protection in accordance with COSHH regulations if fumes or dust pose a hazard. Wear ear defenders and safety gloves.
Keep hands and body clear of the workpiece when operating the die grinder.
Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
Secure unstable workpiece with a clamp, vice or other adequate holding device.
Keep children and non essential persons away from the working area.
Avoid subjecting grinding bit to excessive strain, always ease grinding bit against workpiece (a harsh impact may break the bit). Maintain
a controlled progression.
- DO NOT get the die grinder wet or use in damp or wet locations.
- DO NOT hold the workpiece by hand. Use clamps or a vice to secure the workpiece.
- DO NOT use the die grinder for a task it is not designed to perform.
WARNING! DO NOT use die grinder if damaged or faulty. Contact your local service agent.
- DO NOT use die grinder unless you have been instructed in its use by a qualified person.
- DO NOT carry the die grinder by the air hose, or yank the hose from the air supply.
- DO NOT direct air from the air hose at yourself or others.
WARNING! DO NOT grind any materials containing asbestos.
- DO NOT turn the die grinder on whilst the grinding bit is in contact with the work piece.
- DO NOT use die grinder where there are flammable liquids, solids or gases such as paint solvents, including waste wiping or cleaning
rags etc. as generated sparks may be dangerous.
- DO NOT touch the workpiece close to the ground surface as it will be very hot. Allow to cool. The workpiece may also be very sharp.
-DO NOT operate die grinder if you are tired or under the influence of alcohol, drugs or intoxicating medication.
When not in use disconnect from air supply and store in a safe, dry, childproof location.
2. INTRODUCTION
One-handed straight type die grinder with aluminium body and trigger with safety catch. Chuck accepts grinding points with Ø6mm
shanks.
3. SPECIFICATION
Model no: HT4R650
Configuration: Straight-Midi
Collet size: ø 3 mm, ø 6 mm
Free speed: 22000 rpm
Air consumption: 198 l/min
Operating pressure: 90 PSI
Air inlet size: 1/4” BSP
Length: 170 mm
Weight: 0.6kg
Noise power/pressure: 100/89 dB(A)
Vibration/uncertainty: 1.6/0.8m/s²
4. PREPARATION
4.1. Air Supply
4.1.1. Recommended hook-up procedure is shown in Fig 1.
WARNING! Ensure the air supply is clean and does not exceed 90PSI while operating the die grinder. Too high an air pressure and
unclean air will shorten the product life due to excessive wear, and may be dangerous causing damage and/or personal injury.
4.1.2. Ensure die grinder air valve (or trigger) is in “off” position before connecting to the air supply.
4.1.3. You will require an air pressure of 90 PSI, and an air flow according to specification.
4.1.4. Drain the compressor’s air tank daily. Water in the air line will damage the die grinder.
4.1.5. Clean the compressor’s air inlet filter weekly.
4.1.6. Line pressure should be increased to compensate for unusually long air hoses (over 8 metres).The minimum hose diameter
should be 1/4” I.D. and fittings must have the same inside dimensions.
4.1.7. Keep hose away from heat, oil and sharp edges. Check hose for wear and make certain that all connections are secure.
Couplings.
4.1.8. Vibration may cause failure if a quick change coupling is connected directly to the die grinder. To overcome this, connect a
leader hose to the grinder. A quick change coupling may then be used to connect the leader hose to the air line recoil hose.
See 1 & 2.
5. OPERATION
WARNING! Ensure you have read, understood and apply safety instructions.
5.1. Connect the die grinder to the air supply.
5.2. To start, hold firmly and push the trigger locking lever forward whilst depressing trigger.
5.3. The bit must be running at its maximum speed before attempting to grind the workpiece.
5.4. Slowly and smoothly bring the grinding stone toward the workpiece (avoid jerky movements).
5.5. Exert adequate pressure on the die grinder to grind according to the type and size of the mterial you are working with. Avoid subjecting
stone to excessive strain or harsh impacts.
5.6. Always hold die grinder firmly and ease grinding stone against workpiece. Maintain a controlled adequate progression.
5.7. CHANGING GRINDING STONES
WARNING! WARNING! Disconnect from the air supply before changing grinding stone.
5.7.1. Check that grinding stones are not damaged in any way such as cracks, deformations or splinters etc. Damaged stones must not be
used.
5.7.1. Use wrenches provided to loosen collet locking collar. Insert grinding bit and re-lock collar.
DO NOT allow die grinder to free run for an extended period of time as this will shorten its life.
6. MAINTENANCE
WARNING! Disconnect die grinder from air supply before changing accessories, servicing or performing maintenance. Replace or
repair damaged parts. Use genuine parts only.
Unauthorised parts may be dangerous and will invalidate the warranty.
6.1. If the air supply does not have an oiler, lubricate the air die grinder daily with a few drops of Sealey air die grinder oil dripped into the air
inlet to prolong its life.
6.2. Clean the die grinder after use.
6.3. Loss of power or erratic action may be due to the following:
a) Excessive drain on the air line. Moisture or restriction in the air pipe. Incorrect size or type of hose connectors. To remedy check the
air supply and follow instructions in chapter 4.
b) Grit or gum deposits in the die grinder may also reduce performance. If your model has an air strainer (located in the area of the
air inlet), remove the strainer and clean it. Flush the die grinder out with gum solvent oil or an equal mixture of oil and paraffin.
Allow to dry before use.
6.4. For a full service contact your local service agent.
6.5. When not in use, disconnect from air supply, clean die grinder and store in a safe, dry, childproof location.
