Sumake ST-2561 User manual

SUMAKE PNEUMATIC TOOLS
Air Needle Scaler
ST-2561
SUMAKE INDUSTRIAL CO., LTD
4F,NO.351,Yangguang St.,Neihu District TAIPEI, TAIWAN, ZIP:114-91
Specification:
Blow Per Minute
4,000 b.p.m.
Piston Stroke
27 mm
No. of Needle
Φ3x180x23pcs
Overall Length
13.19” (335 mm)
Air Consumption
10 CFM (285 L/min)
Air Inlet (PT)
3/8” (10 mm)
Air Hose (I.D.)
3/8” (10 mm)
Air Pressure
90 psi (6.3 bar)
Net Weight
6.16 lbs (2.8 kg)
Noise and Vibration:
Vibration
EN ISO 28927-9
Noise
EN ISO 15744
Remark
Load:
12.89 m/s²
Sound Pressure Level
load: 96.3 dB(A)
Please always
wear ear
protector at
environment
noise level > 80
dB(A) due to
risk of
impaired
hearing!
Sound power level
load: 107.3 dB(A)
Uncertainty
K= 1.5 m/s²
Uncertainty
K= 3dB
ST-2561-S-2109H-JIF

ECDECLARATION OF CONFORMITY
We: SUMAKE INDUSTRIAL CO., LTD.
4F, No. 351, Yangguang St., Neihu District, Taipei City, Taiwan
declare in sole responsibility that the equipment
Equipment：AIR NEEDLE SCALER
Model/ Serial No.：ST-2561
to which this declaration applies, complies with these normative documents:
Machinery Directive: 2006/42/EC
and conforms to the following EN standard,
EN ISO 12100: 2010
EN ISO 11148-4:2012
Name and Signature/Position Date and Place
2013/6/28
MikeSu–ManagingDirector Taipei, Taiwan
ST-2561-D-1310D-JIF

1. Main Applications
․de-slagging, de-sputtering of welds
․shot-peening after welding
․cleaning metal surfaces of rust and
scale
․stripping paint
․cleaning castings
․removing cores
․cleaning brick and stone-work
․cleaning ship plates, barges, buoys
2. Cautions for use
2-1 Air pressure
Maximum performance is displayed at
a gauge pressure of 6 kg/cm². Range-
-wise, this is an air pressure from 5 to 7
kg/cm² (70 to 100 psi)
2-2 Air line
Use a 3/8” air hose between the
compressor and the tool. Compressed air
is cooled and its water content separated,
as soon as the air leaves the compressor.
A portion of the water content, however, is
condensed in the piping, and can enter the
tool mechanism, and may cause trouble.
Always install an air filter and an oiler be-
tween the compressor and the tool. The
compressor used should have 1 or higher
horsepowers in the case of using each one
unit.
2-3 Air hose
Blow compressed air through the supply
hose before connecting the tool.
2-4 Lubrication
Before connecting the hose apply 4 or 5
drops of #60 spindle oil at the air inlet. (No
lubrication is required when oiler is used)
Use of a thicker oil can lead to reduced
performance or malfunction. If a thicker oil
is used by accident, wash it away
immediately. Also, every 3 or 4 hours of
operation oiling is necessary.
2-5 Idle running
Idle operation will shorten the life of the
tool and needles and should be avoided.
3. Cautions for operation
The quick-reciprocating needles of Jet
Chisel adjust automatically to a surface
contour during cleaning. Slight pressure of
the needles against the work surface is
sufficient for maximum performance. An
upright tool position is best. The tool will
efficiently clean uneven surfaces, get into
grooves, corners, and gaps, clean outside
and inside surfaces, and clean spaces
inaccessible and too confined for other
types of tools.
We can supply Φ3 needles for ST-2561
Change needles according to your
work. Change the kind of needle guide
according to your work.
The broken heads of needles must be
removed from the cylinder, otherwise
continuous operation with them causes
malfunction and shortened the life of
needle supporter.
4. Changing Needles
(1) Unfasten the hexagon socket head bolt
of the needle guide with the hexagon
wrench key and pull out the needle guide.
(2)Remove the safety band from the grip
groove.
(3)Loosen the stop ring and remove. Take
out the needle supporter by pulling out the
needles.
(4)Extract the needles. The needles must
be changed whenever damaged during
operation.
(5)After changing needles, assemble in the
reverse manner of disassembly.
5. Storage
Avoid storing the tool. in a location subject
to high humidity. If the tool is left as it is
used, residual moisture on the inside can
cause rusting. Before storing, and after
operation oil the tool at the air inlet with
spindle oil and run it for a short time.
6. Ordering Service Parts
★For further operational and handling
information or for replacement of parts and
components, contact the sale agent from
whom you purchased the tool or the ser-
vice division of our company.
★In ordering parts and components, give
parts number(s), name and part quantities.
ST-2561-I-1105B-JI

ST-2561 AIR NEEDLE SCALER
PARTS LIST
No. Parts No. Description Q'ty No. Parts No. Description Q'ty
1 2561-01 Needle Guide Ass'y 1 13
2561-13 Throttle Valve Ass'y 1
2 2561-02 Lock Ring 1 14
2561-14 O-Ring (d8.8xW1.9) (P9) 1
3 2561-03 Nut (5/16) 1 15
2561-15 Valve Cap 1
4 2561-04 Cap Head Screw (5/16"x1-3/4") 116
2561-16 Piston 1
2561-05 Needle (Φ3mmx180L) 23 17
2561-17 Rear Washer 1
2561-05A Needle (Φ2mmx180L) 53 18
2561-18 Rear Plug 1
2561-06 Needle Supporter (3mm) 1 19
2561-19 Throttle Lever 1
2561-06A Needle Supporter (2mm) 1 20
2561-20 Spring Pin (Φ3X24L) 1
7 2561-07 Throttle Anvil 1 21
2561-21 Air Inlet 1
8 2561-08 Cylinder 1 22
2561-22 Throttle Spring 1
9 2561-09 Cylinder Lock Pin (Φ5x8L) 123
2561-23 O-Ring (d3.8xW1.9) (P4) 1
10 2561-10 Front Washer 1 23-1 2561-23-1 O-Ring (d4.8xW1.9) (P5) 1
12 2561-12 Housing Sub Ass'y 1 24 2561-24 Hex. Wrench (6mm) 1
ST-2561-P-2003D-JI
5
6

SCALER
Original instructions
SUMAKE Industrial Co. Ltd.

1
Read all these safety instructions before operating this product and save these instructions.
The tool has been manufactured in conformity with the instruction of EU machine directive. The EU mark will be considered void in the event
of inexpert repairs, the use of non-original parts and in case of non-observance of the safety instructions in the user’s manual.
Possible direct or indirect consequential damages are not the responsibility of SUMAKE Industrial co., Ltd.
General safety rules:
1. Watch the tool at all times when in use.
2. People under the influence of alcohol or drugs are not allowed to use, repair or maintain the tool.
3. Keep unqualified persons, children, etc. away from the tool.
4. Keep work area clean and with sufficient daylight or artificial lighting. The work area on which the machine is used must be cleaned up.
Disorder is a potential cause of accidents.
5. Danger of explosion. Never use oxygen and combustible gas as an air supply for the tool which many be ignited by spark and cause fire
or explosion.
6. Never use gasoline or other flammable liquids to clean the tool.
7. Do not use air tools in potentially explosive atmospheres such as in the presence of flammable liquids, cleaning solvents, fluid energy or
stored gases.
8. Do not expose air tools to rain. Do not use air tools in damp or wet locations.
9. When a fault or failure is detected, the tool must immediately be disconnected from the air supply and returned for repair.
10. It is not permitted to modify the tool in any way.
11. When not in use, keep tools in a dry place, either locked up or in a high place, out of the reach of children.
12. Do not force small air tools to do the job of a heavy –duty task. Do not use air tool for purpose of which was not intended.
13. Wear suitable ear protection at environment noise level >80dB(A) and safety spectacles when using the tool. Always wear approved
safety goggles if work in dusty. This also applies to other persons in the nearby vicinity.
14. Do not wear loose clothing or jewelry. They can be caught in moving parts. Rubber gloves and non-skid foot wear are recommended
when working outdoors. Wear protective hair covering to contain long hair.
15. Keep proper footing and balance at all times.
16. Use clamps or a vice to hold work-piece. It is safer than using your hand and free both hands to operate the air tool.
17. When not use, before performing service or changing accessories, please disconnect tool from air compressor.
18. Do not carry plugged in air tool with your finger on the switch trigger. Be sure switch is in the “OFF” position when connecting to air
supply.
19. Watch what you are doing. Use common sense, even unsafe situation or unbalanced positions, particularly when you are tired.
20. Air powered tools can vibrate in use. Vibration, repetitive motions or uncomfortable positions may be harmful to your hands or arms.
Stop using any tool if discomfort, tingling feeling or pain occurs. Seek medical advice before resuming use.
21. For multiple hazards, read and understand the safety instructions before installing, operating, repairing, maintaining, changing
accessories on, or working near the non-rotary percussive power tool. Failure to do so can result in serious bodily injury.
22. Only qualified and trained operators should install, adjust or use the non-rotary percussive power tool.
23. Do not modify this non-rotary percussive power tool. Modifications can reduce the effectiveness of safety measures and increase the
risks to the operator.
24. Do not discard the safety instructions; give them to the operator.
25. Do not use the non-rotary percussive power tool if it has been damaged.
26. Tools shall be inspected periodically to verify that the ratings and markings required by this part of EN ISO 11148 are legibly marked on
the tool. The employer/user shall contact the manufacturer to obtain replacement marking labels when necessary.
Safety precautions for projectile hazards
1. Failure of the workpiece, of accessories or even of the inserted tool itself can generate high-velocity projectiles. Disconnect the non-rotary
percussive power tool from the energy source when changing inserted tool or accessories.
2. Be aware that failure of the workpiece, or accessories, or even of the inserted tool itself can generate high-velocity projectiles.
3. Always wear impact-resistant eye protection during the operation of the non-rotary percussive power tool.
4. The grade of protection required should be assessed for each use.
5. For overhead work, wear a safety helmet.
6. The risks to others should also be assessed at this time.
7. Ensure that the workpiece is securely fixed.
8. Never operate a tool unless the inserted tool is retained in the tool with a proper retainer.
9. To avoid injury, retainer parts shall be replaced when they become worn, cracked or distorted.
10. Hold the inserted tool firmly against the work surface before starting the tool.
Safety precautions for operating hazards
1. Use of the tool can expose the operator's hands to hazards, including impacts, cuts and abrasions and heat. Wear suitable gloves to
protect the hands.
2. Operators and maintenance personnel shall be physically able to handle the bulk, weight and power of the tool.
3. Hold the tool correctly; be ready to counteract normal or sudden movements and have both hands available.
4. Maintain a balanced body position and secure footing.
5. Release the start-and-stop device in the case of an interruption of the energy supply.
6. Use only lubricants recommended by the manufacturer.
7. Avoid direct contact with the inserted tool during and after use as it can become hot.
8. Personal protective safety glasses shall be used; suitable gloves and protective clothing are recommended.
Safety precautions for repetitive motions hazards
1. When using a non-rotary percussive power tool to perform work-related activities, the operator can experience discomfort in the hands,
arms, shoulders, neck or other parts of the body.
2. While using a non-rotary percussive power tool, the operator should adopt a comfortable posture whilst maintaining a secure footing and

2
avoiding awkward off-balanced postures. The operator should change posture during extended tasks, which can help avoid discomfort
and fatigue.
3. If the operator experiences symptoms, such as persistent or recurring discomfort, pain, throbbing, aching, tingling, numbness, burning
sensations or stiffness, these warning signs should not be ignored. The operator should tell the employer and consult a qualified health
professional.
Safety precautions for accessory hazards
1. Disconnect the non-rotary percussive power tool from the energy supply before changing the inserted tool or accessory.
2. Only use sizes and types of accessories and consumables that are recommended by the non-rotary percussive power tool manufacturer.
3. Avoid direct contact with the inserted tool during and after use, as it can be hot or sharp.
Safety precautions for workplace hazards
1. Slips, trips and falls are major causes of workplace injury. Be aware of slippery surfaces caused by use of the tool and also of trip hazards
caused by the air line or hydraulic hose.
2. Proceed with care in unfamiliar surroundings. Hidden hazards, such as electricity or other utility lines, can exist.
3. The non-rotary percussive power tool is not intended for use in potentially explosive atmospheres and is not insulated against coming into
contact with electric power.
4. Make sure there are no electrical cables, gas pipes, etc., that can cause a hazard if damaged by use of the tool.
Safety precautions for dust and fume hazards
1. Dust and fumes generated when using non-rotary percussive power tools can cause ill health (for example cancer, birth defects, asthma
and/or dermatitis); risk assessment and implementation of appropriate controls for these hazards are essential.
2. Risk assessment should include dust created by the use of the tool and the potential for disturbing existing dust.
3. Operate and maintain the non-rotary percussive power tool as recommended in the instruction handbook, to minimize dust or fume
emissions.
4. Direct the exhaust so as to minimize the disturbance of dust in a dust-filled environment. Where dust or fumes are created, the priority
shall be to control them at the point of emission.
5. All integral features or accessories for the collection, extraction or suppression of airborne dust or fumes should be correctly used and
maintained in accordance with the manufacturer's instructions.
6. Select, maintain and replace the consumable/inserted tool as recommended in the instructions, to prevent an unnecessary increase in
dust or fumes.
7. Use respiratory protection in accordance with employer's instructions and as required by occupational health and safety regulations.
Safety precautions for noise hazards
1. Unprotected exposure to high noise levels can cause permanent, disabling hearing loss and other problems, such as tinnitus (ringing,
buzzing, whistling or humming in the ears).
2. Risk assessment and implementation of appropriate controls for these hazards are essential.
3. Appropriate controls to reduce the risk may include actions, such as damping materials to prevent workpieces from “ringing”.
4. Use hearing protection in accordance with employer's instructions and as required by occupational health and safety regulations.
5. Operate and maintain the non-rotary percussive power tool as recommended in the instruction handbook, to prevent an unnecessary
increase in noise levels.
6. Select, maintain and replace the consumable/inserted tool as recommended in the instruction handbook, to prevent an unnecessary
increase in noise.
7. If the non-rotary percussive power tool has a silencer, always ensure it is in place and in good working order when the non-rotary
percussive power tool is operating.
Safety precautions for vibration hazards
1. Exposure to vibration can cause disabling damage to the nerves and blood supply of the hands and arms.
2. Wear warm clothing when working in cold conditions and keep your hands warm and dry.
3. If you experience numbness, tingling, pain or whitening of the skin in your fingers or hands, stop using the non-rotary percussive power
tool, tell your employer and consult a physician.
4. Operate and maintain the non-rotary percussive power tool as recommended in the instruction handbook, to prevent an unnecessary
increase in vibration. Do not hold the inserted tool with the free hand, as this increases vibration exposure.
5. Hold the tool with a light but safe grip, taking account of the required hand reaction forces, because the risk from vibration is generally
greater when the grip force is higher.
6. Keep suspended handles in the central position and avoid pushing the handles into the end stops.
Additional safety instructions for pneumatic power tools
1. Air under pressure can cause severe injury.
2. Always shut off air supply, drain hose of air pressure and disconnect tool from air supply when not in use, before changing accessories or
when making repairs.
3. Never direct air at yourself or anyone else.
4. Whipping hoses can cause severe injury. Always check for damaged or loose hoses and fittings.
5. Cold air shall be directed away from the hands.
6. Do not use quick-disconnect couplings at tool inlet. Use hardened steel (or material with comparable shock resistance) threaded hose
fittings.
7. Whenever universal twist couplings (claw couplings) are used, lock pins shall be installed and whipcheck safety cables shall be used to
safeguard against possible hose-to-tool and hose-and-hose connection failure.
8. Do not exceed the maximum air pressure stated on the tool.
9. Never carry an air tool by the hose.
Specific safety instructions
Warnings shall be given about any specific or unusual hazards associated with the use of the non-rotary percussive power tool. Such

3
warnings shall indicate the nature of the hazard, the risk of injury and the avoidance action to take.
General preparation and connection:
1. Before connecting the air hose, apply 4 to 5 drops of SAE#10-20 spindle oil at the air inlet. Also, every 3 to 4 hours of operation, oiling is
necessary. Twist Teflon thread tape to ensure a proper seal air inlet. Then tighten the air coupler into air tool.
2. The supplied compressed air must be clean and dry, with the appropriate oil mist. Use an air treatment unit; filter, regulator and
lubricator.
3. Please refer Fig.1 illustration shows the correct mode of connection to the air supply system which will increase the efficiency and useful
life of the tool.
4. The quick connect coupling and hose must have sufficient air flow capacity. We recommend an air hose with a diameter of 10mm (3/8”).
5. To ensure a good performance. The operation pressure at the compressed air inlet should not exceed 6.2bar (90psi) (unless indicated
otherwise). Higher operating pressures may cause damaged or excessive wear. Operating pressures below 5.3bar may cause pressure
or power loss.
Risk of injury
1. Compressed air can inflict serious injuries. Therefore never point the air hose at another person or yourself.
2. Shut –off the air supply and disconnect the tool in case:
➢You want to change or replace accessories.
➢You want to clean, repair or maintain the tool.
➢The tool is not going to use for some times.
3. Check compressed air hose before use. If it is damaged, broken, torn, or deformed, the hose is not to be connected to the tool.
4. Always check the pneumatic couplings before using the tool. If they show signs of damage, fracture, cracking or excessive corrosion,
the respective tool or the air hose is not to be used.
5. Use only qualified adapters and connectors, In case of wear they are to be replaced immediately.
6. Only use air pipes that are fit for the use at maximum pressure.
Maintenance instruction:
1. Dry the filter (fig1) and the air inlet of the tool.
2. Lubricate the quick connect coupling to prevent blocking.
3. Air tool require lubrication throughout the life of the tool. The air motor and bearing uses compressed air to start the tool. The moisture in
compressed air will rust the air motor; you must lubricate the motor daily.
4. Avoid storing the tool in a location subject to high humidity. If the tool is left as it is used, the residual moisture inside the tool can cause
rust.
5. Before storage, lubricate tool and run it for a few seconds.
6. Regular inspection of spindles, threads, and clamping devices in respect of wear and tolerances for location of abrasive products.
7. If the tool is too seriously damage to be used anymore, recycle raw material instead of disposing as waste. The machine, accessories
and packaging should be sorted for environmental-friendly recycling. Check with your local authority or retailer for recycling advice.
SCALER-I-201304A