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4. PREPARATION
4.1.
AIR SUPPLY
WARNING! Ensure the air supply is clean and does not exceed 60psi while operating the tool.
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4.1.1.
Too high an air pressure and unclean air will shorten the product life due to excessive wear and may cause damage and/or
personal injury.
4.1.2.
Ensure that the tool air valve (or trigger) is in the "off" position before connecting to the air supply.
4.1.3.
Monitor the compressor daily to ensure that moisture is not present in the compressed air. Water in the air line will damage the tool.
4.1.4.
Line pressure should be increased to compensate for unusually long air hoses (over 8 metres).
4.1.5.
The minimum hose diameter should be ¼" internal diameter. Fittings must have compatible inside dimensions.
4.1.6.
Keep hoses away from heat, oil and sharp edges. Check hoses for wear and ensure that all connections are secure.
4.2.
COUPLINGS
4.2.1.
Vibration may cause failure if a quick change coupling is connected directly to the tool.
4.2.2.
To overcome this, connect a leader hose to the tool (Sealey ref: AH2R or AH2R/38).
4.2.3.
A quick change coupling may then be used to connect the leader hose to the air line recoil hose.
5. OPERATION
5.1.
Check that the outer sleeve of the ON/OFF valve is set in the "OFF" position.
5.2.
Connect the tool to an air supply. Pressure must be between 40-60 PSI.
5.3.
Switch the engraver on and check the pressure by testing on scrap material. The pressure should be adjusted to suit the material being
worked on. The life of the tool will be extended if the pressure is kept to the minimum required by each workpiece.
5.4.
For consistent performance, the engraving tip must have a sharp point.
6. MAINTENANCE
6.1.
Position clamp blocks on the body (recommended position shown in parts diagram) and clamp in a vice.
6.2.
Unscrew the nose (1) and withdraw the spring (2), stylus (3) and the distance tube (4).
6.3.
Unscrew the ON/OFF valve (14) and withdraw the air filter (8).
6.4.
Using a clean length of rod, push it very carefully through the air inlet to remove the cylinder and piston assembly (6).
6.5.
The tip of the stylus may be re-ground using a Green Silicone Carbide stone, grind to an angle of 60º.
6.6.
Clean components, replace parts as necessary, then re-assemble the engraver by reversing the process above.
WARNING! The nose (1) should be tightened to a torque of: 38lbf.in (4.3Nm).
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6.7.
LUBRICATION
6.7.1.
The air system does not have an oiler, lubricate the air tool daily with a few drops of Sealey air tool oil dripped into the air inlet.
6.8.
Clean the tool after use.
6.9.
Loss of power or erratic action may be due to the following:
- 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 the PREPARING FOR USE section.
- Grit, residual deposits (gum) in the tool may also reduce performance. Flush the tool out with gum solvent oil or an equal mixture of SAE
No: 10 oil and paraffin. Allow the tool and strainer to dry then lubricate before use.
6.10.
CLEAN AIR FILTER (Refer to Parts list)
6.10.1.
Remove nose (1) and internal components. Clean air filter in paraffin, allow to dry and reassemble.
6.10.2.
For a full service, contact your local Sealey service agent.
6.11.
When not in use, disconnect the tool from the air supply, clean the tool and store the tool in a safe, childproof, location.
WARNING! – Risk of Hand Arm Vibration Injury.
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This tool may cause Hand Arm Vibration Syndrome if its use is not managed adequately.
This tool is subject to the vibration testing section of the Machinery Directive 2006/42/EC.
This tool is to be operated in accordance with these instructions.
Measured vibration emission value (a): 3.89 m/s²
Uncertainty value (k): 0.88 m/s²
Please note that the application of the tool to a sole specialist task may produce a different average vibration emission. We recommend
that a specific evaluation of the vibration emission is conducted prior to commencing with a specialist task.
A health and safety assessment by the user (or employer) will need to be carried out to determine the suitable duration of use for each
tool.
NB: Stated Vibration Emission values are type-test values and are intended to be typical.
Whilst in use, the actual value will vary considerably from and depend on many factors.
Such factors include; the operator, the task and the inserted tool or consumable.
NB: ensure that the length of leader hoses is sufficient to allow unrestricted use, as this also helps to reduce vibration.
The state of maintenance of the tool itself is also an important factor, a poorly maintained tool will also increase the risk of Hand Arm
Vibration Syndrome.
Health surveillance.
We recommend a programme of health surveillance to detect early symptoms of vibration injury so that management procedures can be
modified accordingly.
Personal protective equipment.
We are not aware of any personal protective equipment (PPE) that provides protection against vibration injury that may result from the
uncontrolled use of this tool. We recommend a sufficient supply of clothing (including gloves) to enable the operator to remain warm and
dry and maintain good blood circulation in fingers etc. Please note that the most effective protection is prevention, please refer to the
Correct Use and Maintenance section in these instructions. Guidance relating to the management of hand arm vibration can be found on
the HSC website:
www.hse.gov.uk - Hand-Arm Vibration at Work.
© Jack Sealey Limited
Original Language Version
SA96 Issue:3 (H,F) 26/07/21
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