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3. SPECIFICATION
MODEL NO: ............................................................... SA674
Air Consumption: ........................................................... 4cfm
Air Inlet Size: .............................................................1/4"BSP
Collet Diameter: .......................................................... Ø6mm
Configuration:..........................................................90° - Midi
Free Speed: ........................................................... 20000rpm
Length: ....................................................................... 160mm
Noise Power/Pressure: ...................................... 102/91dB(A)
Operating Pressure: ...................................................... 90psi
Vibration/Uncertainty: ........................................... 1.4/0.7m/s²
4. AIR SUPPLY
4.1.
RECOMMENDED HOOK-UP PROCEDURE IS SHOWN IN FIG.1.
WARNING! Ensure the air supply is clean and does not exceed 90 psi 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.
4.1.1.
Recommended hook-up procedure is shown in fig.1. Ensure die grinder air valve (or trigger) is in "off" position before connecting to
the air supply.
4.1.2.
You will require an air pressure of 90psi, and an air flow according to specification.
4.1.3.
Drain the air tank daily. Water in the air line will damage the die grinder.
4.1.4.
Clean air inlet filter weekly.
4.1.5.
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.
4.1.6.
Keep hose away from heat, oil and sharp edges. Check hose for wear, and make certain 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 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. figs.1 & 2.
fig.1
5. OPERATION
WARNING! Ensure you read, understand and apply safety instructions.
‰
5.2.1.
Connect the die grinder to the air supply.
5.2.2.
To start, hold firmly and push the trigger locking lever forward whilst depressing trigger.
5.2.3.
The bit must be running at its maximum speed before attempting to grind the work piece.
5.2.4.
Slowly and smoothly bring the grinding stone toward the work piece (avoid jerky movements).
Avoid subjecting stone to excessive strain or harsh impacts.
9
Always hold die grinder firmly and ease grinding stone against work piece. Maintain a controlled progression.
9
5.1.
CHANGING GRINDING STONES
WARNING! Disconnect from the air supply before changing grinding stone.
‰
5.1.1.
Check that grinding stones are not damaged in any way such as cracks, deformations or splinters etc. Damaged stones must not
be used.
5.1.2.
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 bearing life.
8
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 air supply does not have an oiler, lubricate the air tool daily with a few drops of Sealey air tool 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 section 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 SAE No 10 oil and
paraffin. Allow to dry before use.
6.4.
For a full service contact your local Sealey service agent.
6.5.
When not in use, disconnect from air supply, clean die grinder and store in a safe, dry, childproof location.
© Jack Sealey Limited
Original Language Version
fig.2
SA674 Issue 1 14/07/2020
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