Advertisement
2.
INTRODUCTION
Lightweight, balanced aluminium body with double bearing counter balance assembly and spindle lock device for easy pad removal.
Housing fitted with composite cap and internal baffle for quiet operation. Equipped with airflow control valve. Supplied with Ø150mm
self-adhesive backing pad.
3.
SPECIFICATION
i
Pad Size ø: ................................................................ 150mm
Orbital Size ø: ............................................................. 4.2mm
Thread Size: ..........................................................5/16" UNF
Free Speed: ........................................................... 10000rpm
Operating Pressure: ...................................................... 90psi
Air Consumption: .......................................................... 4cfm
Air Inlet:.....................................................................1/4"BSP
Noise Power: ............................................................ 96dB(A)
Noise Pressure: ........................................................ 85dB(A)
Measured Vibration Value (a): ................................ 41.77m/s²
Uncertainty Value (k): ............................................... 16.7m/s²
Weight: .......................................................................... 1.9kg
4. PREPARATION
4.1.
Air Supply
4.1.1.
Ensure the sander air valve (or throttle) is in the "off" position before connecting to the air supply.
4.1.2.
You will require an air pressure between 70-90psi, and an air flow according to the specification above.
WARNING! Ensure the air supply is clean and does not exceed 90psi while operating the sander.
‰
4.1.3.
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.
4.1.4.
Drain the air tank daily. Water in the air line will damage the sander and will invalidate your warranty.
4.1.5.
Clean air inlet filter weekly. Recommended hook-up procedure is shown in fig.2.
4.1.6.
Line pressure should be increased to compensate for unusually long air hoses (over 8 metres).
4.1.7.
The minimum hose diameter should be 1/4" I.D. and fittings must have the same inside dimensions.
4.1.8.
Keep hose away from heat, oil and sharp edges. Check hoses for wear, and make certain that all connections are secure.
4.2.
Couplings.
Vibration may cause failure if a quick change coupling is connected directly to the air sander. To overcome this, connect a leader hose to
the sander. A quick change coupling may then be used to connect the leader hose to the air line recoil hose. See fig.2 & fig.3.
fig.1
5. OPERATION
WARNING! Ensure that you read, understand and apply the safety instructions before use.
‰
5.1.
Assembly.
5.1.1.
Apply appropriate sanding disc to the backing pad. Use only pads with speed ratings equal to or higher than the speed rating of the
sander. DO NOT use cloth backed sanding pads.
5.1.2.
Connect air supply to sander and press the control valve lever and check that the sander is working correctly.
5.1.3.
The air flow may be regulated by turning the knurled throttle knob on the side of the handle.
5.2.
Operating.
The sander is designed to provide a "rotary" or "random orbit" action, see fig.3 for method. Always use sanding disc with grit appropriate
for the job. Work progressively from coarse grades to finer grades. DO NOT go from coarse to fine in one step as it may be difficult to
remove swirl marks left by the coarser grit. DO NOT apply excessive pressure, let the sander do the work for you. Start the sander and
bring the sanding disc to the the work surface evenly and slowly. Move the sander back and forth in overlapping areas. Remove the
sanding disc from the work surface before stopping the sander. Regularly check the sanding pad for wear, always change a cracked or
damaged pad.
DO NOT allow sander to run "idle" for an extended period of time as this will shorten bearing life.
8
© Jack Sealey Limited
fig.2
Original Language Version
SA77.V4
Issue 2 (H, 3, F) 10/05/18
Advertisement
