Operation; Maintenance - Sealey SAC2103B.V2 Instructions Manual

3.6. To ensure good ventilation and efficient cooling, the compressor's
belt guard must be at least 100cm from any wall (fig.3).
Compressors fitted on the tank, with fixed feet, should not be
rigidly secured to the ground. In this case, we advise you to fit 4
anti-vibration supports. (Optional extra).
3.7. Take care to transport the compressor correctly, do not overturn
it or lift it with hooks or ropes.
3.8. Remove the plastic transit plug from the oil filler hole (fig.4A) and
replace it with the filler/breather plug as shown in fig.4B. It is a
push fit, ensure that it is pushed fully home.
3.9. Before using the compressor, check the oil level by observing the
sight glass as shown in fig.5. If the oil is not up to the max mark
it should be topped up with synthetic oil suitable for temperatures
ranging from -5°C to 45°C (viscosity 5W50). We do not
recommend using mineral oil in these compressors. Do not
overfill.
fig.4

4. OPERATION

WARNING! Ensure that you have read, understood and

apply Section 1 safety instructions.
IMPORTANT! The use of extension leads to connect these

compressors to the mains is not recommended as the resulting
voltage drop reduces motor, and therefore pump performance
and could cause damage to your compressor.
NOTE: Take care when selecting tools for use with the
compressor. Air tool manufacturers normally express the
volume of air required to operate a tool in cubic feet per minute
(cfm). This refers to free air delivered by the compressor ('air
out') which varies according to the pressure setting. Do not
confuse this with the compressor displacement which is the air
taken in by the compressor ('air in'). 'Air out' is always less than
'air in' due to losses within the compressor.
4.1. STARTING THE COMPRESSOR
To turn the compressor on, use the rotary switch on the top of
the pressure switch housing. See figs.6.1 and 7.1. Turn the
switch clockwise to position "I" to start the compressor and
anti-clockwise to position "O" to stop it.
4.2. Check that the ON/OFF switch is in the "O" position.
On Model SAC2103B.V2 the regulator tap (fig.6.2) should be
closed and the output gauge (fig.6.4) must read Zero '0' bar.
4.3. Plug mains lead into mains supply and start the compressor by
turning the main switch to the "O" position.
4.4. When starting the compressor for the first time, leave it running
with no air tools connected to the air outlet. Make sure that
pressure in the tank rises and that the compressor stops
automatically when the maximum pressure value allowed -
written on the plate and shown on the gauge (figs.6.5 & 7.5) -
is achieved. The compressor will now operate automatically.
The pressure switch stops the motor when the maximum tank
pressure is reached and restarts it when the pressure falls
below the minimum threshold - approx. 2 bar (29psi) less than
the maximum pressure.
© Jack Sealey Limited
4.5. Stop the compressor by turning the main switch to the "O"
position. The compressed air inside the compressor head will
flow out, making the restart easier and preventing the motor from
being damaged. DO NOT, other than in an emergency, stop the
compressor by switching off the mains power, or by pulling the
plug out, as the pressure relief will not then operate and motor
damage may result upon restart.
4.6. The motor of the compressor is fitted with a thermal breaker
located in the housing on top of the motor. The manual resetting
button is located in the end of the housing as shown in fig.10A.
When the breaker is tripped, wait for a few minutes and then
press the reset button.
4.7. On Models SAC2103B.V2, the output pressure is regulated by
the pressure regulator (fig.6.2). Turn the knob clockwise to
increase pressure and anti-clockwise to reduce it. Lock knob in
position at required pressure with locking ring. To determine the
correct working pressure for any piece of equipment check the
corresponding manual. When the compressor is not being used,
set the regulated pressure to zero so as to avoid damaging the
pressure regulator.
NOTE: a) If the motor does not cut in and out, but runs
continuously when using an air appliance, the capacity of the
compressor may be too small for the equipment or tool.
b) The gauge (figs.6.5 and 7.5) indicates the pressure inside the
main tank, NOT the pressure supplied to the air equipment.
Should the pressure in the main tank exceed the pre-set switch
maximum, the safety valve will activate.
WARNING! For this reason DO NOT tamper with, or adjust,
the switch or safety valve.
fig.6
fig.5

5. MAINTENANCE

In order to keep the compressor in good working condition,
periodic maintenance is essential.
IMPORTANT! Failure to carry out maintenance tasks may
invalidate the warranty on your compressor.
Original Language Version
SAC2103B.V2, SAC2153B.V2, SAC2203B.V2 Issue: 1 - 30/10/13
fig.7