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4. PREPARATION
4.1.
Remove compressor from packaging and inspect for any shortages or damage. If anything is found to be missing or damaged contact
your supplier.
4.2.
Save the packing material for future transportation of the compressor. We recommend that the packing is stored in a safe location, at
least for the period of the guarantee. Then, if necessary, it will be easier to send the compressor to the service centre.
4.3.
Confirm that the mains voltage corresponds with the voltage shown on the compressor data plate.
4.4.
SAC05030.V2- Fit the main wheels (fig.1.A) and two rubber feet (fig.1.B) to the main frame using the nuts, bolts and washers supplied.
SAC10030.V2- Fit the main wheels (fig.1.D) and small wheel (fig.1.E) to the main frame using the nuts, bolts and washers supplied.
4.5.
The compressor should be installed on a flat, firm surface, or one that does not exceed 15
should be in a position that allows good air circulation around the unit.
4.6.
The compressor is shipped with oil in the pump, but the level needs checking before starting the unit for the first time. Check the oil level by
referring to the oil sight glass (fig.2.B). If the oil level is not up to the red centre mark, it should be topped up. Remove the plastic
transit plug from the oil filler hole and if required, pour in the recommended oil. (See section 5.6). Screw the filler/breather cap
supplied into the aperture as shown (fig.2.A).
5. OPERATION
WARNING! Ensure that you have read, understood and apply Section 1 safety instructions.
5.1.
IMPORTANT. The use of extension leads to connect this compressor to the mains is not recommended as the resulting voltage drop
reduces motor, and therefore pump, performance.
5.2.
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.
5.3.
STARTING THE COMPRESSOR.
5.3.1. The compressor is fitted with a push/pull type of ON/OFF switch (fig.3.A).
To turn the compressor 'ON' pull the switch knob upwards. To turn the
compressor 'OFF' push the switch knob downwards.
5.3.2. Check that the ON/OFF switch is in the "OFF" position and the regulator tap
(fig.3.C) is closed (Zero '0' bar, Anti-clockwise).
5.3.3. Plug mains lead into mains supply and start the compressor by pulling the
ON/OFF switch knob upwards.
5.3.4. Leave the compressor running with the regulator tap (fig.3.C) set to maximum
pressure. Make sure that the pressure in the tank rises and that the compressor
stops automatically when the maximum pressure value allowed - written on the
specification plate and shown on the gauge (fig.3.G) - is achieved.
The compressor will now operate automatically. The pressure switch (fig.3.B) stops
the motor when the maximum tank pressure is reached, and will restart it when
pressure falls below the minimum threshold - approx. 2 bar (29psi) less than the
maximum pressure.
5.3.5. Stop the compressor by pushing the switch knob downwards (fig.3.A). The
compressed air inside the compressor head will exhaust, 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 socket, or by pulling the plug out of the socket,
as the pressure relief will not then occur and motor damage may result upon restart.
When the compressor runs correctly and is stopped correctly there will be:
(a) a whistle of compressed air when the motor stops,
(b) a protracted whistle (about 20-25 seconds) when the compressor starts with no pressure in the tank.
5.3.6. The output pressure is regulated by the pressure regulator tap (fig.3.C). Turn the tap clockwise to increase pressure and anti-clockwise to
reduce it. The tap can be locked at any required setting by tightening the locking ring (fig.3.D) up against the underside of the tap.
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 reducer.
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 larger gauge (fig.3.G) indicates the pressure inside the main tank. The smaller gauge (fig.3.F) indicates the pressure supplied to
the air equipment. Should the pressure in the main tank exceed the pre-set switch (fig.3.B) maximum, the safety valve (fig.3.H) will
activate.
WARNING! For this reason DO NOT tamper with, or adjust, the pre-set switch or safety valve (fig.3.B&H).
5.3.7. The compressor is fitted with an overload switch, and a reset trip button located in the connection box on top of the motor
(see fig.1.C & fig.6). Should the overload switch activate, switch the compressor off and leave for a few minutes before pressing the
trip reset button to reset, and then re-start the compressor. For possible causes of overload switch activation and remedies, see
Section 6.
6. MAINTENANCE
In order to keep the compressor in good working condition, periodic maintenance is essential.
WARNING! Before performing any maintenance operation, switch off the compressor, disconnect from electrical supply and
release all air from the tank.
IMPORTANT! Failure to carry out maintenance tasks may invalidate the warranty on your compressor.
6.1.
Operations to be carried out after the first 5 working hours:
a) Check that all nuts/bolts are tight, particularly those retaining the crankcase and cylinder heads.
6.2.
Operations to be carried out after the first 100 working hours:
a) Replace the lubricating oil (see 6.6. below).
6.3.
Operations to be carried out daily:
a) Drain condensation by opening the valve located under the tank (fig.4). Place a container under the valve to collect any
condensation, as it may contain residual oil. Close valve after draining condensation and dispose of it safely.
b) Regularly clean dirt and dust away from the safety devices with a clean cloth or by blowing with low pressure compressed air.
Generally keep the compressor clean.
© Jack Sealey Limited
Original Language Version
either transversely or longitudinally, and
°
SAC05030.V2, SAC10030.V2 Issue: 2 (L) -15/08/18
fig.3
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