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5.3.1.
Your compressor is fitted with a push/pull type of ON/OFF switch. To turn the
compressor 'ON' pull the switch knob upwards. To turn the compressor 'OFF'
push the knob downwards. (See fig.3.1)
5.3.2.
Check that the ON/OFF switch is in the "OFF" position, the regulator tap
(fig.3.2) is closed (Zero '0' bar), and air tap (fig.3.4) is OFF.
5.3.3.
Plug mains lead into mains supply and start the compressor by pulling the switch
knob upwards.
5.3.4.
When starting the compressor for the first time, leave it running for several
minutes with the air tap (fig.3.4) open to ensure good distribution of the
lubricating oil. Turn the compressor off and close the air tap. Restart the
compressor and leave it running with air tap (fig.3.4) closed and regulator
(fig.3.2) set to maximum pressure. Make sure that pressure in the tank rises
and that the compressor stops automatically when the max. pressure value
allowed - written on the specification plate and shown on the gauge (fig.3.6) -
is achieved. The compressor will now operate automatically. The pressure
switch (fig.3.8) stops the motor when the maximum tank pressure is reached
and restarts 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 (See fig.3.1) downwards.
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 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 (fig.3.2). Turn the knob clockwise to increase pressure and clockwise to
reduce it. The knob can be locked at any required setting by tightening the locking ring (fig.3.3) up against the underside of the knob. 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.3.6) indicates the pressure inside the main tank. The smaller gauge (fig.3.5) indicates the pressure supplied to
the air equipment. Should the pressure in the main tank exceed the pre-set switch (fig.3.8) maximum, the safety valve (fig.3.7) will
activate.
wARninG! for this reason DO nOt tamper with, or adjust, the switch or safety valve.
‰
5.3.7.
The compressor is fitted with a reset trip, located in the connection box on top of the motor (see fig.A.Z) The reset button is on the side
of the box (fig.7). Should the trip activate, leave for 1 minute before pressing the button to reset. For possible causes of trip activation and
remedies see section 7 Troubleshooting.
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 electricity 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 bolts/nuts are tight, particularly those retaining the crank case and
cylinder head.
6.2.
OPERATIONS TO BE CARRIED OUT AFTER THE FIRST 50 WORkING
HOURS:
b) Replace the lubricating oil - see para 6.5.
6.3.
OPERATIONS TO BE CARRIED OUT DAILY:
a) drain condensation by opening the valve located under the tank (fig.5). Place a
container under the valve and slowly open the valve by turning anti-clockwise.
6.4.
OPERATIONS TO BE CARRIED OUT EVERY 100 HOURS (or more frequently, if the
compressor operates in a very dusty atmosphere)
a) Check oil level and, if necessary, top up.
b) Remove the filter elements (See fig.4) and clean with compressed air. (Wear eye
protection). DO nOt operate the compressor without the filters as foreign bodies or dust
could seriously damage the pump.
c) Check for oil leaks
6.5.
OPERATIONS TO BE CARRIED OUT EVERY 200 HOURS:
a) Replace the lubricating oil. For oil specifications see 6.7.
Remove the oil filler/breather plug (see fig.2.B) then unscrew oil sight glass (see fig.2.C)
and drain the oil into a container.
drain when the compressor is hot so that oil drains rapidly and completely. Incline compressor to ensure complete drainage.
Replace oil sight glass and refill through the oil filler/breather aperture. DO nOt overfill. Replace filler/breather plug.
b) Check the automatic cut-out at max. pressure and the automatic cut-in at 2 bar below.
wARninG! Never mix different oils and DO NOT use non-detergent/low quality oils as the compressor may be damaged.
‰
wARninG! Dispose of waste oil only in accordance with local authority requirements.
‰
© Jack Sealey limited
Original Language Version
fig.4
SAC5030VE.V2 Issue 5 (HF) 25/05/18
fig.3
fig.5
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