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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.5.2). Turn the knob clockwise to increase pressure and counter-clockwise
to reduce it. The knob can be locked at any required setting by tightening the locking ring (fig.5.5) 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 gauge (fig.5.4) indicates the pressure inside the main tank. The gauge (fig.5.3) indicates the pressure supplied to the air
equipment. Should the pressure in the main tank exceed the pre-set switch (fig.5.1) maximum, the safety valve (fig.5.6) will activate.
WARNiNG! For this reason dO NOT tamper with, or adjust, the switch or safety valve.
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5.3.7.
The compressor is fitted with a reset trip, located in the connection box on top of the motor. The reset button is on the side of the box (fig.2).
Should the trip activate, leave for 1 minute before pressing the button to reset. For possible causes of trip activation and remedies see
section 6 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
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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 5.5.
6.3.
oPeRATIonS To Be CARRIed oUT dAIlY:
a) drain condensation by opening the valve located under the tank (fig.6). Place a container under the valve and slowly open the valve
by turning counterclockwise.
fig.6
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.7) 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 5.7.
Remove the oil filler plug (see fig.4.B) then unscrew oil drain plug (see fig.4) 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 drain plug and refill through the oil filler aperture. dO NOT overfill. Replace oil filler plug.
b) Check the automatic cut-out at max. pressure and the automatic cut-in at 2bar below.
WARNiNG! Never mix different oils and dO NOT use non-detergent/low quality oils as the compressor may be damaged.
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WARNiNG! dispose of waste oil only in accordance with local authority requirements.
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6.6.
oPeRATIonS To Be CARRIed oUT eVeRY 500 HoURS:
a) Replace air filter. (See fig.7)
b) Check all tube fittings and electrical connections.
6.7.
Recommended oil for compressors, suitable for room temperatures ranging from +5°C to +25°C.
SeAleY CPo or equivalent SAe 40 compressor oil. Room temperature below +5°C: SAe 20 compressor oil.
iMPORTANT WARNiNG - Air contaminants taken into the compressor will affect optimum performance. Example: Body filler dust or
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paint overspray will clog the pump intake filter and may cause internal damage to pump/motor components. Please note that any parts
damaged by any type of contamination will not be covered by warranty.
6.8.
Inspection of pressure tank both inside and out.
Under the PReSSURe SYSTemS SAFeTY RegUlATIonS 2000 it is the responsibility of the owner of the compressor to initiate a
system of inspection that both defines the frequency of the inspection and appoints a person who has specific responsibility for carrying
out the inspection.
fig.7
© Jack Sealey limited
drain valve on underside of
receiver.
ensure shut on start up
(4.3) and drain daily (5.3.)
Original Language Version
SAC3153B/SAC3203B
Issue 3 (4, 6) 27/09/18
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