5. operAtioN
importANt:
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 and so it is important that, before choosing equipment,
you study the ‘Free Air delivery’ figures shown in the Specification Chart.
WArNiNG! eNsUre thAt YoU hAve reAd, UNderstood ANd Applied sectioN 1 sAFetY iNstrUctioNs.
5.1.
make sure that the main switch (fig.5.1) is ‘oFF’ (down).
5.2.
Check the oil level by looking through the sight glass (fig.3).
5.3.
ensure that the tank drain valve is closed (fig.1).
5.4.
Connect the air tool required to the compressor via an air line connected to the air outlet.
5.5.
Plug the mains plug into the mains supply and start the compressor by pulling up the main switch (fig.5.1).
5.6.
Allow the pressure in the tank to rise to the maximum at which point
the compressor will automatically cut out. Tank pressure is shown on
the larger gauge (fig.5.6).
5.7.
Begin to gradually open the regulator by turning the knob clockwise
(fig.5.2) until small gauge registers the required operating pressure
specified for the tool to be used. Always
adjust up
to the required
pressure rather than down from a higher pressure. The required
setting, once achieved, can be locked by screwing the locking ring (fig.5.3)
up tight underneath the adjusting knob.
5.8.
You can now begin to use the tool. The compressor will operate
automatically cutting in and out as required to restore the air pressure in
the tank. The pressure switch (fig.5.8) 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.
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 appliance.
b
) The main gauge (fig.5.6) indicates the pressure inside the main tank,
Not
the pressure supplied to the air equipment, which is shown on the
smaller gauge (fig.5.5). Should the pressure in the main tank exceed
pre-set switch (fig.5.8) maximum, the safety valve (fig.5.7) will activate.
WArNiNG! For this reason do Not tamper with, or adjust, the
switch or the safety valve.
When the compressor is not being used
set the regulated pressure to zero so as to avoid damaging the pressure regulator.
5.9.
To stop the compressor press down the main switch (fig.5.1). When the compressor stops there will be a whistling sound as compressed
air is vented from the compressor head.
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.
5.10.
When you have finished using the compressor unplug the unit from the mains power supply.
5.11.
Set the outlet pressure on the regulator to zero.
5.12.
Remove the air line and air tool.
5.13.
The tank must now be drained. This will release the air left in the tank and drain away condensation that may have formed within the tank.
Choose a suitable location for this operation and/or make provision to collect the condensation.
Wear ear and eye protection
. open
the tank drain valve (fig.1) slowly, allowing air and moisture to bleed from the tank. After bleeding, close the drain valve to prevent debris
building up in the valve.
WArNiNG! Water that is allowed to remain in the tank during storage will corrode and weaken the air tank, which could cause
the tank to rupture. to avoid serious injury, drain the tank on a daily basis.
5.14.
sAFetY FeAtUres
thermAl cUt oUt
If the unit overheats the thermal cut out will operate and shut the unit down. Allow the unit to cool down then press
the reset button, located just inside the pump cover (fig.7).
6. mAiNteNANce
WArNiNG!
Before performing any maintenance operation, switch the compressor off, disconnect from electricity supply and release all
air from the tank. In order to keep the compressor in good working condition, periodical maintenance is essential.
6.1.
After the first 50 working hours replace the lubricating oil - see para 6.4.
6.2.
operAtioNs to Be cArried oUt dAilY:
a)
drain condensation, place a container under the valve and open the valve by turning anti-clockwise (fig.1). Retighten the valve.
b)
Check that all nuts and bolts are tight, particularly those retaining the crankcase and cylinder head.
6.3.
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 it up.
b)
Remove the air filter element by unscrewing the filter holder (fig.4) and prising open the holder. Clean it by blowing through with an
air line at low pressure, from the clean side. Alternatively, wash it in soapy water, rinse and dry.
do Not
operate the compressor without
the filter as foreign bodies or dust could seriously damage the pump.
c)
Check for oil leaks.
6.4.
operAtioNs to Be cArried oUt everY 200 hoUrs:
a)
Replace the lubricating oil. Remove the oil filler/breather and unscrew the drain bolt (fig.3), drain the oil into a suitable container.
drain when the compressor is hot so that the oil drains rapidly and completely. Incline the compressor to ensure complete drainage.
Replace the drain bolt and refill with fresh oil through the filler aperture.
do Not
overfill. Replace oil filler/breather (fig.3).
Original Language Version
© Jack Sealey limited
fig.5
SAC2420e110V.V3 Issue 1 24/05/19
