Sealey SAC0610E - Manual (Page 3)

4. TOOL SELECTION
 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.
5. OPERATION
6. MAINTENANCE
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 (See 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 after each use or daily.
5.15 SAFETY FEATURES
Thermal cut out: If the unit overheats the thermal cut out
will operate and shut the unit down. The thermal cut out will
automatically reset when the unit has cooled down which
may take up to 30 minutes.
fig.5
 WARNING! ENSURE THAT YOU HAVE READ,
UNDERSTOOD AND APPLIED SECTION 1 SAFETY
INSTRUCTIONS.
5.0. DUTY CYCLE: This is a 50% duty cycle air compressor. Do
not run the air compressor for more than 30 minutes in any
one hour. Doing so could damage the air compressor.
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 (See
fig.2B).
5.3. Ensure that the tank drain valve is closed. (See fig.1)
5.4. Close the outlet pressure regulator by turning the knob
clockwise. (See fig.5.2).
5.5. Connect the air tool required to the compressor via an air line
connected to the air outlet (See fig.5.4).
5.6. Plug the mains cable into the mains supply and start the
compressor by pulling up the main switch.
5.7. 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).
5.8. Begin to gradually open the regulator by turning the knob
anticlockwise until the 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 (See fig.5.3) up tight
underneath the adjusting knob.
5.9. 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 the 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.
5.10. 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.
5.11. When you have finished using the compressor unplug the
unit from the mains power supply.
5.12. Set the outlet pressure on the regulator to zero.
5.13. Remove the air line and air tool.
5.14. The tank must now be drained. This will release the air left in
 WARNING! Before performing any maintenance operation,
switch off the compressor, 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 10 working hours replace the lubricating
oil - see para 6.3.
6.2. OPERATIONS TO BE CARRIED OUT DAILY:
a) Drain condensation by opening the valve located under
the tank. Place a container under the valve and open the
valve by turning anti-clockwise. See fig.1.
b) Check for oil leaks
c) Check oil level and, if necessary, top up.
6.3. OPERATIONS TO BE CARRIED OUT EVERY 100 HOURS
(or more frequently, if the compressor operates in a very dusty
atmosphere):
a) Check the automatic cut-out at max. pressure and the
automatic cut-in at 2 bar below.
b) Check the condition of the air filter. If necessary remove
the filter element (fig.3C) and clean by blowing through, with
an air line at low pressure from the clean side or wash 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) Replace the lubricating oil. For oil specifications see
below. Remove the oil filler plug (fig.2A) and unscrew sight
glass (fig.2B), draining the oil into a container. Drain when the
compressor is hot so that oil drains rapidly and completely.
Incline compressor to ensure complete drainage.
Original Language Version SAC0610E.V2 Issue No:2(I)- 08/04/14 © Jack Sealey Limited