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B: The direct pressure gauge (fig 5) indicates the pressure inside the main tank. The regulated pressure gauge (fig 5) indicates the
pressure supplied to the air equipment.
Should the pressure in the main tank exceed the pre-set maximum, the safety valve (fig 3) will activate.
WARNING! For this reason DO NOT tamper with, or adjust, the pressure switch (fig 6) or safety valve (fig 3).
‰
5.7.7.
The compressor is fitted with a trip reset button, located on the side of the connection box on top of the motor (fig 3). Should the trip
activate, leave for 1 minute before pressing the button to reset.
For possible causes of trip activation 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 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.
6.3.
OPERATIONS TO BE CARRIED OUT DAILY:
A: Drain condensation by opening the valve located under the tank (fig 7). Place a container under the valve and slowly open the
valve by turning counter clockwise.
6.4.
OPERATIONS TO BE CARRIED OUT EVERY 100 HOURS
NOTE: 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 (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 filler cap (fig 3) then unscrew the drain plug (fig 3) and drain the oil into a suitable waste oil container.
Drain when the compressor is hot so that oil drains rapidly and completely. Incline compressor to ensure complete drainage.
Replace drain plug and refill through the oil filler aperture. DO NOT overfill. Replace filler cap.
B: Check the automatic cut-out at maximum 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.
‰
WARNING! Dispose of waste oil only in accordance with local authority requirements.
‰
6.6.
OPERATIONS TO BE CARRIED OUT EVERY 500 HOURS:
A: Replace air filter (figs 1 & 4).
B: Check all tube fittings and electrical connections.
6.7.
OIL
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 paint overspray will clog the pump intake filter and may cause internal damage to pump/motor components.
WARNING! 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.
7. TROUBLESHOOTING
FAULT
1A) Pressure drop in the tank
1B) Pressure drop in the tank
1C) Pressure drop in the tank
2) Pressure switch valve leaks when
compressor is idle
3) Air leaks from tank body or tank welds
4A) Motor stops and will not restart
© Jack Sealey Limited
POSSIBLE CAUSE
Air leaks at connections
Air leaks from safety valve
Air leaks from cylinder head gasket
Non-return valve seal defective
Internal corrosion caused by infrequent tank
draining or non permitted modifications to tank
Thermal cut out has operated
Original Language Version
fig.8
fig.7
REMEDY
Run compressor to maximum pressure, switch off.
Brush soap solution over connections and look for
bubbles. Tighten connections showing leaks.
If problem persists contact Authorised Service Agent
It should be replaced, unless leaking at a joint
which can be sealed.
Check tightness of head bolts. If leak continues
contact authorised Service Agent
Empty the air tank. Remove the check valve cap,
spring and seal. Clean the seal and its seat, or if
necessary replace the seal (fig 8)
Tank could rupture or explode. Cannot be repaired
DISCONTINUE USE IMMEDIATELY
Allow unit to cool for 30 minutes before restarting
SAC3103B Issue 4 (3,4,5) 01/04/22
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