We recommend a full change of oil in the
pumping element within the first 100 hours of
duty.
The soundproofing cabinet is to be taken off
first in the Silent model (fig.29A). Unscrew the
oil drain plug on the housing cover, allow all the
oil to flow out, and re-screw the plug (fig.27-28).
Pour oil into the upper hole of the housing cover
(fig.29-30) until it reaches the level indicated on
the stick (fig. 9) or indicator (fig. 11). Pour oil
into the upper hole of the head (fig. 30) in belt
assisted units designed for topping up in that
area.
Once a week: check oil level of the pumping
element (fig. 11) and see if it needs topping up.
For operation at ambient temperature in the
range – 5 C to – 35 C, use "SAE 5W50"
synthetic oil. The advantage of this oil is that is
does not lose its characteristics either in winter
or summer. Do not drain used oil into the sewer
or dispose of in the environment.
OBSERVE THIS TABLE FOR OIL CHANGES
TYPE OF OIL HOURS OF DUTY
SYNTHESIS -------------------------- 500
Synthetic oil (MOBIL, SHELL, ESSO, BP or
OTHERS) -------------- 300
Other types of oil mineral multi grade SAE 15
W40 ------------------------ 100
WHAT TO DO IF SMALL MALFUNCTIONS
OCCUR
Loss of air in valve under pressure switch
This trouble depends on poor tightness of the
check valve – take the following action (fig. 31):
- Discharge all pressure from the tank.
- Unscrew the hexagon-head on the valve (A)
- Carefully clean both the rubber disk (B) ant its
seat.
- Refit all parts accurately.
Air losses
These can be caused by poor tightness of a
union – check all unions, wetting them with
soapy water.
Compressor turns but does not load
Coaxial compressors: (fig. 32)
- this may be due to failure of the valves (C1-
C2) or of a seal (B1-B2): replace the damaged
part. Pulley drive compressors: (fig. 33)
- this may be due to failure of the valves
F1 and F2 or of
D2): replace the damaged part.
- Check if there is too much condensate water
inside the tank.
Compressor no starting
If the compressor has trouble starting, check
the following:
- Does mains power match that of the data-
plate? (fig. 14)
- Are power cable extensions of adequate
diameter or length?
- Is the work environment too cold? (under 0
C)
- Is the thermal-breaker tripped? (fig. 20); in the
silent series (fig. 21)
- Is there oil in the housing to ensure
lubrication? (fig. 11)
- Is power suppled to the electrical line?
(Sockets well connected, thermal-breaker,
fuses in good condition).
Compressor not stopping
- If the compressor does not stop when
maximum pressure is reached, the tank safety
valve comes into operation. To repair the valve,
contact your nearest service center.
IMPORTANT
- Do not on any account unscrew any
connection while the tank is pressurized –
always check if the tank is pressure free.
- Do not drill holes, weld or purposely deform
the compressed air tank.
- Do not do any jobs on the compressor unless
you have disconnected the power plug.
- Temperature in operating ambient: 0ºC
+35ºC.