Recommended Maintenance; Lubricating The Bearings; Cleaning The Filter - Makita AC640 Use And Maintenance Handbook

WARNING
The electric compressors must be connected to a power socket
that is safeguarded by a suitable differential switch (magneto
thermal switch).
ADJUSTING THE WORKING PRESSURE (fi g. 11) It is not
always necessary to use the maximum working pressure, on the
contrary the pneumatic tool usually requires less pressure. Adjust
the working pressure accurately in compressors provided with
pressure regulators. Release the knob of the pressure regulator by
pulling it outwards, adjust the pressure to the desired value by
turning the knob clockwise to increase it and anti-clockwise to
decrease it. Once the ideal pressure has been reached, block the
knob by pushing it downwards (fig. 11). In the case of pressure
regulators supplied without a gauge, the calibration pressure may
be seen on the graduated scale situated on the casing of the actual
regulator. In the case of pressure regulators supplied with a gauge,
the calibration pressure may be seen on the actual gauge.
WARNING: Some pressure regulators do not have "push to lock",
therefore simply turn the knob to adjust the pressure.
MAINTENANCE
Before servicing the compressor make sure that:
- the main line ON/OFF switch is on «0».
- the pressure switch or the line switch is on «0».
- there is no pressure in the air tank (only for model with tank).
The compressor generates condensate that accumulates in the
tank. The condensate must be drained from the tank at least once
a week by opening the discharge tap (fig. 12) underneath the tank
(only for model with tank). Be careful if there is any compressed
air within the cylinder as the water could burst out with some force.
Recommended pressure 1 ÷ 2 bar max.

RECOMMENDED MAINTENANCE

In units F with 2 poles, replace the whole connecting rod unit every
700 hours of operation.
In units F and FB with 4 poles, replace the whole connecting rod
unit every 1500 hours of operation. In units GMS and VS, replace
the sliding blocks and the compression ring every 1500 hours of
operation.

LUBRICATING THE BEARINGS

All the bearings are lubricated with grease for life with the
exception of the roller casing fitted on the connecting rod side of
the GMS and VS units which is to be washed with solvent and re-
lubricated with "Kluber Barrierta L 55/2" grease every 1500 hours
of operation (white grease). The grease must completely fill the
spaces between the rollers; excess lubricant will be expelled during
the initial hours of operation.
CLEANING THE FILTER (F-FB-ECU-GMS-VS Series-AIRCLIK-F
1)
It is advisable to dismantle the suction filter every 50 hours of use
and to clean the fi ltering element by blowing it with compressed
air, or replace it if the element pointed out by the arrow is clogged.
HOW TO PROCEED WHEN TRIVIAL ANOMALIES
ARE ENCOUNTERED Loss of air from the valve underneath
the pressure switch (only model with tank)
This inconvenience is due to the imperfect seal of the non-return
valve; proceed as follows: (fig. 13). Release all the pressure from
the tank. Remove the panelling by unscrewing the four securing
screws and lift it. (fig. 13-14) (F 1 and AIRCLIK) . Unscrew the
hexagonal head of the valve (A)(fig.15). Carefully clean the small
rubber disk (B) and also its seat (fig.15). Re-fi t everything
accurately.
Loss of air (F-GMS-VS Series)
This may be due to the poor seal of one of the fittings. Check all
the fittings by wetting them with soapy water.
The compressor runs but fails to load
F-GMS-VS series compressors: (fig.16)
- This may be due to a breakage of the valve, or a gasket (B1-
B2). Replace the damaged component.
- This may be due to a breakage of the valves (C1-C2), or a
17
gasket
(B1-B2). Replace the damaged component (fig.16B). AirClik-F
1 series (fig. 16A):
- This may be due to the breakage of the valves (C1 - C2) or of
the gasket (B1). Replace the damaged part (fig. 16A).
The compressor fails to start
If the compressor has difficulty in starting, make sure that: -the
mains voltage corresponds to that indicated on the data nameplate
(fi g. 8)
- electrical extension cables with unsuitable cross-section or
length are not used.
- the room in which the compressor is running is not too cold
(below 0°C)
- the electric line is efficient (plug connected correctly, magneto
thermal switch, fuses not blown)
The compressor fails to stop (only with tank)
if the compressor fails to stop when the maximum pressure is
reached, the tank safety valve will trip. Contact the nearest
authorised service centre for the repairs.
- Do not unscrew any connections with the tank when under
pressure for any reason whatsoever. Always make sure that
the tank is depressurised beforehand.
- Do not drill, weld or intentionally deform the compressed air
tank.
- Do not carry out any operations on the compressor before it
has been unplugged from the power socket.
- The room temperature for its correct efficiency is: 0°C +25°C
(MAX 45°C).
- Do not direct jets of water or flammable liquids over the
compressor.
- Do not place flammable objects near the compressor.
- When stopped temporarily during its use, turn the pressure
switch or the ON/OFF switch to position «0» (OFF) (turned-
off).
- Never direct the jet of air towards people or animals (fig. 24).
- Do not transport the compressor when the tank is pressurised.
- Be aware that some components of the compressor such as
the head and delivery hoses may reach high temperatures,
therefore do not touch the to avoid getting burned (fig. 10).
- Transport the compressor by lifting or pulling it with the
appropriate grips or handles (fig. 5 - 6).
- Children and animals must be kept away from the area in
which the machine is running. If the compressor is used for
painting: a) Do not work in closed areas or near free flames b)
Make sure that the area in which you are working has a good
change of air c) Protect nose and mouth using an appropriate
mask (fig. 18).
- Do not use the compressor if the electric cable or the plug is
damaged.
- Contact the nearest authorised service centre for the
replacement with an original component.
- If it is placed on a shelf or a surface that is raised off the
ground, it must be secured appropriately to prevent it from
tipping off when running.
- Do not insert objects or your hands inside the safety grating to
avoid physical damage and also damage to the compressor
(fig. 19).
- Do not use the compressor to threaten people or animals to
avoid serious injuries.
- Always unplug the compressor from the power socket when
you have finished using it.
ELECTRIC COMPRESSOR MODEL (GMS-VS-AIRCLIK-F 1-F)
Maximum running pressure: 8.5 bar
Maximum working pressure: 8 bar
ELECTRIC COMPRESSOR MODEL (FB 210)
Maximum running pressure: 10.5 bar
Maximum working pressure: 10 bar
NOTE:
The compressor tanks have been manufactured in compliance with
the 2009/105/EC Directive for the European market. The
compressors have been manufactured in compliance with the
2006/42/EC Directive for the European market.
WARNING
GB