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Compressed-air maintenance unit and air connection
The compressed-air required in order to drive the compressed-air grinder must be supplied
through a maintenance unit.
The maintenance unit must consist of the following functional units:
water and dirt separator, pressure gauge, oil mister (micromister)
Optimum function of the compressed-air grinder is guaranteed by using
the joke Oiljet maintenance unit (order no. 0 004 050). Further accessories
and the installation package can be found in the current joke catalogue.
The joke Oiljet maintenance unit consists of:
• Manual water separator
• Filter 25 μm
• Pressure reducer
• Micromister
• Pressure gauge
• and wall fixing.
Figure 5.1 joke Oiljet maintenance unit (Order no. 0 004 050)
See the current joke catalogue for further accessories and the installation package.
Setting up and connecting the maintenance unit
1. Check on the maintenance unit whether
• the condensation-water bleed screw is closed; closing is performed by turning clockwise,
• the pressure controller screw is open; opening is performed by turning anticlockwise
2. Fill the oil container up to the mark with joke high performance lubricant X 73012.
The oil level must not rise higher than the baffle plate of the micro oiler.
Functional principle of the oil mister
The micro oil mister guarantees an even, rapid and precisely dispensable lubrication of the hand
grinder.
The oil mister is adjusted to approx. 1-2 drops per minute. Only a fraction of the falling drops are
misted and partly flow back into the reservoir.
Owing to the special air supply, it is possible to reduce the size of the oil particles. The latter can
be transported over long distances as micromist in the air flow. They are hardly deposited. All
surfaces with which they come into contact are intensively and very uniformly wetted. An even,
stable oil film forms immediately at the bearing sites, the thickness of which can be rapidly and
precisely adjusted.
3. Connect the line of the external air supply to the maintenance unit.
Take care that the air flows through the housing in the direction indicated by the arrow.
