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DEPRAG
6.2 Air Drill Operation
Make sure that all air supply parts are correctly connected, prior
to operating the tool.
Do not step into the air stream.
Turn the air-supply to „ON".
If necessary, adjust the air-pressure or the flow-pressure to achieve
the required speed or torque.
Adjust the oiler as described in chapter 5.6.
6.3 Measure Surface Temperature (if drill is used in an Ex-area)
The details of the maximum allowable surface temperature as
shown on the drill tag are based on measurements under normal
environmental- and installation conditions. Small changes to
those conditions (such as a constructed installation area) will
considerably effect the temperature development!
It is very important to measure the surface temperature of the drill
Measure
during operation. Measurement can be done using conventional
Surface
temperature measuring instruments.
Temperature
The surface temperature should be taken on the marked measuring
points „M1",„M2",„M3" and „M4" (see illustration 2).
The maximum allowable surface temperature is reached after approx..
1.5 hours of operation.
The maximum temperature may not exceed
•
•
Ambient temperature in the Ex-area:
-20°C to +40°C.
If the surface temperature exceeds this mandate. The drill must
be stopped immediately and you will need to contact DEPRAG
right away .
40°C for group II category 2G, IIB Gb
110°C for group I M2, I Mb
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