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Instruction book
5 Adjustments and servicing
procedures
5.1 Air filter (1-Fig. 5.1)
1. Stop the compressor. Remove the air filter cover by turning
it anti-clockwise. Remove the air filter element. Discard
damaged elements.
2. If necessary, clean the cover. Fit the new element and the
cover.
3. Reset service indicator (3-Fig. 3.3) by pushing the knob in
the extremity of the body.
4. Reset the service warning. Consult the User manual for
Elektronikon I and II regulators: Part 1, section 7 for
Elektronikon I or Part 2, section 15 for Elektronikon II.
5.2 Coolers
Keep the coolers clean to maintain the cooling efficiency.
Remove any dirt from the coolers with a fibre brush. Never
use a wire brush or metal objects. Then clean by air jet in
reverse direction of normal flow while covering all compressor
parts under the coolers. If it is necessary to wash the coolers
with a cleansing agent, consult Atlas Copco.
5.3 Safety valve (1-Fig. 3.3)
Operate the safety valve by unscrewing the cap one or two turns
and retightening it (or by pulling the valve lifting lever, if
provided).
Testing
The valve can be tested on a separate compressed air line. If
the valve does not open at the set pressure stamped on the valve,
consult Atlas Copco.
Warning No adjustments are allowed. Never run the
compressor without safety valve.
1 Air filter
2 Unloader
3 Bolt
Fig. 5.1 Air filter and unloader
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