Atlas Copco Desiccant Compressed Air Dryer Dryspell Plus 125

Warning: The compressor and the dryer must be shut down when the state of the desiccant and the state of the O-rings are inspected. It is recommended that all personnel present wear dust masks when desiccant is replaced.

Verify that the dryer is cycling normally as described in the manual

Verify that the silencers are not clogged

If any silencer is clogged, replace it with a new silencer

Replace the filter elements of the filters

Inspect and determine the state of the desiccant

If the desiccant is brown (this indicates oil pollution) or if there is a lot of dust in the desiccant (this condition is caused by disintegration of the desiccant), then change the desiccant

Replace the O-rings of the top and bottom blocks

Sign off on the maintenance procedure

WARNING! Only experienced and licensed electricians who are trained to handle compressed air systems should service or repair Trident products

Verify that the drying-and-regeneration cycle is normal (as described in the section 'Running' in the chapter 'Operation')

If it is found that the operating cycle is not normal, use the troubleshooting section of this manual to address the problem

Verify that the silencers are not clogged

There will be no air flow through a silencer that is clogged

A clogged silencer must be replaced with a new silencer

The silencer may be removed by unscrewing it

Fit the new silencer on the exhaust valve and tighten it

Sign off on the monthly maintenance

If silencers are clogged, replace with new silencers