Great Lakes Air Compressed Air Dryer GBS-250

Warning: This maintenance check requires trained personnel with PPE!

Purge mufflers preventing high noise levels?

Muffler elements clogged due to desiccant fines?

If muffler elements are clogged, replace them.

Purge tower showing backpressure during operation?

If purge tower shows backpressure, replace the muffler element.

Desiccant dust accumulation prior to equipment startup?

If there is desiccant dust accumulation, clean it up.

High volume of desiccant fines from startup?

Warning: This procedure requires trained personnel with PPE!

If desiccant is contaminated, it must be dealt with based on the amount of oil contamination.

Is the coalescing pre-filter in good condition?

Close preventative maintenance of the coalescing pre-filters will extend the life of the desiccant.

Is the desiccant drained through the desiccant drain port?

Spent desiccant is not hazardous and can be disposed of as a general landfill product.

Is fresh desiccant added through the desiccant fill port?

Always leave adequate room above the desiccant bed to permit some bed motion and expansion during dryer operation.

Warning: This maintenance check requires trained personnel with PPE!

Blower intake filter changed based on local atmospheric conditions?

Filter differential is less than or equal to 10” of H²O?

Any signs of high motor amperages or elevated blower discharge temperatures?

Describe any signs of non-warranty blower failure

Sign off on the blower intake filter maintenance

Warning: This maintenance check requires trained personnel with PPE!

Purge mufflers preventing high noise levels?

Muffler elements clogged due to desiccant fines?

Is there backpressure in the purge tower during operation?

If there is backpressure, replace the muffler element.

Desiccant dust accumulation prior to equipment startup?

If there is dust accumulation, clean the equipment.

High volume of desiccant fines from startup?

If there is a high volume of desiccant fines, replace the purge muffler element.

Warning: The Blower Polishing and External Heated modes of operation require an adequate supply of purge air which is essential for proper regeneration of desiccant and good dewpoint suppression.

If your system pressure varies throughout the day, set the purge pressure at a low-pressure period so during those low-pressure periods the purge flow is not starved.

Always consult the factory prior to changing operating conditions.

Is the adjustable purge valve set to the standard conditions?

DO NOT operate the dryer with the purge valve closed the flow path is required in all modes for repressurization.

Sign off on the purge rate maintenance