Sterlco SDAP 90-225 CFM Series Drying and Conveying Systems - Manual (Page 50)

Page 50 SDAP Series PD 2 to PD 4 Drying and Conveying Systems
6 Maintenance
6-1 Work Rules
The installation, operation, and maintenance of this equipment is to be conducted in accordance
with all applicable work and safety codes for the installation location. This may include, but is
not limited to, OSHA, NEC, CSA, and any other local, national, and international regulations.
In addition, you must observe the following specific work rules:
; Keep these operating instructions on hand and follow them when installing, operating, or
maintaining your dryer.
; If these instructions become damaged or unreadable, you can obtain additional copies from
Sterling.
; Only qualified personnel familiar with this equipment should work on or with this unit.
; Work only with approved tools and devices.
; Disconnect power before servicing your dryer. If the disconnect switch you installed has a
lockout, lock it in the OFF position before you perform any maintenance or service.
6-2 Servicing Process Air Filters
Important!
Operating the dryer without the process air filter installed voids your warranty!
Filter cleaning is an important part of your dryer maintenance program.
SDAP carts have a single cartridge canister-type filter in the process and conveying air loop. The
process filter is mounted above the process blower on the rear of the dryer. The conveying filters
are located under the drying hopper next to the conveying blowers. These filters protects the
blowers from plastic fines drawn in from the drying hopper. Regular filter cleaning is essential to
keep your dryer operating at peak efficiency.
You can wash or blow out the filters, but remember, you reduce dirt holding capacity with each
washing. The risk of dirt reaching the clean side of the filter during cleaning, plus possible filter
damage from high pressure washing or blowing, makes washing a gamble.
You can carefully clean or wash the filter when airflow becomes restricted. Do not wash filters
more than six (6) times or use them for more than a year, whichever comes first.