7 maintenance, 1 work rules, 2 cleaning out the drying hopper – AEC HE Mass Flow Series Drying hoppers User Manual
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HE
• CHE • BCHE Mass Flow Series Drying Hoppers
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7 Maintenance
7-1 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 the instructions become damaged or unreadable, you can obtain additional copies from
AEC/Whitlock.
; 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.
Note: Refer to your dryer O&I manual for dryer maintenance.
7-2 Cleaning Out the Drying Hopper
1. Turn off the conveying equipment filling the hopper.
2. Close the slide gate.
3. Position a Gaylord, barrel or other suitable container below the drying hopper cleanout
spout. Make sure it is large enough to hold the material that remains in the drying hopper.
Note: A section of gutter, flex hose, etc., is typically used to direct the flow of material from the
drain spout.
4. Remove the cap on the drain spout and allow the material to drain from the drying
hopper.
5. Remove the material below the drain spout outlet if desired. A hopper loader, central
vacuum system or pneumatic conveyer material pickup device may be used to remove the
remaining material without waste. A shop-type vacuum cleaner may be used if the
remaining material does not need to be saved for re-use.
6. Clean out any remaining material from below the slide gate. The air diffuser assembly
may be removed through the access door for a thorough cleaning.