450412-4 www.amdry.com 5
NOTE: Frequency can best be determined at each
location.
Daily
(Beginning) of each work shift.
Clean lint from the drawer and screen. Inspect lint screen
and replace if torn.
Weekly
Clean lint accumulation from lint chamber, thermostat, and
microprocessor temperature sensor (sensor bracket) area.
WARNING: To avoid the hazard of electrical
shock, discontinue electrical supply to dryer.
90 Days
Remove lint from tumbler, drive motors, and surrounding
areas. Remove lint from gas valve burner area with a
dusting brush or vacuum cleaner attachment.
NOTE: To prevent damage, avoid cleaning, or touching
ignitor and flame-probe assembly.
Remove lint accumulation from inside control box and at
rear area behind control box.
Every 6 Months
Inspect and remove lint accumulation in customer
furnished exhaust ductwork system and from dryer’s
internal exhaust ducting.
WARNING: The accumulation of lint in the
exhaust ductwork can create a potential fire
hazard.
Do not obstruct the flow of combustion and ventilation
air. Check customer furnished back draft damper in
exhaust ductwork. Inspect and remove any lint
accumulation, which can cause damper to bind or
stick.
NOTE: A back draft damper that is sticking partially
closed can result in slow drying and shutdown of the heat
circuits safety switches or thermostats.
When cleaning dryer cabinets, avoid using harsh
abrasives. A product intended for cleaning appliances is
recommended.
Adjustments
7 Days After Installation
and Every 6 Months Thereafter
Inspect bolts, nuts, screws, (bearing setscrews),
nonpermanent gas connections (unions, shutoff valves,
orifices, and grounding connections). Motor and drive belts
should be examined. Cracked or seriously frayed belts
should be replaced. Tighten loose V-belts when necessary.
Complete operational check of controls and valves.
Complete operational check of all safety devices (door
switch, lint drawer switch, sail switch, burner and hi-limit
thermostats).
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Lubrication
The drive shaft bearings and idler shaft bearings should
be lubricated every 3 months. Use a #3 grease or
equivalent. Lubrication is necessary.
The motor bearings and under normal/most conditions
the tumbler bearing are permanently lubricated. It is
physically possible to re-lubricate the tumbler bearing if
you choose even though this practice may not be necessary.
Use Industrial Chevron ball or roller bearing SRI grease
NLGI2 or its equivalent, which has a broad operating
temperature range of 22º F (-6º C) to 350º F (177º C).
Installation Requirements ___________Installation should be performed by competent technicians
in accordance with local and state codes. In the absence
of these codes, the installation must conform to applicable
AMERICAN NATIONAL STANDARDS: National Fuel Gas
Code ANSI.Z223.1-LATEST EDITION or National Electrical
Code ANSI/NFPA No. 70-LATEST EDITION, or in Canada,
the installation must conform to applicable Canadian
Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/
CGA-B149.2-M91 (L.P. Gas) or LATEST EDITION (for
General Installation and Gas Plumbing) or Canadian
Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST
EDITION (for Electrical Connections).
Enclosure, Air Supply,
and Exhaust Requirements
NOTE: The following information is very brief and
general. For detailed description, refer to the installation
manual supplied with dryer.
Bulkheads and partitions around the dryer should be made
of noncombustible materials. Allowances should be made
for the opening and closing of the control door and lint
door. (Refer to appropriate installation manual for
recommended distances and minimum allowances
required.)
When the dryer is operating, it draws in room air, heats it,
passes this air through the tumbler, and exhausts it out of
the building. Therefore, the room air must be continually
replenished from the outdoors. If the make-up air is
inadequate, drying time and drying efficiency will be
adversely affected. Ignition problems and sail switch
“fluttering” problems on gas dryers may result, and you
also could have premature motor failure from overheating.
The air supply must be given careful consideration to insure
proper performance of each dryer.
IMPORTANT: Make-up air must be provided from a
source free of dry cleaning fumes. Make-up air that is
contaminated by dry cleaning fumes will result in
irreparable damage to motors and other dryer
components.
Exhaust ductwork should be designed and installed by a
competent technician. Improperly sized ductwork will
create excessive back pressure, which will result in slow
drying, increased use of energy, and shutdown of the burner
by the airflow (sail) switch, burner hi-limit or lint chamber
hi-heat protector thermostat. (Refer to appropriate
installation manual for more details.)