8 American Dryer Corporation 450412-4
Drive Shaft Assembly
(Viewing from the front of the dryer)
Behind front panel on the right side of the dryer, you can
view the drive shaft assembly, which consists of a 9-inch
(22.86 cm) drive pulley, two 6-inch (15.24 cm) wheels, and
two 1-inch (2.54 cm) pillow block bearings.
Idler Shaft Assembly
(Viewing from the front of the dryer)
Behind the front panel on the left side of the dryer you will
view the idler shaft assembly, which consists of one 6-inch
(15.24 cm) wheel, and two 1-inch (2.54 cm) pillow block
bearings.
Tumbler
The tumbler consists of a tumbler, which has 4 ribs and 4
removable perforated panels, which are mounted to the rib
sections of the tumbler with 1/4-20 x 1/4” socket button
head screws.
Main Door Switch
The main door switch is mounted to the front panel behind
the main door. When the main door opens, the switch will
also open, preventing the dryer from operating. The main
door switch is a safety device and should never be disabled.
Burner Hi-Limit(Gas Models Only)
The hi-limit thermostat is
a disc-type thermostat
set at 330º F (166º C) and
located near the burner.
If the burner flame gets
too hot, this thermostat
will shut off the burner.
This is generally caused
by low airflow through the
dryer.
Sail Switch (Gas Models Only)
The sail switch is located on the front of the burner box. A
sail switch consists of a round damper plate on a lever
arm, which is in contact with an electric switch. When the
fan/blower comes on, it draws air through the gas burner.
This creates a negative pressure inside the burner box,
and this negative pressure pulls in the round damper and
activates the sail switch.