Tumbler (Basket); Tumbler (Basket) Support System; Tumbler (Basket) Drive System; Drive Motor "Soft Start - ADC AD-575 Installation Manual

SECTION II
Component/System Descriptions
This section gives a description of all the mechanical
and electrical components and systems.
A. Tumbler (Basket)
The tumbler is made of heavy gauge stainless steel,
perforated panels, four (4) stainless steel ribs, and two (2)
outer tumbler rings made of rolled structural steel channel.
The tumbler is a completely welded assembly, and the
perforated panels are not removable.
B. Tumbler (Basket) Support System
The tumbler sits on four (4) rubber roller wheels which
support the tumbler and also drive it. Two (2) of these
wheels are on the tumbler drive shaft. This drive shaft is
connected to the 3 HP tumbler drive motor by two (2) sets of
V-belts and pulleys. The other two (2) wheels are on the
tumbler idler shaft. This shaft simply supports half of the
weight of the tumbler. Each shaft is 1-1/2 inches in
diameter and sits in two (2) pillow block bearings. The
position of the bearings (and so, the position of the tumber)
can be adjusted by loosening the two (2) bearing hold-down
boots and adjusting the position of the bearings by loosening
or tightening the 1/2-13 bearing adjustment screws.
C. Tumbler (Basket) Drive System
The 3 HP tumbler drive motor is located in the base at
the rear of the dryer. It sits on an adjustable base so that
the motor can be easily adjusted to the left or right in
order to tighten or loosen the V-belts. The speed-reducing
idler shaft which is located next to the drive motor is
supported on two (2) pillow block bearings. Each bearing can
be adjusted forward and backward by tightening or loosening
the adjustment screws located to the left of each pillow
block bearing. This allows you to keep the proper tension on
the V-belts.
The drive motor is started through a reversing magnetic
starter which is located in the high voltage electrical box.
D. Drive Motor "Soft Start"
An extremely important component in the tumbler drive
system is the reduced voltage soft start motor control.