Alliance Laundry Systems UW POCKET HARDMOUNT UW35B2 - Manual (Page 13)

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Installation
This manual is designed as a guide to the installation
and maintenance of the UW35 and UW60 2 speed
rigid-mount washer-extractor.
All information, illustrations, and specifications
contained in this manual are based on the latest
product information available at the time of printing.
We reserve the right to make changes at any time
without notice.
Machine Overview
The design of the washer-extractor emphasizes
performance reliability and long service life. The
cylinder, shell, and main body panels are fabricated of
stainless steel. The washer-extractor is mounted on a
welded base frame which supports the bearings,
cylinder, and shell.
Electrical controls for the washer-extractor are housed
in a separate enclosure located on the top of the
machine. The controls are accessed by removing the
top cover from the control module.
One 2 speed motor drives the cylinder via a V-drive
system. The cylinder is supported via the shaft by two
bearings. The UW35 uses two ball bearing sets held in
place by a cast-iron housing that is bolted to the A-
frame. The UW60 uses two flange-mounted, spherical
roller bearings bolted to the A-frame.
On the UW60, a balance switch is installed between
the faces of the A-frame to signal the controls to slow
the machine when a severely out-of-balance load
occurs during extract.
The cylinder is constructed with lifters or ribs that lift
the laundry from the bath solution when the cylinder
rotates at slow speed and then allow the laundry to
tumble back into the bath. This mechanical action
accomplishes the washing function. The cylinder is
perforated, allowing the water to drain from within
during the wash and extract steps.
The spray rinse feature (available only on S and P
computers) consists of a fiber-reinforced clear hose
connected to the center of the door glass and to both a
hot and cold water inlet valve. A hemispherically-
shaped spray nozzle inside the door glass produces a
fan-action water spray which disperses rinse water
throughout the load.
Water enters the machine through electromechanical
water valves. Vacuum breakers are installed in the
water-inlet plumbing to prevent backflow of water.
A motorized drain valve holds water in the machine
during the wash, soak, and rinse steps. The drain valve
is normally open, which means that it closes only
when power is applied, thus allowing the machine to
drain in the event of a power failure.
A door-lock system prevents opening of the stainless
steel door when a cycle is in progress. It also prevents
operation of the machine when the door is open. The
doorbox contains the door-lock microswitch, door-
closed magnetic switch, and the door unlock solenoid.
The UW35 shaft seal assembly includes two lip seals
integrated into the cast-iron bearing housing. Each seal
has two lips which make contact with a polished sleeve
mounted to the shaft.
The UW60 shaft seal assembly includes a brass collar
held in place on the cylinder shaft with set screws. The
collar has a flange with a ceramic ring which makes
contact with a spring-loaded carbon face seal enclosed
in a nylon housing mounted on the rear of the shell.
The collar contains two internal O-rings which
maintain contact with the cylinder shaft.
The polypropylene supply dispenser is mounted on the
right side of the washer-extractor, viewed from the
front. The dispenser has five supply compartments,
numbered 1–5, starting from the rear of the machine.
The compartments hold plastic supply cups that are
used for either liquid or dry supplies. A nozzle flushes
supplies from the cups with water for the time
programmed in the cycle.
Liquid supplies can be injected directly into the cups
by a customer-supplied external chemical supply
system. Five hose strain reliefs on top of the supply
dispenser facilitate connection to an external supply
system. A terminal strip inside a compartment
attached to the left side of the control module, viewed
from the rear of the washer-extractor, provides
connection points for external supply signals. On all P
and B models this terminal strip is located on the rear
of the module.