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This manual is designed as a guide to the
installation and maintenance of the 125-pound
capacity cabinet hardmount washer-extractor.
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.
The cylinder is supported at the shaft by two
flange-mounted spherical roller bearings
bolted to the A-frame.
The machine uses one motor to drive the
cylinder with a V-drive system in all speeds.
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.
An electrically operated drain valve is used
to retain the water and wash solution in the
machine during the wash and rinse steps.
The drain valve closes when power is applied
and opens when power is removed, allowing
the machine to drain in the event of a
power failure.
The cylinder is designed with lifters or ribs
that lift the garments from the wash solution
F232097R1
Section 2
Installation
when the cylinder rotates at slow speed and
allow the garments to tumble back into the
solution. The cylinder is perforated, allowing
the water to pass through and drain from
within during the wash process and extract.
Electrical controls for the machine are housed
in a separate enclosure located underneath the
top cover of the machine.
The washer-extractor uses an AC inverter drive
control which provides six preset motor speeds
using a single motor. The V-computer output
board converts motor logic from the computer
to the correct signals for the AC inverter drive.
In addition, all logic inputs to the computer are
routed through this board.
The AC inverter drive uses special balance
detection software in conjunction with the
V-computer to prevent out-of-balance
conditions. When the AC drive detects an
unbalanced load at the end of a drain step, the
computer will make up to seven attempts to
balance the load. As a fail-safe measure, an
overtravel limit switch is installed.
Liquid supplies can be injected directly into
the machine by a customer-supplied external
chemical supply system. Chemical supply
hose connections are made just below the
vacuum breaker, inside the machine. A
terminal strip in the AC drive module provides
control signals.
2–1
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