(2) A single cylinder washing machine shall be guarded as prescribed in R
408.17146.
(3) A washing machine shall have a device for holding the outer and inner doors
open for loading and unloading.
History: 1979 AC.
R 408.17143 Extractors.
Rule 7143. (1) A rotating extractor shall be equipped with a metal cover interlocked
in a manner so as to prevent opening it when the basket is in motion or to prevent power
operation of the basket when the cover is open.
(2) A rotating extractor shall not be operated at a speed in excess of the rated
speed, which speed shall be permanently marked on the machine.
Where the rated speed is not available, table 1 shall be followed:
(3) A rotating extractor shall be:
(a) Equipped with a braking device.
(b) Secured to the floor or foundation to prevent lateral movement.
(c) Loaded in a manner to keep the extractor in balance.
(d) Inspected not less than once a year at points of wear such as, but not limited to,
the basket, rings, and cover, and repaired where defects that are a hazard are found.
(4) A squeeze extractor shall be equipped with:
(a) A cover interlocked to the compacting mechanism which shall prevent the
removal of the cover until the pressure has been relieved.
(b) A 2-hand control device which shall be operated concurrently to activate the
cover placement.
(5) A steam, hydraulic, or pneumatic-type squeeze extractor shall be equipped
with a pressure relief valve set to open if the applied pressure is 10% more than the
maximum rated operating pressure. The maximum operating pressure shall be
permanently labeled or marked on the machine.
(6) Table 1 reads as follows:
TABLE 1
30-inch diameter extractor -- 1200 r.p.m.
40-inch diameter extractor -- 900 r.p.m.
48-inch diameter extractor -- 750 r.p.m.
60-inch diameter extractor -- 500 r.p.m.
History: 1979 AC; 1981 AACS.
R 408.17144 Combination washer-extractor.
Rule 7144. A combination washer-extractor shall be:
(a) Equipped with a braking device.
(b) Equipped with a steel door interlocked to the drive mechanism which will
prevent opening the door while the cylinder is in motion and prevent operation while the
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