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Page Title:
Interlocking and safety devices |
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|  MIL-W-43001F
3.5.3.1 Interlocking and safety devices. When tested as specified in 4.6.1,
and 4.6.2 the shell doors (loading and unloading) shall be so interlocked,
mechanically and electrically that conformance to the following will be
accomplished.
(a) Both outer doors may not be opened simultaneously.
(b) The post-wash and extract side door shall not open until the entire
formula cycle has been completed.
(c) The prewash side door shall not open until the post-wash and extract
side operation has unloaded and/or released the machine.
(d) Once the machine is released by the post-wash and extract side
operator, the door on the post-wash and extract side shall not open until
another formula cycle has completed its cycle.
(e) Neither operator will be able to "inch" or "spot" the cylinder unless
the door on the opposite side is closed.
(f) When the post-wash and extract door is open, there shall be no
openings (including the drain valve) between the inside of the machine and the
pre-wash side of the loading area that would permit air to pass from the pre-
wash side to the post-wash and extract side.
(g) All interlock arrangements shall be so designed that they will remain
in effect both during a power or service outage and after restoration of the
service.
3.5.3.2 Operator signals.
3.5.3.2.1 Unload side. The unload side shall be provided with signals
(audible, visual, or both audible and visual). When tested as specified in
4.6.1, the following shall be accomplished.
A visual signal shall indicate when the machine is being loaded.
a.
b. A visual signal shall indicate when the machine is washing or
extracting.
c. Audible and visual signals shall indicate when the machine is ready
for unloading and whenever the machine requires the operator's attention at the
unloading side.
3.5.3.2.2 Loading side. The loading side shall be provided with signals,
(audible, visual, or both audible and visual). When tested as specified in
4.6.1, the following shall be accomplished.
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