Pellerin Milnor Corporation 9
1.2.5.1 Fence Dimensions
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The fence must discourage climbing over and prevent crawling under.
1.2.5.2 Fence Materials and Setback
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The fence must be constructed of materials and located so as to prevent personnel from reaching
through gaps in the fence and contacting the enclosed machinery.
1.2.5.3 Gates
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Personnel gates must be held firmly closed but permit personnel to easily pass through when nec-
essary. Gates must be equipped with a positive latching arrangement to prevent accidental open-
ing. Adequate floor space must be provided to allow the gate to swing at least 90 degrees when
fully open. Gates must open outward; that is, away from the fenced perimeter. The floor must be
permanently marked to show the gate’s swing area, to discourage obstructing its movement.
1.2.5.4 Control Circuitry
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All gates must be electrically interlocked with any shuttle conveyors within the fenced area and
with any presses or centrifugal extractors that the fence either encloses or intersects. Opening any
gate must have the following effects:
1. Shuttle(s), press(es), and/or centrifugal extractor(s) stop moving immediately.
2. An audible alarm sounds.
3. Shuttle(s), press(es), and/or centrifugal extractor(s) cannot be restarted merely by closing the
gate(s), but must be restarted at the machine control panel once the gate(s) are closed.
Milnor
®
shuttles, presses and centrifugal extractors provide such functionality when properly in-
terfaced with gate interlock switches.
1.2.5.5 System Emergency Stop Switches
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The laundry must establish rules and procedures that prohibit personnel from remaining within
the fenced area with machine(s) enabled, except in accordance with published maintenance pro-
cedures. System emergency stop switches (panic buttons) should be provided inside and outside
the fenced perimeter. Emergency stop switches should be located so that personnel anywhere in-
side the fenced perimeter are only a short distance from a switch, and they should be clearly
marked as to their locations and function. Connect switches in series with the gate interlocks so
that pressing an emergency stop switch performs the same control function as opening a gate.
1.2.5.6 Isolating Individual Machine Controls
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The interlock circuitry for each machine must be electrically isolated from that of the other ma-
chines. Hence, each gate interlock switch must provide as many pairs of dry contacts as there are
machines to interface to. A pair of switch contacts must never be shared by two or more
machines.
For Owner/Management
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