Chapter 3. Routine Maintenance
PELLERIN MILNOR CORPORATION
Figure 19: Proximity Switches These are examples. Your machine can look different.
1 Station Press
Centrifugal Extractor
Shuttle Conveyor
Typical Proximity Switch
Legend
→
. Area that must be clean. Remove contamination with a soft
cloth. If the area is hard to touch, use a cloth on the end of a
wood dowel or metal rod. If necessary, use a safe cleaning
agent.
.
Supplement 3
How to Do a Test of Emergency Stop Mechanisms
This test applies to machines that have one or more stop mechanisms in addition to the Stop
button (
0
). Do this test at the intervals given in the maintenance summary.
Definitions:
3-wire circuit
—a series electrical circuit on a Milnor machine that must close before the
machine can operate. If a switch in the circuit opens, machine movement stops and the
operator alarm (a buzzer and a display message) comes on. When you push the start button
(
1
), this closes the 3-wire circuit, which stops the operator alarm and lets the machine
operate.
emergency stop mechanism
—a manual control that opens the 3-wire circuit when a person or
object operates the control. Examples - emergency stop button, kick plate, pull cord.
emergency stop button
—a red push button on a yellow field that locks when a person pushes
it (the electrical contacts stay open). It is necessary to turn the button clockwise to unlock it.
A machine can have zero or more emergency stop buttons.
kick plate
—a metal plate on a shuttle conveyor that operates a switch when an object applies
sufficient force to the plate. The kick plate is usually the first component of the shuttle to hit
an object in the shuttle path. All Milnor shuttles that go left/right on a path have kick plates
on the two sides of the machine.
WARNING 29 :
You can be killed or severely injured if a shuttle strikes you even if you
come in contact with the kick plate first.
• Never do a test of the kick plate when the shuttle operates.
pull cord
—a wire on a conveyor that operates a switch when a person pulls the wire. All
Milnor free-stand conveyors (a conveyor that is not a component of a larger machine) have
pull cords on the two sides of the conveyor.
Do a test of all emergency stop mechanisms on the machine as follows:
1. Apply power to the machine (
M
).
2. Push the start button (
1
).
Do not cause the machine to operate.
For example, do not start
40
Summary of Contents for 48040F7B
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Page 54: ...Gilt für die Milnor Produkte mit den folgenden Modellnummern 48040H7N 68036H5N 50 ...
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