Milnor 72044SR2, Mechanical Parts And Service, Page: 51 / 175

Pellerin Milnor Corporation
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How to Release the Brake for Machines with a "Brake Release" Output
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1. Turn the control output called "brake release" on to energize the air cylinder valve.
2. Air pressure compresses the spring and releases the brake. ( Figure 23: The Adjustment be-
tween the Brake Rod and the Air Cylinder, page 47 , item B)
How to Apply and then Release the Brake Quickly
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There are two air tubes at ( Figure 18: A typical hydraulic brake system, page 38 , item 1). One
supplies compressed air from an air valve. The other sends this compressed air to a pressure
switch. If you remove one of the two tubes when compressed air is there, you will apply the
brake.
1. Disconnect the air tubing ( Figure 18: A typical hydraulic brake system, page 38 , item 1).
2. Turn the "brake release" output on. The air valve will supply compressed air to one of the
tubes. ( Figure 18: A typical hydraulic brake system, page 38 , item 1).
3. Quickly move one of the compressed air tubes ( Figure 18: A typical hydraulic brake system,
page 38 , item 1) on and off the air cylinder.
4. After you complete this procedure, connect the air tubing.
How the Brake Operates on Divided Cylinder Machines
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Figure 24. A Typical First and Second Brake on a Divided Cylinder Machine
Two pairs of air tubing connect to different ends of the
air cylinder.
Legend
1. Tubing for air that releases the first brake
(85 -100 PSI) (5.95 - 07.0 kg/cm-cm)
2. Tubing for air that applies the second brake
(10 – 12 PSI) (0.7-0.84 kg/cm-cm)
• On divided cylinder machines, two pair of air tubes connect to different ends of the air
cylinder.
Drive Assemblies