Rm-materials-handling WIRE ROPE HOISTS Service Manual de usuario descargar pdf (Pagina 32)

R&M Materials Handling, Inc.

4501 Gateway Boulevard

Springfield, Ohio 45502

P.: (937) 328-5100

FAX: (937) 325-5319

32/130

R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.

5.9 Hoisting motor and brake

Standard hoists are equipped with two-speed squirrel-cage motors, which are especially designed and

manufactured for hoisting duty. The motors incorporate a cylindrical rotor and class F insulation, and are

conform to the protection standard IP54/DIN40050.

Optionally, the hoist can be equipped with a inverter and specially designed motors for this duty. These

are one-speed squirrel-cage motors with increased insulation of the windings. In addition, these motors

are equipped with a speed sensor as a standard.

The hoisting brake is an electromagnetic safety brake that is closed by spring force.

c_homo1

1. Fan cover

2. Fan

3. Brake

4. Brake disc

5. Fixing screws for motor

6. Friction plate

5.9.1 Service

5.9.1.1 Hoisting motor

• Check that the hoisting motor operates properly when loaded.

• Check for any excessive noise, vibration and/or heat.

• Clean the cooling-ribs surface when needed.

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Rm-materials-handling WIRE ROPE HOISTS Service Manual de usuario Pagina 32