Rm-materials-handling WIRE ROPE HOISTS Service Manual de usuario descargar pdf (Pagina 38)

R&M Materials Handling, Inc.

4501 Gateway Boulevard

Springfield, Ohio 45502

P.: (937) 328-5100

FAX: (937) 325-5319

38/130

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

5.13 Hoisting limit switch Drum size φ 243 mm

The roller lever limit switch unit for hoisting is located under the drum cover, on the limit switch fixing

plate.

5.13.1 Service

• Check the proper tripping point of lower limit function.

• Check that the locking screws (3) are tight.

• Check the wiring for loose connections.

Assembly

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1. Hoist limit switch

2. Connection box cover

3. Fixing screws for limit switch

4. Fixing nut

Disassembly:

• Switch OFF the power supply to the hoist.

• Remove the connection-box cover (2).

• Remove the wires from the limit switch connector in the connection-box.

• Remove the fixing screws (3).

• Extract the limit switch (1).

Re-assembly:

• Fit the limit switch carefully in its place, so that the roller lever is in correct position and in front of the

limit switch fixing plate.

• Tighten the fixing screws (3)

• Re-connect the wires.

• Switch ON the power supply to the hoist and check the proper functioning of the limit switch.

! In many cases it is necessary to re-adjust the limit switch. Be aware of incorrect settings

during testing the operation.

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Rm-materials-handling WIRE ROPE HOISTS Service Manual de usuario Pagina 38