R&M Materials Handling WIRE ROPE HOISTS Service - Manual (Page 80)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
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R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
• Switch ON the power supply to the hoist.
• Raise the hook carefully to the upmost position. Constantly watch the rope on the drum and make
sure that the movement stops before the rope guide reaches the end of the drum.
• Adjust the hoist limit switch when needed. See section: “Hoisting limit switch, Assembly,
Adjustment” for details.
5.29 Hook-block, rope reeving and return sheaves
The hook-block consists of the hook forging, hook forging suspension and rope sheave(s). The hook
forging is supplied with a safety-catch. The hook forging rotates in a pressure bearing. Optionally in some
models, the hook-block can be supplied with a rams-horn forging, a locking device to prevent the forging
from rotating, hook forging-insulation or non-standard forging dimensions.
A trolley with a hoist that has four or more rope falls is equipped with a rope sheave beam including one
or more return sheaves.
The reeving depends on the type of hoist, the amount of ropes on the drum and the amount of rope falls.
The reeving scheme is shown in the picture.
2-fall, 1-rope reeving, drum size
φ 303/355/406 mm
c_hbresh02v1a
1. Hook forging
2. Safety-catch
3. Rope sheave