R&M Materials Handling WIRE ROPE HOISTS Service - Manual (Page 25)

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
25/130
R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
5.6 Trolley buffers
The hoisting trolley is provided with rubber buffers. Some models are equipped with buffer extensions.
5.6.1 Service
• Check that the buffers and runway end stops are in good condition. Replace broken buffers.
• Check that the hoist buffers bump into the runway end stops or buffers of other trolley.
5.7 Hoisting machinery
The main components of the hoisting machinery are the hoisting motor, gear and rope drum. Power from
the motor is transmitted via the rim gear of the transmission to the rope drum. One end of the
transmission train that is comprised of the hoisting motor, gearing and rope drum is fixed to the end
flanges of the hoisting machinery.
5.7.1 Service
• Check and replace the coupling between motor and gearbox. Note the exceptional service interval.
See the sections “Service” of the individual components for details.
5.7.2 Assembly
Drum size ø 303/355/406 mm
The motor and gearbox are attached as a complete sub-assembly inside the rope drum. The motor-
gearbox subassembly must be extracted from the drum as a whole, in case any work on the gearbox,
motor or coupling is required.
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1. Hoisting motor
2. Hoisting gearbox
3. Cover of connection box
4. Hoisting limit switch