R&M Materials Handling WIRE ROPE HOISTS Service - Manual (Page 29)

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.
9. Hoisting motor
10. Fixing screws for motor
11. Friction plate.
12. Brake disc.
13.Hoisting brake
14. Fixing screws for hoisting brake
15. Fan.
16. Fan cover.
Disassembly:
• Lower the hook to the ground. Switch OFF the power supply to the hoist.
• Remove the protective cover of the hoisting machinery.
• Lock the rope drum with i.e. a wooden wedge, to prevent it from rotating.
!
The weight of the rope may cause the drum to rotate when the gearbox is detached.
• Open the connection-box (3) and remove the wires.
• Securely suspend the hoisting motor with i.e. a chain hoist.
• Remove the fan cover (16) and the fan (15)
• Remove the fixing screws of the brake (14) and remove the brake (13), brake disc (12) and friction
plate (11).
• Remove the motor fixing screws (10)
• Extract the motor (9) from the gearbox (7).
• Remove the coupling (8).
• Remove the fixing screws for the gearbox (6) and the fixing plate for the gearbox (5).
• Extract the gearbox (7) from the hoist.
Re-assembly:
#
It is advised to change the coupling each time when hoisting machinery is disassembled.
• Lubricate the inside of the coupling.
• Place the coupling on the gearbox shaft and assure that it fits tight and correct.
!
The groove in the coupling MUST face the gearbox side!
• Fit the gearbox in it’s place Be aware of:
- Guide pins on the bearing-house.
- Drive pinion of the gear fits correctly into the gear-rim of the drum. Rotate the gearbox’s shaft to guide the
pinion into the gear-rim and to check the right fitting.
• Fit the gearbox fixing plate (5) on its place and fasten the fixing bolts (6).
• Tighten the bolts to the correct torque.
• Place the motor onto the gearbox and guide the wires through the holes into the connection box.
• Make sure that the motor’s shaft fits correctly into the splines of the coupling.
!
Do NOT tighten the assembling bolts of the motor before the motor fits correctly and
straight in the flange of the gearbox. There is a risk to damage or misplace the inner circlips
of the coupling when using force.
• Tighten the motor fixing bolts (10) to the correct torque.