100 and 250 pound electromechanical actuators (6 pages)
Summary of Contents for Duff-Norton UM28632
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Publication Part No. SK-2373-R CAUTION This manual contains important information for the correct installation, operation and maintenance of the equipment described herein. All persons involved in such installation, operation, and maintenance should be thoroughly familiar with the contents. To safeguard against the possibility of personal injury or property damage, follow the recommendations and instructions of this manual and keep it for further reference.
-20 to 200 ° F. If your environment is This manual contains maintenance instructions dirty and/or contains abrasive particles it is impor- for Duff-Norton® rotating ball screw actuators. It tant to protect the screw with a boot. If your atmo- describes and details procedures for installation,...
1-4. Dimensions Note: Ball nut must be kept from rotating to prevent it from self-lowering. Worm and gear set is not self-locking. Use brake on worm shaft or motor. Housing dimensions and base configurations vary. Table 3. Upright Models Drawing Model Number Ref.
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1-4. Dimensions (cont.) Note: Ball nut must be kept from rotating to prevent it from self-lowering. Worm and gear set is not self-locking. Use brake on worm shaft or motor. Housing dimensions and base configurations vary. Table 4. Inverted Models Drawing Model Number Ref.
Note rior lubricating properties affecting both wear life Disassembly should be accomplished on a clean and maximum duty cycle. Duff-Norton is not aware cloth. of an equivalent grease. If this grease is not 1. Disassembly Inspection (Refer to Figure 3-1). To...
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long enough to extend 1 1/2˝ to 2˝ beyond 6. Remove ball screw (5) and gear assembly (6) each end of the lifting nut. from shell. For ease in removing ball screw and gear assembly, loosen cap screws (9) holding Note flanges (11) and shift worm (14) slightly.
Figure 2-2. Ball Nut Storage Arbor 16. Remove key (22) from ball screw (5). on their working or mating surfaces. 17. Remove spacer (23) from ball screw. 3. Check small common components (screws, etc.) and replace as required. Note On some models spacer is threaded. 4.
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away from ball screw threads. lockwashers (10). Care should be taken to prevent cutting of seal on worm keyway. 6. Thread locknut (20) on ball screw (5) and tighten securely against worm gear (6). Make certain For 1/2-Ton Models - Slide bushings (11a) over that this assembly is tightly drawn up.
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20. Refer to Figure 2-2 for reassembly of lifting nut thread it onto ball screw (5). After lifting nut (24) from tube arbor to ball screw (5). is completely threaded onto ball screw, remove arbor from ball screw pilot. a. With lifting nut centered on arbor tube, grasp lifting nut and arbor to prevent lifting nut from Note running off of arbor, and remove binding...
Section III Illustrated Parts List 3-1. General illustration is the index number. Keyed to this index This section contains an exploded illustration of number on the parts list is the part name the 2800 and 9800 Series rotating ball screw actua- tors.
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Figure 3-1. Exploded Illustration 2800 and 9800 Series Ball Screw Actuators...
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