Owner's manual

ManualsBrandsDuff-Norton ManualsHardwareBall Screw Translating

Installation, Operating

and Maintenance

Instructions

Translating Ball

Screw Actuators

Publication Part No. SK-2373

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 mainte-

nance 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.

Warning

The equipment shown in this manual is intended for industrial use only and should not be used to

lift, support, or otherwise transport people.

1/2 ton

through

50 Ton

Summary of content (12 pages)

PAGE 1
® Installation, Operating and Maintenance Instructions Translating Ball Screw Actuators 1/2 ton through 50 Ton Publication Part No. SK-2373 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.
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Contents Section I 1-1. 1-2. 1-3. 1-4. 1-5. Section II 2-1. 2-2. 2-3. 2-4. 2-5. 2-6. 2-7. Section III 3-1. 3-2. Figure 3-1. 2 General Information ................................................................................................................. 3 General ..................................................................................................................................... 3 Applications............................................................................................
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Section I General Information 1-1. General This manual contains maintenance instructions for Duff-Norton translating ball screw actuators. It describes and details procedures for installation, disassembly, cleaning, inspection, and assembly of these actuators. 1-2.
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. The ball screw actuators should have a greater raise than is needed in the actual installation. Should it be necessary to operate the actuators to the extreme limits of travel, it should be done cautiously. Caution Do not allow actuator travel to go beyond catalog closed height of actuator or serious damage to internal actuator mechanism may result. Refer to table of specifications (par. 1.3) for closed height of respective units. 5.
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2-2. Rebuild Procedure Duff-Norton recommends the following procedures for assembly and disassembly of 2800 and 9800 Series actuators. 1. Tag critical parts to facilitate reassembly. 2. Mark all mating surfaces to ensure proper meshing. 3. Clean and lubricate all parts as required. 4. All seals must be replaced when rebuilding. loose. 7. If the ball nut assembly (7) or the worm gear (10) appears to be worm or damaged, disassemble these parts from each other.
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pressed air. Note Before installing new parts, remove any rust preventive, protection grease, etc. 2-6. Inspection 1. Make a visual inspection of shell (3) for broken, cracked or distorted areas. Check threads of all bores for burrs or broken threads. 2. Check shell cap (2), bottom pipe (5), worm gear assembly and flanges (16) for burrs or scratches on their working or mating surfaces. 3. Check small common components (screws, etc.) and replace as required. 4.
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careful that the ball screw does not run out of the ball nut assembly (7). Depending on the model of the jack, the top load baring may fit either on top of the ball nut or the worm gear (10) Note If the top load bearing fits on the ball nut, the bearing should be approximately centered on the nut and the shell cap should be carefully slid onto the ball screw and screwed into the housing. 15. Install shell cap (2) and screw down tight.
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Section III Illustrated Parts List 3-1. General This section contains an exploded illustration of the 2800 and 9800 Series ball screw actuators. The number adjacent to each part on the illustration is the index number. Keyed to this index number on the parts list is the part name 3-2. Parts List for 2800 and 9800 Series Ball Screw Actuators Index No.
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A For inverted model see detail A U.S. Patent No. 3,178,958 British Patent No. 1,042,441 Figure 3-1.
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® P.O. Box 7010 Charlotte, NC 28241-7010 General Office (704) 588-0510 Customer Service (800) 477-5002 Customer Service (704) 588-4610 FAX (704) 588-1994 © 2000 Yale Industrial Products, Inc.