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Instruction Sheet
®
Uni-Lift Mechanical Actuators
POWERFUL SOLUTIONS. GLOBAL FORCE.
M and B Series Models
L2943 Rev. A 11/09
1.0 GENERAL SAFETY INFORMATION
Read all instructions, warnings and cautions
carefully. Follow all safety precautions to avoid
personal injury or property damage during system
operation. Enerpac cannot be responsible for damage or injury
resulting from unsafe product use, lack of maintenance or
incorrect product and/or system operation. Contact Enerpac
when in
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1 M-Series Models 2 1 2 B-Series Models 3 3 = Key: 1. Screw End 2. Load Screw 4 3. Tapered Roller Bearings 4 4. Driven Gear 7 7 5. Housing 5 6. Protective Tube 5 7. Input Shaft and Worm Gear 6 6 Figure 1, Major Features and Components 4.0 ACTUATOR FEATURES 5.1 Translating Confi guration ® Both M and B Series Uni-Lift models incorporate a ground On these actuators, the load alloy steel worm gear which drives a high tensile bronze gear screw “translates” through nut, accurately machined to high
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5.3 Keyed Translating Confi guration 8.0 INSTALLATION REQUIREMENTS In applications where rotation cannot be prevented externally, 1. Be certain that the rated capacity of the actuator exceeds the a keyed design actuator is required. These models are keyed maximum load that may be applied to it during use. internally to prevent rotation of the screw, so that linear motion is 2. Check that the maximum allowable input speed (RPM) of the produced. See fi gure 4. actuator will not be exceeded. ®
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CAUTION: If limit switches are furnished by Enerpac, Table 1 - Threaded Fastener Torque Values they are NOT factory set. Limit switches should be set BOLT SIZE APPROXIMATE TORQUE VALUE by carefully moving the set position by hand or jogging inch metric pound force kilogram force the motor. Exercise care when operating the unit at the (inches) (centimeters) extreme limits of travel. 1/4 M6x1 6 6.9 CAUTION: Emergency stop nuts are intended for use only as secondary stops, in the event of ove
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4. Special Requirements - Special greases approved for food WARNING: Fabrication and installation of shaft and industry applications and greases for extremely low temperature coupling guards is the customer's responsibility. applications below -100°F [-73°F] are available. Contact Enerpac Guards and other protective devices are NOT provided for additional information. by Enerpac. 10. Before startup, apply a light fi lm of grease to the load screw Small Models threads. Check that the actuat
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10.3 Periodic Inspection and Maintenance � Check that the power output shafting is aligned with respect to the input shaft of the actuator. Binding during rotation will cause Perform the following inspection and maintenance procedures premature wear. every 30 days or more often if needed: Note: When the actuator(s), shafting, and gearboxes are properly � Wipe down and visually inspect the actuator. Check for coupled together in a system, it should be possible to rotate the damage, suc
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® Table 2 - Troubleshooting Guide - Enerpac Uni-Lift Mechanical Actuators Problem Possible Cause Action Housing failure. 1. Actuator overloaded. Reduce load or replace actuator with a larger actuator of suffi cient capacity. 2. Improper support. Check that the actuator is supported under the entire base area (not just at the bolt holes). 3. High shock. Replace existing actuator with a larger actuator of suffi cient capacity. 4. Uneven bolting torque. Torque all mounting bolts evenly. Worm shaft
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12.0 CONFIGURATION CHART, M-SERIES ACTUATORS M1UT 0240LT -A11B1L62M5NS2 1 23 4 56 7 8 910 11 12 13 1 Model Type 11 Motor Specifications 4 Screw Configuration Third Digit M = Machine Screw Actuator First Digit 1 = 56C T = Translating M = Motor 2 Ton Rating 2 = 143/145TC R = Rotating Second & Third Digits A5 = .25 Ton 3 = 182/184C A = Translating 1 = 1/4 hp, 1750 RPM A15 = .75 Ton 4 = 182/184TC (Anti-Backlash**) 2 = 1/4 hp, 1140 RPM A20 = 1 Ton 5 = 213/215C K = Keyed Translatin
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14.0 CONFIGURATION CHART, B-SERIES ACTUATORS B1UR0240LP-A11B1L63M3NS2 1 23 4 56 7 8 910 11 12 13 1 Model Type 6 Gear Ratio 11 Motor Specifications 9 Boot Specifications B = Ball Screw Actuator L = Low First Digit First Digit H = High B = Boot M = Motor 2 Ton Rating Second & Third Digits Second Digit 7 End Configuration 1 = 1 Ton 1 = 1/4 hp, 1750 RPM 1 = 1 Boot, No Guides 2 = 2 Ton V = Threaded End 2 = 1/4 hp, 1140 RPM 2 = 2 Boots, No Guides 5 = 5 Ton C = Clevis End 3 = 1/3 hp,
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Enerpac W orldwide Locations ✦ e-mail: info@enerpac.com ✦ internet: www.enerpac.com Africa Actuant China Ltd. (Peking) Japan South Korea United Kingdom, Ireland ENERPAC Middle East FZE 709B Diyang Building Applied Power Japan LTD KK Actuant Korea Ltd. Enerpac Ltd Office 423, JAFZA 15 Xin No. 2 Besshochou 85-7 3Ba 717, Bentley Road South P.O. Box 18004 Dong San Huan North Rd. Kita-ku, Shihwa Industrial Complex Darlaston, West Midlands Jebel Ali, Dubai Beijing City Saitama-shi 331-0821 Jungwang-
