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DSI Dynamatic AS-703 Instruction Manual

Eddy current air-cooled brakes
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IM-180001-2019
Eddy Current Air-Cooled Brakes
Model AS-703 through AS-708
INSTRUCTION MANUAL
(AS-703 –AS-708 – Revised 2019)
DRIVE SOURCE INTERNATIONAL INC.
7900 Durand Avenue, Bldg. 3
Sturtevant, WI USA 53177
Toll Free: (800) 548-2169
Phone: (262) 554-7977 - Fax: (262) 554- 7041
Email:
sales@dynamatic.com
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  • Page 1 IM-180001-2019 Eddy Current Air-Cooled Brakes Model AS-703 through AS-708 INSTRUCTION MANUAL (AS-703 –AS-708 – Revised 2019) DRIVE SOURCE INTERNATIONAL INC. 7900 Durand Avenue, Bldg. 3 Sturtevant, WI USA 53177 Toll Free: (800) 548-2169 Phone: (262) 554-7977 - Fax: (262) 554- 7041 Email: sales@dynamatic.com...
  • Page 2 Refer to the enclosed engineering drawings, which are furnished for your specific unit. For additional information regarding contents of this manual, please send your request to DSI/Dynamatic®, Fax: 262-554-7041, or call: 262/554-7977, or Toll free at 1-800/548-2169.

  • Page 3: Table Of Contents

    Table of Contents SECTION 1 ............................5 GENERAL INFORMATION ............................. 5 Introduction .................................. 5 Safety ................................... 5 Training ..................................5 Receiving and Damage Claims ........................... 5 Handling..................................6 Storage ..................................7 SECTION 2 ............................8 EQUIPMENT DESCRIPTION ............................8 Operation ..................................8 Cooling..................................
  • Page 4 Figures & Tables SECTION 1 ............................5 Hazard Labels Figure 1-1 ............................6 SECTION 2 ............................8 Application Data Table 2-1 ............................9 Typical Brake Cutaway Figure 2-1 ..........................9 G-2 Generator Specifications Figure 2-2 ........................10 Alnico Stator Lamination Assy. Figure 2-3 .........................

  • Page 5: General Information

    Therefore, it is DSI/Dynamatic®. There is a charge for this service. essential that only trained, skilled personnel be Special training schools structured around your allowed to work with this equipment, under specific equipment can also be arranged.

  • Page 6: Handling

    IMMEDIATELY file a claim with the carrier. At the equipment may be lifted with a suitable sling under same time, notify DSI/Dynamatic®. If assistance is the base or by attaching cables to eye bolts needed to settle a claim, contact the factory. To...

  • Page 7: Section 2

    SECTION 2 EQUIPMENT DESCRIPTION Operation Applications Caution When Continuous Loading Eddy-current brakes consist basically of a rotating member keyed to a straight through shaft and a Regardless of speed, the amount of continuous stationary field assembly. The shaft is supported by torque that can be applied must not exceed a an anti-friction bearing in each end bell.

  • Page 8: Dissipation

    Application Data Table 2-1 Brake Model No. Data Slip RPM AS-703 AS-704 AS-705 AS-706 AS-707 AS-708 1800 Maximum Torque 1200 1740 Lb. Ft. 1740 Dissipation 3600 Maximum 1800 Continuous 1200 11.5 Horsepower 17.5 Inertia - Lb. Ft. 0.82 1.64 16.0 Size controller Approximate Shipping 1010...

  • Page 9: Generator Specifications Figure 2-2

    G-2 Generator Specifications Figure 2-2 the magnet be necessary for remagnetization or repairs, the entire operator assembly should be returned to the factory. Description The generator if used, is a separately mounted type generator that is contained within its own housing and is driven by appropriate pulleys and belts from the shaft.

  • Page 10: Speed/Torque Curve - Model As-703 Figure 2-4

    Speed/Torque Curve – Model AS-703 Figure 2-4 Speed/Torque Curve – Model AS-704 Figure 2-5 Speed/Torque Curve – Model AS-705 Figure 2-6...

  • Page 11: Speed/Torque Curve - Model As-706 Figure 2-7

    Speed/Torque Curve – Model AS-706 Figure 2-7 Speed/Torque Curve – Model AS-707 Figure 2-8 Speed/Torque Curve – Model AS-708 Figure 2-9...

  • Page 12: Section 3

    SECTION 3 INSTALLATION Angular misalignment and Offset misalignment Location between directly connected shafts will cause increased bearing loads and vibration, even when Select permanent location affording the connection is made by means of a flexible unobstructed flow of clean cooling air to permit the coupling.

  • Page 13: Parallel Offset Alignment

    Note - Refer to Table 3-1 for permissible parallel may occur later because of settling foundation, offset misalignment. wear of bearings, etc., and it is well to make periodic checks to see that such misalignment does Angular Alignment not become excessive. Angular misalignment is illustrated in Figure 3-1.

  • Page 14: Permissible Operating Misalignment* Table 3-1

    Permissible Operating Misalignment* Table 3-1 Basic Maximum Angular Parallel Angular Model Coupling with a Measured Offset  Y, In./In. Size Parallel Offset  X, In. Radius In./In. Radius** 1.50 .0050 .0040 Y  = .0040- .8 X  2.00 Y  = .0058- .6 X  .0100 .0058 2.00...

  • Page 15: V-Belt Drive Formulas

    "P", depending on the size of the sheaves, since 1 – 0.8 G smaller sheaves require tighter belting. Belting (Also, T = eKO) strains imposed on the shaft of this unit should never be greater than the amount required to Where: T = tight side tension, lbs.

  • Page 16: Bearing Load Calculations

    Arc of Contact Correction Factors G and R Table 3-3 Small Sheave Small Sheave Factor Factor Factor Factor Arc of Arc of Contact Contact 180° 1.00 1.000 133° .917 174° .999 127° .893 169° .995 1.00 120° .866 163° .989 1.10 113°...

  • Page 17: Outline Dimensions

    Outline Dimensions Outline Drawings Figure 3-4 AII models, except AB-707, are furnished with a water-tight junction box; customer must drill opening where desired. Tolerance for 1.50 in. and smaller shafts is +1000/-.0005; for more than 1.50 in. it is +000/-.001...

  • Page 18: Section 4

    Recommended Greases lubrication. Refer to Figure 4-1. The grease specification is per DSI/Dynamatic® Allow only experienced maintenance personnel to Engineering Standards MML 4-1.2. This is a general-purpose industrial grease, NLG1 #2 grade, lubricate this unit.

  • Page 19: Bearing Dimensions

    Recommended Greases Table 4-1 Company Grease Shell Alvania #2 Gulf Gulfcrown #2 Texaco Multifak #2, Premium RB, Regal AFB 2 Mobil Mobilux #2 Bearing Dimensions Figure 4-2 Bearing Dimensions Dimensions – Inches Table 4-2 AB-703, AB-705, AB-707, Bearing AB-704 AB-706 AB-708 1.7722 2.1660...

  • Page 20: Section 5

    SECTION 5 OVERHAUL Disassembly/Reassembly AB-703 & AB-705 Disassembly General 1. Remove unit from operation and pull off shaft coupling hubs, or sheaves, with approved Read these instructions carefully and check the bearing puller and remove shaft key(s) (1). appropriate typical Cross Section Drawing with your own assembly drawing to determine the extent 2.

  • Page 21: Typical Cross Section Drawing - As-703 Figure 5-1

    Typical Cross Section Drawing – AS-703 Figure 5-1 Model AS-703 Parts List Table 5-1 Item No. Description Part Number DY-373 Cap Screw, Lockwasher DY-10311, DY-4771 Field Assembly B-64018-(See Master Bill) Housing D-64027-0100 Bearing DY-12814 Shaft (double shaft extension) C-32295 (single shaft extension) C-34901 Retaining Ring DY-1476...

  • Page 22: As-703 & As-705 Reassembly

    6. Remove bolts holding the coil to the field AS-703 & AS-705 Reassembly assembly at each end, after match marking, being careful not to scrape insulation off of coil 1. If fan (8) was removed, install key (9) into shaft; Ieads.
  • Page 23 Typical Cross Section Drawing – AS-704 Figure 5-2 Model AS-704 Parts List Table 5-2 Item No. Description Part Number DY-1641 Cap Screw, Lockwasher DY-132, DY-77 Field Assembly B-64018-(See Master Bill) Housing D-32304 Bearing DY-12814 Shaft (double shaft extension) C-32303 (single shaft extension) C-53395 DY-1476 Snap Ring...
  • Page 24 8. Clean all pieces of grease and dirt before 3. Press bearing (5) into each end of shaft with an reassembly. approved pusher device. Apply pressure only to the inner race until bearings are flush against Reassembly shoulders of the shaft. 1.
  • Page 25 Typical Cross Section Drawing – AS-705 Figure 5-3 Model AS-705 Parts List Table 5-3 Item No. Description Part Number DY-216 Cap Screw, Lockwasher DY-187, DY-4771 Field Assembly C-63755-(See Master Bill) Housing D-63756-0100 Bearing DY-196 Shaft (double shaft extension) C-32284 (single shaft extension) C-34902 Retaining Ring DY-6297...
  • Page 26 Typical Cross Section Drawing – AS-706 Figure 5-4 Model AS-706 Parts List Table 5-4 Item No. Description Part Number DY-216 Cap Screw, Lockwasher DY-187, DY-4771 Field Assembly C-63755-(See Master Bill) Housing D-32317 Bearing DY-196 Shaft (double shaft extension) C-32316 (single shaft extension) C-36796 Retaining Ring DY-6297...
  • Page 27 Typical Cross Section Drawing – AS-707 Figure 5-5 Model AS-707 Parts List Table 5-5 Item No. Description Part Number DY-7755 Cover, Junction Box A-36607 Machine screw, Lockwasher DY-169, DY-15 Cap screw, Lockwasher DY-96, DY-106 End bell D-64058-0100 Field and housing assembly D-36621-(See Master Bill) Bearing DY-5001...
  • Page 28 AB-708 Disassembly Reassembly 1. If fans (10) were removed, install keys (11) into 1. Remove unit from operation and pull off shaft coupling hubs, or sheaves, with approved shaft; heat hub of fans and press them over the bearing puller and remove shaft key(s)(1). keys onto the shaft flush against shoulders of the shaft.
  • Page 29 Typical Cross Section Drawing – AS-708 Figure 5-6 Model AS-707 Parts List Table 5-6 Item No. Description Part Number DY-3778 Cover, Junction Box A-36607 Machine screw, Lockwasher DY-169, DY-15 Cap screw, Lockwasher DY-96, DY-106 End bell D-64058-0100 Field and housing assembly D-36628-(See Master Bill) Bearing DY-5001...
  • Page 30 Bearing Replacement Bearing Numbers Table 5-7 Model No. Part No. Description DY-12814 Ball bearing (1) shield DY-12814 Ball bearing (1) shield DY-196 Ball bearing (1) shield DY-196 Ball bearing (1) shield DY-5001 Ball bearing (1) shield DY-5001 Ball bearing (1) shield Recommended Bearing Manufacturers Table 5-8 Dynamatic...
  • Page 31 DRIVE SOURCE INTERNATIONAL INC. 7900 Durand Avenue, Bldg. 3 Sturtevant, WI USA 53177 Toll Free: (800) 548-2169 Phone: (262) 554-7977 - Fax: (262) 554- 7041 Email: sales@dynamatic.com...

This manual is also suitable for:

Dynamatic as-704Dynamatic as-705Dynamatic as-706Dynamatic as-707Dynamatic as-708

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