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Summary of Contents for DX Engineering DXE-RT4500HD
- Page 1 Heavy Duty Rotator DXE-RT4500HD DXE-RT4500HD-INS Revision 0 © DX Engineering 2022 1200 Southeast Ave. - Tallmadge, OH 44278 USA Phone: (800) 777-0703 - Tech Support and International: (330) 572-3200 Fax: (330) 572-3279 - E-mail: DXEngineering@DXEngineering.com...
- Page 2 Climbing or antenna mast repositioning is not immediately required. Install the DX Engineering RT4500HD Heavy-Duty Rotator in your tower to take advantage of these features and benefits: Superior Rotational Torque > 4,400 in. lbs. with high ratio worm gear drive powered by an extra heavy-duty 24VDC motor ...
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Page 3: General Information
General Information The DX Engineering rotator is designed to rotate large tower mounted amateur and professional antenna arrays under control from the station operating position. The internal motor is variable DC coupled to a series of hardened gears to provide the turning power. A magnetic pulse sensor sends the appropriate information to the rotator controller to indicate speed and positioning. -
Page 4: Important Safety Information
The installation of a rotatable antenna system on a tower is a dangerous and potentially life-threatening task if due care is not taken. DX Engineering shall not be held liable for any accident or injury involved in the installation or operation of the RT4500HD rotator. It is the responsibility of the customer to ensure the installation is completed by an experienced and reliable installation company complying with standard safety practices and using the best practices for working on or near a tower. - Page 5 Combinations Available DXE-RT21-DXE MOH-ARCO-115V DXE Combination DXE-RT4500HD DXE-RTMC-2 DXE-RTMC-3 Green Heron microHAM Part Numbers Rotator 2” Mast Clamp 3” Mast Clamp Controller Controller DXE-RT4500HD-2 DXE-RT4500HD-3 DXE-RT4500HD-2DX DXE-RT4500HD-3DX DXE-RT4500HD-2MH DXE-RT4500HD-3MH Included Parts List Part Number Description DXE-RT4500HD Rotator Patch Bolt , 5/16-18 (18-8) x 3/4” Stainless Steel...
- Page 6 DXE-AS455G – Tower Accessory Shelf for Rohn 45 and 55 tower ------------------------------------------------------------- Mast Clamp – Select One DXE-RTMC-2 – DX Engineering Rotator Top HD Mast Clamp for 2 in. OD mast DXE-RTMC-3 – DX Engineering Rotator Top HD Mast Clamp for 3 in. OD mast ------------------------------------------------------------- Thrust Bearing –...
- Page 7 Lightning Rod Kit – Select One DXE-LRMM-2-434 - Lightning Rod Kit, for Mast Top, Incl. Clamps for 2 in.OD Mast, Fasteners, 3/4 in. D. x 4 ft. L. Rod DXE-LRMM-2-458BS - Lightning Rod Kit, for Mast Top, Incl. Clamps for 2 in.OD Mast, Fasteners, 5/8 in. D. x 4 ft. L. Rod DXE-LRMM-2-458B - Lightning Rod Kit, for Mast Top, Incl.
- Page 8 Control Cable Information Included with the DX Engineering rotator is a control cable plug (DXE-LP20-F) that mates to the rotator cable pigtail (DXE-LP20-M). This plug may be used to assemble your own rotator control cable. DX Engineering also offers pre-made control cables with the connector installed in various lengths (see information above).
- Page 9 DXE-RT4500HD rotator is installed. If you are using a non-DX Engineering rotator shelf, ensure the rotator bolt pattern is correct (see Reference Information later in this manual) and there is an opening on the bottom to allow moisture drainage from the weep holes on the bottom of the DXE-RT4500HD.
- Page 10 The Rotator Mounting Shelf (DXE-AS455G) should be installed in the tower approximately 8-10 feet below the Thrust Bearing. Assemble and install the Rotator shelf per its instruction sheet. Ensure the Rotator Mounting shelf is properly mounted to the tower and not tilted. A small carpenter square can assist in making sure the shelf is mounted square to the tower.
- Page 11 Test for a full 360 degrees of rotation and make any adjustments that are necessary to the controller box. Mast Clamp The Mast Clamps have multiple holes for mounting to the rotator top plate. Place the Mast Clamp that will be used on the rotator top plate.
- Page 12 NOTE: If you are using a non-DX Engineering rotator shelf, ensure the rotator bolt pattern is correct (see Reference Information later in this manual) and there is an opening on the bottom to allow moisture drainage from the weep holes on the bottom of the DXE-RT4500HD.
- Page 13 Alignment of Mast to Rotator Carefully lower the 2 inch OD aluminum tube (temporary mast) to the top of the mast clamp. Carefully adjust the rotator shelf brackets as needed to center the tube with the mast clamp. Do not loosen the clamps too far or the rotator shelf may drop down.
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Page 14: Lightning Protection
DXE-LRMM-3-834 - Lightning Rod Kit, for Mast Top, Incl. Clamps for 3 in. OD Mast, Fasteners, 3/4 in. D. x 8 ft. L. Rod Maintenance The DX Engineering RT4500HD Rotator is a factory sealed and lubricated unit and does not require any additional lubrication. - Page 15 In the event that the magnetic pulse sensor is damaged from a nearby lightning strike it is easy to replace. Unlike other rotators, the DXE-RT4500HD does not have to be removed from the tower to replace the magnetic pulse sensor. You can order and keep on hand a spare magnetic pulse counter from DX Engineering.
- Page 16 1. On the side of the rotator body, you will notice an aluminum hatch or door. 2. Using a straight slot screwdriver, rotate the 1/4 turn screw counter-clockwise to open the door. 3. You can then carefully pull out the magnetic pulse sensor assembly until you see the green connector. 4.
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Page 17: Specifications
Total antenna wind area handling of the DX Engineering RT4500HD may be expected to be greater than 35-40 sq. ft. for very well-balanced antenna systems, while also using the appropriate torque calculations that account for total antenna system size and weight. - Page 18 Appendix - Reference Information Overall dimensions of Rotator Top Plate Dimensions Bottom Rotator Mounting Bolt Pattern - 17 -...
- Page 19 (Shielded rotor cable is not required with the DXE-RG4500HD) Calibration Procedure 1. Install antenna if not already installed. Since there are no hard limit switches in the DXE-RT4500HD, you can point the antenna at any known direction to complete the calibration. The rotator does not need to be in the center of Rotation.
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Page 20: Warranty
All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from date of shipment. DX Engineering’s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted; no allowance shall be made for any labor charges of Buyer for replacement of parts, adjustment or repairs, or any other work, unless such charges are authorized in advance by DX Engineering.
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