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barfield SC 063 User Instruction Manual

Sight compass
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SC 063 is designed to be used as
Ground Support Test Equipment.
Corporate Headquarters
4101 Northwest 29th Street
Miami, Florida 33142
www.barfieldinc.com
Email: gsesales@barfieldinc.com
www.avionteq.com
SC 063 SIGHT COMPASS
USER INSTRUCTION MANUAL
M/N: SC 063, P/N: 101-01200
Doc. P/N: 56-101-01200
_________________________________
BARFIELD, INC.
Not for aircraft installation.
Revision D
September 9, 2010

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  • Page 1 M/N: SC 063, P/N: 101-01200 Doc. P/N: 56-101-01200 Revision D September 9, 2010 _________________________________ BARFIELD, INC. SC 063 is designed to be used as Ground Support Test Equipment. Not for aircraft installation. Corporate Headquarters 4101 Northwest 29th Street Miami, Florida 33142 www.barfieldinc.com...
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  • Page 5 SC 063 INSTRUCTION MANUAL CONTACT INFORMATION Users are requested to notify the manufacturer of any discrepancy, omission, or error found in this manual. Inquiries should include specific questions and reference the publication title, number, chapter, page, figure, paragraph, and effective date.
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  • Page 7 Please be sure to complete and return the enclosed OWNER WARRANTY REGISTRATION CARD to Barfield in order to validate the warranty and to ensure that you will receive updated information when published. You MUST have your name and address on file at Barfield as a registered user of this equipment, to be able to obtain the service covered by the warranty.
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  • Page 9 SC 063 INSTRUCTION MANUAL REVISION RECORD REV. ECO # REV. DATE DESCRIPTION OF CHANGE January, 1983 Initial Release 260-00680 Oct. 5, 2006 Page number sequence was changed. List Approved Repair Facilities updated. 260-00702 Jul. 16, 2007 Description Section was modified to reflect current accessories package (short handle is no longer provided) Non-applicable sections were removed.
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  • Page 11 SC 063 INSTRUCTION MANUAL LIST OF APPROVED REPAIR FACILITIES The manufacturer of this equipment does not recommend the user to attempt any maintenance or repair. In case of malfunction, contact the manufacturer, to obtain the list of approved repair facilities worldwide, ensuring that this equipment will be serviced using proper procedures and certified instruments.
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  • Page 13: Table Of Contents

    SC 063 INSTRUCTION MANUAL TABLE OF CONTENTS Contact Information Attention Page Revision Record Page List of Approved Repair Facilities Table of Contents PAGE INTRODUCTION PUBLICATION BREAKDOWN ............... 1 INFORMATION PROVIDED WITH THE UNIT ..........1 RECERTIFICATION ..................3 DISCLAIMER ....................3 GENERAL INFORMATION DESCRIPTION ....................
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  • Page 15: Introduction

    INTRODUCTION 1. PUBLICATION BREAKDOWN This User Instruction Manual establishes the standards of operation for the SC 063 Sight Compass, P/N 101-01200. Its purpose is to provide sufficient information, for the personnel unfamiliar with this unit, to operate it in accordance with proper procedures, operating techniques, precautions and limitations.
  • Page 16 SC 063 INSTRUCTION MANUAL C. The Owner's Warranty Registration card (Figure 2), is to be completed by the owner and returned to Barfield, Inc. within ten (10) days of purchase to ensure automatic update of printed matter and validation of warranty.

  • Page 17: Recertification

    This certificate confirms that the unit performed according to its specifications. 3. RECERTIFICATION Barfield Sight Compass, Model SC 063, P/N 101-01200, has a one-year recertification requirement. Qualified technicians in a shop equipped with the necessary tooling, facilities, and Barfield-approved procedures must perform the maintenance required by this unit.
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  • Page 19: General Information

    SC 063 INSTRUCTION MANUAL GENERAL INFORMATION 1. DESCRIPTION The SC 063 Sight Compass (Figure 4) is a modified version of a standby type Aircraft Compass which has had its compensating assembly removed and a collimator sight attached. Modified features include: Reversed magnetic polarity, which permits the operator of the Sight Compass to view the aircraft being checked from the front.

  • Page 20: Dimensions And Weight

    SC 063 INSTRUCTION MANUAL 2. DIMENSIONS AND WEIGHT A. Length: 2.75 in. (7 cm) B. Width: 2.36 in. (6 cm) C. Height: 3.34 in. (8.5 cm) D. Weight: 0.72 lbs. (0.325 Kg) 3. CAPABILITIES The Sight Compass is a small, readily portable, convenient instrument which can be used to: Determine the magnetic suitability of a Compass swinging area.

  • Page 21: Background Information

    SC 063 INSTRUCTION MANUAL 5. BACKGROUND INFORMATION A. A compass swing must be performed whenever any ferrous component of the system (i.e. flux valve compensator, or Standby Compass) is installed, removed, repaired or a new compass is installed. Additionally a compass swing must be performed on the...
  • Page 22 SC 063 INSTRUCTION MANUAL (1) Hard Iron: This term is given to those parts of the Aircraft, which may be regarded as permanent magnets; that is, parts in which the magnetism tends to remain the same. The effect of hard iron can be determined with fair accuracy during a Compass swing.

  • Page 23: Operation

    Sight Compass. 1. ESTABLISHING A PERMANENT REFERENCE POINT When the SC 063 Sight Compass is first received, it is suggested that a permanent reference check point be established. If, at any time, there is reason to suspect the readings obtained during Aircraft Compass testing, the Sight Compass can be rechecked using this (these) reference point(s).

  • Page 24: Testing Site Suitability

    In general an area can be checked for Compass swinging suitability by taking bearings with the SC 063 from random positions within the area in question on an object at least a mile distant. If all bearings are the same, the area is suitable for use.

  • Page 25: Determination Of The Magnetic Heading Of An Aircraft

    C. The Sight Compass should be supported and held at a comfortable reading distance from the eye. A monopod is supplied with the SC 063 Sight Compass to aid in steadying the Compass. Again the observer must take care to remove all magnetic material from his person prior to using the Sight Compass.

  • Page 26: Compass Compensation Procedure

    SC 063 INSTRUCTION MANUAL H. Insofar as possible, all fixed or movable items containing ferrous materials should be placed in positions they will occupy in flight before beginning the swing. The Compass should be inspected for general serviceability. An Aircraft Compass is easily affected by stray magnetism from electrical circuits and moveable steel objects.

  • Page 27: Compass Swinging Procedure

    SC 063 INSTRUCTION MANUAL Align the Aircraft as nearly as possible (not to exceed 5 degrees error) to magnetic South (180°). G. Turn the N-S screw to remove one-half of the error between the Aircraft Compass and the Sight Compass.
  • Page 28 SC 063 INSTRUCTION MANUAL Table 1 AN EXAMPLE OF A COMPLETED COMPASS CORRECTION WORKSHEET (Column 2) (Column 3) (Column 4) (Column 5) (Column 1) AIRCRAFT SIGHT AIRCRAFT CORRECTED DESIRED COMPASS COMPASS COMPASS AIRCRAFT HEADING READING READING ERROR COMPASS 56-101-01200, Rev. D OPER.
  • Page 29 SC 063 INSTRUCTION MANUAL Table 2 COMPASS CORRECTION WORKSHEET (Column 2) (Column 3) (Column 4) (Column 5) (Column 1) AIRCRAFT SIGHT AIRCRAFT CORRECTED DESIRED COMPASS COMPASS COMPASS AIRCRAFT HEADING READING READING ERROR COMPASS 56-101-01200, Rev. D OPER. September / 9 / 2010...
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  • Page 31: Care Of The Sight Compass

    SC 063 INSTRUCTION MANUAL CARE OF THE SIGHT COMPASS There are no field maintenance procedures for the SC 063 Sight Compass, only care in handling and storage are required. 1. HANDLING Care should be taken to keep the Sight Compass clean and moisture free. If needed, the front and rear lens should be cleaned using a mild detergent, followed by a clean water rinse, and dried using a soft cloth or facial tissue.
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  • Page 33: Receiving And Shipping

    SC 063 INSTRUCTION MANUAL RECEIVING AND SHIPPING 1. RECEIVING No special unpacking procedures are necessary. It is recommended that the factory shipping container and packing materials be retained, for those occasions when the Sight Compass needs to be re-shipped, such as for the annual recertification.
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