Field Installation of Adjustable SC PAPI Baffle Kit
Contents
1. 4 IF the obstacle is on the LEFT side of the approach area then install the baffle over the filter slot on the RIGHT side See Figure 1 3 OR IF the obstacle is on the RIGHT side of the approach area then install the baffle over the filter slot on the LEFT side See Figure 1 4 gt Cc a ab ex D T gt 2 Figure 1 3 Baffle Located on Right Side of Enclosure Filter Bracket for Obstacle Located on Left Side MOUNTING PLATE FOR BAFFLE 60C1672 32 SCREWS FROM KIT 94A0570 XX AA ASSEMBLY NOTE 1 BAFFLE PLATE 60B1673 X AND 8 32 SCREWS FROM KIT 94A0570 XX PACKAGE WITH SERVICE BULLETIN AND SECURE Nee BOX NOTE 1 el A e ayy YA fe A fe D q r F D 3 0 J Uy La o 7 so e YY ALN152 Rev C 1 March 2012 1 4 Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 28 July 2010 Field Installation of Adjustable PAPI Baffles Modification Procedure Figure 1 4 Baffle Located on Left Side of Enclosure Filter Bracket for Obstacle Located on the Right Side BAFFLE PLATE 60B1673 X AND 8 32. Light Box 2 2 Box PAPI System 4 4 Box PAPI System gt Cc a ab ex D T gt 2 1 5 Baffle Kit Parts List for 2 4 Box PAPI Refer to Table 1 3 for the Baffle Kit parts list Table 1 3 Baffle Kit 94A0570 XXX Parts per Unit Part Number One Obstruction Two Obstructions Baffle Mounting Plate 6001672 1 1 Baffle 0 0 3 3 60B1673 1 Baffle 3 1 6 4 60B1673 2 1 2 Baffle 6 3 10 60B1673 3 Pan head screws 6 64A0198 12 2 4 32 x 0 75 long Lockwasher Split 6 66A0026 11 2 4 Hex Nut 6 32 65A0015 11 2 4 Pan head screws 8 32 x 0 38 long 64A0966 06 2 4 ALN152 Rev C 1 March 2012 1 2 Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 28 July 2010 Field Installation of Adjustable PAPI Baffles Modification Procedure 1 6 Modification Procedure Note One baffle is required for EACH PAPI Light Box Each set of baffles are to be the same cut off range More than one baffle type cut off range can be ordered depending upon the application Contact ADB Airfield Solutions if you are not sure about the cut offs required for your particular application Note The estimated time required is 60 minutes per PAPI Light Box Note WARNING Only personnel authorized to work on high voltage equipment should make the modifications described in this service bulletin Note WARNING Disconnect equipment from line voltage Failure to observe this
3. Edge of Baffle Mounting Plate Baffle Screws 9 Energize the lamp in the PAPI unit and verify that the light beam cannot be seen by the individual stationed at the obstacle If the light beam is visible repeat Step 8 10 Disconnect power from the PAPI unit remove the jumper from tilt switch 1 if installed and reinstall the red filter The red filter s ground edge must be installed facing down If the filter is dirty use a soft cotton cloth moistened with alcohol to clean the filter After the filter has been reinstalled recheck the cutoff to make sure it is correct for each PAPI Light Box Ifthe settings are correct remove ONE SCREW AT A TIME AND PLACE A DROP OF LOCTITE 242 or equal thread locking compound on the threads Retighten the screws Repeat this process for each screw used to secure the baffle Repeat Steps 1 through 13 for the remaining PAPI units in the system The individual observing the horizontal cutoff for the PAPI units should remain at the same position for all observations 12 If the PAPI units were lowered in elevation the units will require realignment and the tilt switches will need to be leveled Consult the subsection Aligning Units in the Installation sections of instruction manual 96A0379 for instructions to align the PAPI and level the tilt switches Before putting the PAPI system into service a flight check of the PAPI system is required to determine if a
4. PAPI Precision Approach Path Indicator 96A0379 Type L 880 amp L 881 Style A Voltage Powered amp B Current Powered a lt oa Oo o Es 7 2 lt 1 3 Special Tools and Equipment Required Refer to Table 2 for the special tools and equipment This equipment is not supplied Table 1 2 Table 2 Required Equipment Not Supplied Description Quantity Walkie talkies or other form of communication 2 Small Phillips screwdriver 1 Combination square or machinist s square 1 Instruction manual for PAPI part number 96A0379 1 1 4 Items Included in PAPI Baffle Retrofit Kits This subsection provides the PAPI Baffle Retrofit Kit ordering code and a parts list for 2 box and 4 box baffle kits ALN152 Rev C 1 March 2012 Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 1 1 28 July 2010 Field Installation of Adjustable PAPI Baffles Baffle Kit Parts List for 2 4 Box PAPI 1 4 1 PAPI Baffle Retrofit Kit Ordering Code See Figure 1 1 to determine the part number for a particular PAPI Baffle Retrofit Kit Figure 1 1 PAPI Baffle Retrofit Kit Part Ordering Code 94A0570 X X X Cutoff Sec Obs 0 No Secondary Obs 1 Cut Off 0 0 to 3 3 Degrees 2 Cut Off 3 1 to 6 4 Degrees 3 Cut Off 6 3 to 10 0 Degrees Cutoff Pri Obs 1 Cut Off 0 0 to 3 3 Degrees 2 Cut Off 3 1 to 6 4 Degrees 3 Cut Off 6 3 to 10 0 Degrees
5. the filter Enclosure Filter Bracket See Figure 1 6 Figure 1 6 Squaring Top Edge of Baffle Mounting Plate Baffle Mounting Plate Screws gt Cc a ab ex D T gt 2 6 Using the 10 32 x 0 38 large screws and hex nuts supplied with the baffle install baffle as required for the application Two 10 32 tapped holes are located in the Baffle Mounting Plate Note Until the cutoff has been confirmed the two screws should only be finger tight 7 Apply power to the lamp Note It may be necessary to lower the PAPI unit in elevation for the individual to see the light beam See manual 96A0379 for any required alignment adjustment 8 Position someone equipped with a walkie talkie at the edge of the obstacle or as far out from the edge the beam where cutoff is desired Move the baffle along the aperture of the baffle mounting plate until the light beam cut off is seen by the individual who is standing in front of the obstacle Use a combination square to make sure the machined edge on the baffle is perpendicular to the top edge of the Baffle Mounting Plate Tighten the two screws on the baffle See Figure 1 7 ALN152 Rev C 1 March 2012 1 6 Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 28 July 2010 ALN152 Rev C 1 March 2012 Field Installation of Adjustable PAPI Baffles Modification Procedure Figure 1 7 Squaring Baffle Plate with Top
6. warning may result in personal injury death or equipment damage Note Coordinate a power outage for the PAPI system with Air Traffic personnel To modify the horizontal light beam coverage of the PAPI unit perform the following procedure a lt oa Oo o 3 7 2 lt 1 De energize the PAPI system Depending on the location of the obstruction in the approach area right or left side attach the baffle mounting plate on the back side of the enclosure filter bracket Figure 1 2 Single Channel PAPI Box Assembly 1 8 X 1 2 X 30 CUT LENGTH ENCLOSURE BACIERLATE RM0212 1 ROLEZ SS LATCH y 6000 U635 PC ENCLOSURE FILTER BRACKET 60A3395 ENCLOSURE REAR LENS BRACKET 1 8 X 1 2 X 8 625 CUT LENGTH RM0212 2 ENCLOSURE FRONT LENS BRACKET N SINGLE CHANNEL PAPI BOTTOM PLATE ALN152 Rev C 1 March 2012 Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 1 3 28 July 2010 Field Installation of Adjustable PAPI Baffles Modification Procedure Note The baffle mounting plate is mounted on either the left or right side of the enclosure filter bracket by flipping the plate over 2 Fasten the Baffle Mounting Plate to the enclosure filter bracket by using the 6 32 x 0 75 long pan head screws hex nuts and split lock washers provided 3 Insert the 6 screws through the plate and the mating slots in the enclosure filter bracket located at the end of the filter slot
7. 2 SCREWS FROM KIT 9440570 XX PACKAGE WITH SERVICE BULLETIN AND SECURE INSIDE BOX NOTE 1 MOUNTING PLATE FOR BAFFLE 60C1672 AND 6 32 SCREWS FROM KIT 94A0570 XX INSTALLAT ASSEMBLY NOTE 1 p OTTO A O SE ELIO Note If both sides are obstructed complete one side at a time Figure 1 5 PAPI Signal Viewing Zone Obstacle Located in the RIGHT SIDE of the Approach Area mt a A 10 Degree Zone either side of R W Centerline from where the PAPI signal can be observed Runway Centerline m 4 Mile Radius Obstacle Clearance Zone a a PAPI Units 2 or 4 Boxes x Obstacle Located in theLEFT SIDE of the Approach Area ALN152 Rev C 1 March 2012 Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 1 5 28 July 2010 a lt A Oo o 3 7 2 lt Field Installation of Adjustable PAPI Baffles Modification Procedure 5 Take a combination square or machinists square of appropriate length and square the Baffle Mounting Plate with the top edge of
8. ADB Airfield Solutions Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin Document Number ALN152 03 Sep 2011 Rev C 1 March 2012 ADB Airfield Solutions P O Box 30829 Tel 614 861 1304 977 Gahanna Parkway Fax 614 864 2069 Columbus OH 43230 Copyright 2011 ADB Airfield Solutions All rights reserved 1 0 Field Installation of Adjustable PAPI Baffles oooooooooooooooooooooo 1 1 Vee ATO CUCTION it A A chose ache se Blea AA IA A dt 1 1 112 References tn E E o bs Pa IEE A Bite BR SONS hes a A A A 1 1 1 3 Special Tools and Equipment Required oooocccoccocco eee 1 1 1 4 Items Included in PAPI Baffle Retrofit KitS o o o ooooooooooooooor ee eee eens 1 1 1 4 1 PAPI Baffle Retrofit Kit Ordering Code 0 00 ccc tees 1 2 1 5 Baffle Kit Parts List for 2 4 Box PAP 1 2 1 6 Modification Proceduren an aaa a nse a etc goede dad ae Kai 1 3 Field Installation of Adjustable PAPI Baffles Introduction 1 0 Field Installation of Adjustable PAPI Baffles 1 1 Introduction This service bulletin provides instructions for modifying the horizontal light beam coverage of the PAPI unit for obstacle avoidance in the approach area for the ADB Airfield Solutions 1 lamp Single Channel PAPI 1 2 References Refer to Table 1 for references Table 1 1 References Reference Description ADB Airfield Solutions s Part Number USER MANUAL Single Channel
9. ll horizontal cutoffs of the PAPI beams are properly located relative to the obstacle s 13 After the cut off angle has been verified remove jumpers from the Tilt Switch by reversing the procedure as outlined in Step 8 In addition see instruction manual 96A0379 to verify that the Tilt Switch is wired correctly BEFORE PLACING PAPI IN SERVICE Note CAUTION These adjustable baffles have been designed to be used in ADB Airfield Solutions PAPI light boxes to alter the horizontal cut off angle avoidance of obstacles The customer is responsible for the proper installation and verification that the horizontal cutoff produced by the baffles meets the requirements set by the FAA for obstacle avoidance Therefore ADB Airfield Solutions asserts that it be held harmless for the end use of the ADB Airfield Solutions PAPI in this special baffle application Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 1 7 28 July 2010 a lt A Oo o 3 7 2 lt Field Installation of Adjustable PAPI Baffles Modification Procedure gt 2 Cc A pad ex D gt v ALN152 Rev C 1 March 2012 1 8 Field Installation of Adjustable Single Channel PAPI Baffle Kit Service Bulletin 28 July 2010
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