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Smiths BOEING B737-100 Maintenance Manual Supplement

Digital fuel quantity indicators with transient suppression unit
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Smiths Aerospace
Electronic Systems – Malvern
DOC NO. 0134ED
Rev: F
DIGITAL FUEL QUANTITY INDICATORS
With
TRANSIENT SUPPRESSION UNIT
MAINTENANCE MANUAL
SUPPLEMENT
BOEING B737-100/200/300/400/500
Dec. 18, 2002

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  • Page 1 Smiths Aerospace Electronic Systems – Malvern DOC NO. 0134ED Rev: F DIGITAL FUEL QUANTITY INDICATORS With TRANSIENT SUPPRESSION UNIT MAINTENANCE MANUAL SUPPLEMENT BOEING B737-100/200/300/400/500 Dec. 18, 2002...
  • Page 2 CHAPTER 28 – FUEL INTRODUCTION Smiths Aerospace, Inc. designed the Transient Suppression Unit (TSU) to produce an alternate means of compliance to Airworthiness Directive (AD) 99-03-04 which mandates that operators of Boeing B737 aircraft perform wire separation modification to fuel system wiring. The alternate means of compliance is achieved by the installation of Smiths Aerospace, Inc.
  • Page 3 Smiths Aerospace Electronic Systems – Malvern DOC NO. 0134ED REV: F BOEING B737-100/200/300/400/500 MAINTENANCE MANUAL SUPPLEMENT CHAPTER 28 – FUEL LIST OF EFFECTIVE PAGES CHAPTER SECTION E.O. NUMBER SUBJECT PAGE DATE 0132-ED INTRO July 15/02 0132-ED Dec 18/02 0132-ED Dec 18/02...
  • Page 4 Smiths Aerospace Electronic Systems – Malvern DOC NO. 0134ED REV: F BOEING B737-100/200/300/400/500 CHAPTER SECTION E.O. NUMBER SUBJECT PAGE DATE 0132-ED 28-41-04 Apr 19/02 0132-ED 28-41-04 Apr 19/02 0132-ED 28-41-04 Apr 19/02 0132-ED 28-41-04 Apr 19/02 0132-ED 28-41-04 Apr 19/02...
  • Page 5 Smiths Aerospace Electronic Systems – Malvern DOC NO. 0134ED REV: F BOEING B737-100/200/300/400/500 CHAPTER SECTION E.O. NUMBER SUBJECT PAGE DATE 0132-ED 28-41-04 524 /4.1 Apr 19/02 0132-ED 28-41-04 525 /4.1 Apr 19/02 0132-ED 28-41-04 501 /4.2 July 15/02 0132-ED 28-41-04 502 /4.2...
  • Page 6 Smiths Aerospace Electronic Systems – Malvern DOC NO. 0134ED REV: F BOEING B737-100/200/300/400/500 CHAPTER SECTION E.O. NUMBER SUBJECT PAGE DATE 0132-ED 28-41-04 521 /4.3 Apr 19/02 0132-ED 28-41-04 522 /4.3 Apr 19/02 0132-ED 28-41-04 523 /4.3 Apr 19/02 N=NEW PAGE, *=REVISED PAGE, D=DELETED PAGE REPRODUCTION OF INFORMATION OR ILLUSTRATIONS CONTAINED IN THE PUBLICATION IS NOT PERMITTED WITHOUT WRITTEN PERMISSION.
  • Page 7 Smiths Aerospace Electronic Systems – Malvern DOC NO. 0134ED BOEING B737-100/200/300/400/500 MAINTENANCE MANUAL SUPPLEMENT CHAPTER 28 – FUEL TABLE OF CONTENTS CHAPTER SECTION SUBJECT UNIT PAGE EFFECTIVITY Fuel Quantity Indicating System with 28-41-04 Transient Suppression Unit Description and Operation Trouble Shooting...
  • Page 8 The protective circuit of the suppression circuit and the Hi-Z shield are grounded to the aircraft structure via grounding straps and the attaching hardware at its physical location. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 1 Apr 19/02...
  • Page 9 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 1 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 2 Apr 19/02...
  • Page 10 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 1 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 3 Apr 19/02...
  • Page 11 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 2 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 4 Apr 19/02...
  • Page 12 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 3 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 5 Apr 19/02...
  • Page 13 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 3 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 6 Apr 19/02...
  • Page 14 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Measuring Stick Extended Position (Example) Figure 4 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 7 Apr 19/02...
  • Page 15 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 5 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 8 Apr 19/02...
  • Page 16 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Schematic Figure 6 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 9 Apr 19/02...
  • Page 17 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Schematic Figure 6 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 10 Apr 19/02...
  • Page 18 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Schematic Figure 6 (Sheet 3) 2. Tank Unit (Fig. 3) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 11 Apr 19/02...
  • Page 19 Access to the compensator units is through the fuel tank access openings. Leads from the compensator units are contained in the same harness used for the tank units. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 12 Apr 19/02...
  • Page 20 The fuel quantity indicator will complete self-test cycle and show the word CLr. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 13 Apr 19/02...
  • Page 21 STBY and key No. 6 is depressed (Ref. Ch. 34). The FMCS also provides a display of total fuel remaining (Ref 34-62- 00/001). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 14 Dec 18/02...
  • Page 22 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 15 Dec 18/02...
  • Page 23 D. The microcomputer monitors the fuel quantity Indicating system and supplies an error indication and code to help in troubleshooting. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 16 Dec 18/02...
  • Page 24 (3) If an intermittent fault disappears for at least 30 seconds the ERR legend is blanked, but the fault code remains logged in indicator memory. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 101 April 19/02...
  • Page 25 5 gallons (19 liters) be drained from each tank for each 24 hours. (For example, this is a good procedure if the weather is very hot and humid). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 102 April 19/02...
  • Page 26 (9) Fuel goes through the wire harness for the tank units to the face of spar receptacle which can cause changes in the system capacitance. (10) Loose connections in the connectors from the indicators to the tanks. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 103 April 19/02...
  • Page 27 1) MCDU No. 1 2) FMCS CMPTR No. 1 (c) P6-1 panel 1) MCDU No. 2 2) FMCS CMPTR No. 2 3) FMCS XFER EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 104 April 19/02...
  • Page 28 THE FUEL QUANTITY INDICATOR SHOWS ERROR CODE 6 NOT OK DURING THE SELF-TEST – FIG. 107 Troubleshooting for the Fuel Quantity Indicating System Figure 101 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 105 July 15/02...
  • Page 29 SHEET 3 – VREF TOTALIZER SHEET 4 – FMCS SHEET 5 – PDCS Troubleshooting for the Fuel Quantity Indicating System Figure 101 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 106 April 19/02...
  • Page 30 CONTINUE ON SHEET 6 FOR 2101 REFUEL INDICATOR SHEET 7 FOR 2120 REFUEL INDICATOR Troubleshooting for the Fuel Quantity Indicating System - WITH VREF TOTALIZER Figure 101 (Sheet 3) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 107 Dec 18/02...
  • Page 31 CONTINUE ON SHEET 6 FOR 2101 REFUEL INDICATOR SHEET 7 FOR 2120 REFUEL INDICATOR Troubleshooting for the Fuel Quantity Indicating System - WITH FMCS Figure 101 (Sheet 4) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 108 Dec 18/02...
  • Page 32 CONTINUE ON SHEET 6 FOR 2101 REFUEL INDICATOR SHEET 7 FOR 2120 REFUEL INDICATOR Troubleshooting for the Fuel Quantity Indicating System - WITH PDCS Figure 101 (Sheet 5) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 109 Dec 18/02...
  • Page 33 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Troubleshooting for the Fuel Quantity Indicating System (2101 Refuel Indicator) Figure 101 (Sheet 6) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 110 Dec 18/02...
  • Page 34 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Troubleshooting for the Fuel Quantity Indicating System (2120 Refuel Indicator) Figure 101 (Sheet 7) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 110A Dec 18/02...
  • Page 35 >500 megohm <500 megohm Repair fault to ground in A/C harness (WDM 28-41-01) Err 1: Comp Lo-Z Line Open or Short Figure 102 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 111 April 19/02...
  • Page 36 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 112 April 19/02...
  • Page 37 >500 megohm Repair fault to ground in tank harness (WDM 28-41-01) Err 1: Comp Lo-Z Line Open or Short (continued) Figure 102 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 113 April 19/02...
  • Page 38 (AMM 28-41-04/401) and/or Compensator (AMM 28-41-44/401) (AMM 28-41-21/401) Operational Test (AMM 28-41-04/501) Err 1: Comp Lo-Z Line Open or Short (continued) Figure 102 (Sheet 3) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 114 April 19/02...
  • Page 39 Repair/Replace Tank Harness (AMM 28-41-04/401) and/or Compensator (AMM 28-41-44/401) (AMM 28-41-21/401) Operational Test (AMM 28-41-04/501) Err 2: Comp Lo-Z Line Short to Hi-Z Figure 103 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 115 April 19/02...
  • Page 40 <500 megohm Repair/Replace tank harness Replace TSU and/or compensator (AMM 28-41-04/401) (AMM 28-41-44/401) (AMM 28-41-21/401) Operational Test (AMM 28-41-04/501) Err 3: Compensator Leakage Figure 104 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 116 April 19/02...
  • Page 41 >5 ohm Repair open Tank Lo-Z line in A/C harness (WDM 28-41-01) Err 4: Tank Lo-Z Line Open or Short Figure 105 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 117 April 19/02...
  • Page 42 Repair/Replace tank harness or compensator/harness (AMM 28-41-04/501) (AMM 28-41-44/401) (AMM 28-41-21/401) (AMM 28-41-44/401) Err 4: Tank Lo-Z Line Open or Short (continued) Figure 105 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 118 April 19/02...
  • Page 43 Repair/Replace applicable tank Repair/Replace Harness Operational Test unit/harness (AMM 28-41-44/401) (AMM 28-41-04/501) (AMM 28-41-81/401) Err 5: Tank Lo-Z Line Short to Hi-Z Figure 106 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 119 April 19/02...
  • Page 44 >50 megohm <50megohm Repair/Replace applicable tank Repair/Replace harness Operational Test unit/harness (AMM 28-41-44/401) (AMM 28-41-04/501) (AMM 28-41-81/401) Err 6: Tank Unit Leakage Figure 107 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 120 April 19/02...
  • Page 45 < 5 ohm >5 ohm Repair/Replace open Tank Lo-Z line in A/C harness (AMM 28-41-44/401) Err 10: Hi-Z Line Open or Short Figure 108 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 121 April 19/02...
  • Page 46 Repair/Replace tank harness Replace TSU (AMM 28-41-44/401) (AMM 28-41-04/401) Operational Test (AMM 28-41-04/501) Err 10: Hi-Z Line Open or Short (continued) Figure 108 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 122 April 19/02...
  • Page 47 (AMM 28-41-04/401) > 8 miliohms < 8 miliohms Replace TSU Repair (AMM 28-41-04/401) (AMM 28-41-04/401) Operational Test (AMM 28-41-04/501) Excessive Fluctuations Figure 109 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 123 April 19/02...
  • Page 48 Determine cause of signal not being present and repair. Replace total fuel quantity/VREF indicator and check operation (REF 28-41-04/401). VREF Totalizer Inoperative Figure 110 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 124 April 19/02...
  • Page 49 IF - indicator as necessary. (AMM 28-41-04/401) Reset master gauges Replace master indicator. (REF. 28-41-04/501) (AMM 28-41-04/401) VREF Totalizer Total Fuel Quantity Error Figure 111 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 125 April 19/02...
  • Page 50 Pins 13 and and correct. 14 is correct per wiring diagram. Correct wiring problems. VREF Totalizer Flap or Landing Speed Error Figure 112 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 126 April 19/02...
  • Page 51 (AMM 34-28-41/401). IF- NOT OK – Replace the Fuel Summation OK – The system is OK. Unit (AMM 28-41-81/401). FMCS Total Fuel Error Figure 113 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 127 April 19/02...
  • Page 52 IF- NOT OK – Replace the fueling power control relay, R11, on the E3 electrical shelf. Refuel Indicators Inoperable Figure 114 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 128 April 19/02...
  • Page 53 IF - OK – The system is OK. NOT OK – Replace the Fuel Summation Unit (AMM 28-41-81/401) PDCS Total Fuel Error Figure 115 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 129 April 19/02...
  • Page 54 (1) Connect the DCTU to the rear of the indicator. (2) Put the indicator and the DCTU into the panel. (3) Tighten the clamp screw on the indicator. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 401 Apr 19/02...
  • Page 55 (l) Make sure the indicators for the No. 1 tank and the center tank show the fuel quantities that you wrote down before. (m) Connect the connector D888 again. (n) Clear any error codes stored per AMM 28-41-04/501. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 402 Apr 19/02...
  • Page 56 (2) Install the indicator in the panel. (3) Tighten the clamp screw on the indicator. (4) Close the access door for the refuel control panel (P15). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 403 Apr 19/02...
  • Page 57 2) EP GND FUELING (6) Push the test switch (PUSH-TO-TEST) on the refuel control panel (p15). (a) Make sure all of the refuel quantity indicators operate correctly. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 404 Apr 19/02...
  • Page 58 (7) Keep the fuel quantity indicator for the subsequent installation. (8) At the rear of the DCTU, disconnect the electrical connector that goes to the airplane wire bundle. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 405 Apr 19/02...
  • Page 59 (5) After you enter the parameter, P11, push the two buttons at the same time. (a) Release the two buttons at 'the same time. (b) The indicator shows the word CAL. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 406 Apr 19/02...
  • Page 60 (4) Install the indicator and the DCTU in the panel. (5) Tighten the clamp screw. (6) Push the test switch for the indicators to make sure the indicator operates. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 407 Apr 19/02...
  • Page 61 (a) Retain the data as listed on the DCTU label and save for installation on new DCTU cover. (b) Remove the DCTU cover from the airplane wire bundle and discard EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 408 Apr 19/02...
  • Page 62 (5) After you enter the parameter, P11, push the two buttons at the same time. (a) Release the two buttons at 'the same time. (c) The indicator shows the word CAL. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 409 Apr 19/02...
  • Page 63 (4) Install the indicator and the DCTU in the panel. (5) Tighten the clamp screw. (6) Push the test switch for the indicators to make sure the indicator operates. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 410 Apr 19/02...
  • Page 64 (a) P6 Main Power Distribution Panel 1) EP GND FUELING 2) FUEL QTY (5) Push the test switch on the indicator to make sure the indicator operates. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 411 Apr 19/02...
  • Page 65 (5) Put a cap on the connector and stow it (6) Remove the DO-NOT-REMOVE tags and close these circuit breakers: (a) On the P6 panel 1) FUEL QTY 2) EP GRD FUELING. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 412 Apr 19/02...
  • Page 66 (6) Remove the DO-NOT-REMOVE tags and close these circuit breakers: (a) On the P6 panel: 1) FUEL QTY 2) EP GRD FUELING (7) Perform operational test: “Fuel Summation Unit” (Ref 28-41-82/501). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 413 Apr 19/02...
  • Page 67 MM 27-81-00 MP. WARNING: REFER TO 32-00-01 MP FOR GROUND LOCK INSTALLATION PROCEDURES. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR MAY INJURE PERSONNEL OR DAMAGE EQUIPMENT. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 414 Apr 19/02...
  • Page 68 “FUEL QTY INDI-CTR AND AUX TANK. 6. Operational Check A. Perform Operational Check per 28-41-04, page 501 and adjust fuel quantity indication system as required. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators with TSU Page 415 Apr 19/02...
  • Page 69 2. Operational Test – Fuel Quantity Indication System A. Access (1) Location Zones Control Cabin, Left Right Wing Outboard Leading Edge EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 501 (GULL SYSTEM TESTER) July 15/02...
  • Page 70 1-2 seconds, then show all segments for 2 seconds – type 2101 refuel indicator only), and then the values that you wrote before this step with a tolerance of ±20 pounds (±20 kilograms). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 502 (GULL SYSTEM TESTER)
  • Page 71 (4) AMM 28-41-81/401, Fuel Summation Unit C. Access (1) Location Zones Control Cabin, Left Right Main Wheel Well Left Wing Inboard Leading Edge EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 503 (GULL SYSTEM TESTER) Dec 18/02...
  • Page 72 (9) Do this task: Fuel summation Unit removal or V-REF/Totalizer removal as applicable (AMM 28- 41-04/401). (10) Do this task: Fueling indicator removal (AMM 28-41-04/401). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 504 (GULL SYSTEM TESTER)
  • Page 73 1 megohm Pin 3 of receptacle Shield of pin 1 1 megohm Shield of pin 1 Airplane ground 10 megohm EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 505 (GULL SYSTEM TESTER) July 15/02...
  • Page 74 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 506 (GULL SYSTEM TESTER) April 19/02...
  • Page 75 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 507 (GULL SYSTEM TESTER) April 19/02...
  • Page 76 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 508 (GULL SYSTEM TESTER) April 19/02...
  • Page 77 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 3) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 509 (GULL SYSTEM TESTER) April 19/02...
  • Page 78 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 4) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 510 (GULL SYSTEM TESTER) April 19/02...
  • Page 79 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 5) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 511 (GULL SYSTEM TESTER) April 19/02...
  • Page 80 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 6) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 512 (GULL SYSTEM TESTER) April 19/02...
  • Page 81 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 513 (GULL SYSTEM TESTER) April 19/02...
  • Page 82 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 514 (GULL SYSTEM TESTER) April 19/02...
  • Page 83 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Capacitance Measurement Figure 503 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 515 (GULL SYSTEM TESTER) April 19/02...
  • Page 84 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Capacitance Measurement Figure 503 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 516 (GULL SYSTEM TESTER) April 19/02...
  • Page 85 (b) Set the CAPACITANCE FUNCTION switch to A/C (c) Measure the capacitance of the tank units. 1) The capacitance must have these values with the applicable tolerance: EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 517 (GULL SYSTEM TESTER)
  • Page 86 (g) At P6 Main Power Distribution Panel, close these circuit breakers and remove DO-NOT- CLOSE tags: 1) FUEL QTY 2) EP GND FUELING EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 518 (GULL SYSTEM TESTER) Dec 18/02...
  • Page 87 7. Depress both “UP” and “DOWN” select buttons simultaneously. The indicator will display “P02” for one second and two analog segments will illuminate. After displaying “P02”, the display will change to show the last entered value. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 519 (GULL SYSTEM TESTER)
  • Page 88 19. Depress both “UP” and “DOWN” select buttons simultaneously. The indicator will display “P08” for one second and eight analog segments will illuminate. After displaying “P08”, the display will change to show the last entered value. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 520 (GULL SYSTEM TESTER)
  • Page 89 23 by using the select buttons as required. NOTE: Round the nominal wet tank capacitance to the resolution allowed by the gauge entry. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 521...
  • Page 90 BUTTONS MUST BE PRESSED SIMULTANEOUSLY. WATCH DISPLAY WHILE PRESSING BUTTONS TO VERIFY THAT THE PARAMETER HAS NOT CHANGED BEFORE THE NEXT PARAMETER APPEARS. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 522 (GULL SYSTEM TESTER)
  • Page 91 21. Place “CAL-RUN” jumper in “RUN” mode for Center Tank. 22. Close “FUEL QTY” circuit breaker. Verify the indicator displays full fuel quantity within 1%. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 523...
  • Page 92 ±30 KG 27. Close P15, Refuel Control Panel. 28. Repeat steps 4.C.2 through 4.C.27 for all other tanks to be calibrated. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 524 (GULL SYSTEM TESTER)
  • Page 93 Step 4.C.3 X _______________ Fuel Volume (U. S. Gal or Liters) Step 4.C.10 = _______________ Fuel Weight, P4 (Lbs or Kg) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 525 (GULL SYSTEM TESTER) April 19/02...
  • Page 94 C. Retract the leading edge flaps (Ref 27-81-00/201). D. Remove the electrical power, if it is not necessary for other tasks (Ref 24-22-00/201). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.1 with TSU Page 526 (GULL SYSTEM TESTER)
  • Page 95 (1) Location Zones Control Cabin, Left Right Wing Outboard Leading Edge (2) Access Panels 6540 Refueling Station Access Door EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 501 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 96 (11) Close the access door, 6540, for the refuel control panel (P15). (12) Perform comparison check of Fuel Quantity Indicating System (FQIS) using fuel measuring sticks. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 502 (SIMMONDS SYSTEM TESTER)
  • Page 97 02) to connect to the tee connector, two are necessary. NOTE: Unshielded cables on Lo-Z connections can cause EMI problems. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 503 (SIMMONDS SYSTEM TESTER) Dec 18/02...
  • Page 98 NOTE: If you do an adjustment of only one tank system, you can move the fuel into the other tanks. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 504 (SIMMONDS SYSTEM TESTER) Dec 18/02...
  • Page 99 (h) Read the total resistance for the compensator. (i) Make sure the resistance shown on the test unit is more than 2000 megohms. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 505 (SIMMONDS SYSTEM TESTER)
  • Page 100 (c) Set the FUNCTION MEASURE switch (PSD40-1) or set the SELECT switch (PSD60-1, -2) or the MEGGER SELECT switch (PSD60-2R) to TU. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 506 (SIMMONDS SYSTEM TESTER)
  • Page 101 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 507 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 102 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 508 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 103 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 509 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 104 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 3) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 510 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 105 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 4) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 511 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 106 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 5) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 512 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 107 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 6) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 513 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 108 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 514 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 109 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 515 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 110 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 (Sheet 3) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 516 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 111 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 (Sheet 4) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 517 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 112 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 (Sheet 5) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 518 (SIMMONDS SYSTEM TESTER) April 19/02...
  • Page 113 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Capacitance Measurement Figure 503 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 519 (SIMMONDS SYSTEM TESTER) April 19/02...

  • Page 114: Table Of Contents

    (g) At P6 Main Power Distribution Panel, close these circuit breakers and remove DO-NOT- CLOSE tags: 1) FUEL QTY 2) EP GND FUELING EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 520 (SIMMONDS SYSTEM TESTER) Dec 18/02...
  • Page 115 6. Adjust to the appropriate units by pressing the “UP” button for LB and the “DOWN” button for the KG units. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 521 (SIMMONDS SYSTEM TESTER)
  • Page 116 After displaying “P07”, the display will change to show the last entered value. 18. Adjust the displayed value to “-80” by using the select buttons as required. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 522 (SIMMONDS SYSTEM TESTER)

  • Page 117: Tank Capacitance (Pf)

    After displaying “P10” the display will change to show the last entered value. Adjust the displayed value to “8600” for all tanks by using the select buttons as required. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 523 (SIMMONDS SYSTEM TESTER)
  • Page 118 5. Place “CAL-RUN” jumper in “CAL” mode for Center Tank. 6. Close “FUEL QTY” circuit breaker. The indicator will display “CAL”. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 524 (SIMMONDS SYSTEM TESTER)
  • Page 119 For example, if “P10” is 11060, enter 1106 for “P05”. 18. Depress both “UP” and “DOWN” select buttons simultaneously to advance to CAL. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 525 (SIMMONDS SYSTEM TESTER)

  • Page 120: Verify That Fuel Level Has Shut Off Within .5% Of Initial Setting. If Shutoff Is Unsatisfactory Then Repeat Calibration Procedure

    ±30 KG 27. Close P15, Refuel Control Panel. 28. Repeat steps 4.C.2 through 4.C.27 for all other tanks to be calibrated. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 526 (SIMMONDS SYSTEM TESTER)
  • Page 121 Step 4.C.3 X _______________ Fuel Volume (U. S. Gal or Liters) Step 4.C.10 = _______________ Fuel Weight, P4 (Lbs or Kg) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 527 (SIMMONDS SYSTEM TESTER) April 19/02...

  • Page 122: Airplanes With Smiths 2307 Model Fuel Quantity Indicators With Tsu Config

    C. Retract the leading edge flaps (Ref 27-81-00/201). D. Remove the electrical power, if it is not necessary for other tasks (Ref 24-22-00/201). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.2 with TSU Page 528 (SIMMONDS SYSTEM TESTER)
  • Page 123 (1) Location Zones Control Cabin, Left Right Wing Outboard Leading Edge (2) Access Panels 6540 Refueling Station Access Door EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 501 (BARFIELD SYSTEM TESTER) July 15/02...
  • Page 124 (a) Open fueling station door. (b) Calculate the fuel quantity for each tank using the fuel measuring sticks (Ref. AMM 12-11-00). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 502 (BARFIELD SYSTEM TESTER)
  • Page 125 Left Wing Inboard Leading Edge Right Wing Outboard Leading Edge Right Wing Inboard Leading Edge (2) Access Panels 6540 Refueling Station Access Door EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 503 (BARFIELD SYSTEM TESTER) Dec 18/02...
  • Page 126 (11) Disconnect the TSU J1 and J2 connector plugs and install TSU jumper harness to airplane wire bundle and tank harness. Connect harness ground jumpers together, and do not ground to airframe. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 504 (BARFIELD SYSTEM TESTER)
  • Page 127 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 1) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 505 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 128 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 506 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 129 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 2) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 507 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 130 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 3) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 508 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 131 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 4) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 509 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 132 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 5) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 510 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 133 Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Fuel Quantity Indicating System Component Location Figure 501 (Sheet 6) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 511 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 134 (g) Remove the shorting plug from the UNSHIELDED wire bundle. (h) Connect the UNSHIELDED wire bundle to the LO-Z TANK receptacle. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 512 (BARFIELD SYSTEM TESTER)
  • Page 135 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Resistance Measurement Figure 502 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 513 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 136 MAINTENANCE MANUAL SUPPLEMENT Smiths Aerospace Electronic Systems – Malvern DOC NO.0134ED BOEING B737-100/200/300/400/500 Test Equipment Set-Up for Capacitance Measurement Figure 503 EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 514 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 137 If you turn the thumbwheels to a position farther than the correct position, the value increases. (v) Turn the D.F. CONTROL knob until the meter shows the minimum value. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 515 (BARFIELD SYSTEM TESTER)
  • Page 138 CCW until flush with internally threaded tube, turn clockwise one or two turns until resistance to rotation is felt. Reinstall the trimmer’s plastic cover. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 516...
  • Page 139 12. Adjust the displayed value to the appropriate full weight value plus 5%. The full weight is calculated as the Placard volume multiplied by nominal fuel density. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 517...
  • Page 140 Adding 20 counts is equivalent to adding 2.0 pF. For example if parameter P09 reads 4905 (490.5 pF), then adjust to 4925 (492.5 pF). Refer to AMM Chapter 28 to verify “Nominal Dry Tank Capacitance”. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 518 (BARFIELD SYSTEM TESTER)
  • Page 141 31. The indicator will display zero fuel quantity with no error codes. 32. Repeat steps 4.B.1 through 4.B.30 for all tanks to be calibrated. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 519...
  • Page 142 NOTE: If actual density of fuel is outside the limits permitted for parameter P03, the limit closest to the actual density should be entered. For example, if density is 6.437 lbs/gal, 6600 should be entered for “P03”. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 520 (BARFIELD SYSTEM TESTER)
  • Page 143 25. Verify that fuel level has shut off within .5% of initial setting. If shutoff is unsatisfactory then repeat calibration procedure. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 521 (BARFIELD SYSTEM TESTER)
  • Page 144 ±30 KG 27. Close P15, Refuel Control Panel. 28. Repeat steps 4.C.2 through 4.C.27 for all other tanks to be calibrated. EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 522 (BARFIELD SYSTEM TESTER)
  • Page 145 Step 4.C.3 X _______________ Fuel Volume (U. S. Gal or Liters) Step 4.C.10 = _______________ Fuel Weight, P4 (Lbs or Kg) EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 523 (BARFIELD SYSTEM TESTER) April 19/02...
  • Page 146 C. Retract the leading edge flaps (Ref 27-81-00/201). D. Remove the electrical power, if it is not necessary for other tasks (Ref 24-22-00/201). EFFECTIVITY 28-41-04 Airplanes with Smiths 2307 Model Fuel Quantity Indicators CONFIG 4.3 with TSU Page 524 (BARFIELD SYSTEM TESTER)

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Table of Contents