Atch 3 - TO 13F4-4-121.pdf

TO 13F4-4-121

TECHNICAL MANUAL

OPERATION, SERVICE AND MAINTENANCE

WITH

ILLUSTRATED PARTS BREAKDOWN

FIRE EXTINGUISHER, WHEELED

LIQUIFIED GAS, 150 LB. CAPACITY

MODEL 600

PN 07351

PN 03496

PN 05673

NSN 4210-01-140-2233

NSN 4210-01-332-0793

NSN 4210-01-457-9062

AMEREX CORPORATION

F09603-82-C-2199

This manual supersedes TO 13F4-4-121 dated 10 January 1991, Change 12 dated 8 April 2015.

DISTRIBUTION STATEMENT A - Approved for public release; distribution is unlimited. PA Case Number 05-07138. Other requests for this document shall be referred to 406 SCMS/GUEE, Robins AFB, GA 31098. Questions concerning technical content shall be referred to

AFLCMC/WNZ.

Published Under Authority of the Secretary of the Air Force

2 DECEMBER 2018

Dates of issue for original and changed pages are:

Original. . . . . . . .0 . . . . 2 December 2018

TOTAL NUMBER OF PAGES IN THIS PUBLICATION IS 78, CONSISTING OF THE FOLLOWING:

Page *Change No. No.

Page *Change No. No.

Page *Change No. No.

Title A i - vii viii Blank ix - xii 1-1 - 1-3 1-4 Blank 2-1 - 2-2 3-1 - 3-2 4-1 - 4-4 5-1 - 5-30 6-1 6-2 Blank 7-1 - 7-10 7-11 Blank 7-12 - 7-20

TO 13F4-4-121

LIST OF EFFECTIVE PAGES

INSERT LATEST CHANGED PAGES. DESTROY SUPERSEDED PAGES.

NOTE The portion of the text affected by the changes is indicated by a vertical line in the outer margins of the page. Changes to illustrations are indicated by shaded or screened areas, or by miniature pointing hands.

* Zero in this column indicates an original page.

A USAF

TABLE OF CONTENTS

Chapter Page

LIST OF ILLUSTRATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

1 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 HOSE WITH SUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.3 AGENT STORAGE CYLINDER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.4 CARRIAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.5 LEADING PARTICULARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

2 PREPARATION FOR USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 UNPACKING AND HANDLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.1 New Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.2 Used Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 PREPARATION FOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

3 THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1 EXTINGUISHING AGENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1.1 Halon 1211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.2 EQUIPMENT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

4 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1 CONTROLS AND INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.1 Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.2 Discharge Valve and Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.3 Nozzle Valve and Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.4 Nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.5 Agent Level Gauge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.1.6 Pressure Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2 OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2.1 Pre-Operation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2.2 Operation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.3 SHUTDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.4 POST FIRE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

5 INSPECTION, MAINTENANCE, RECHARGING, AND TESTING . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.1.1 Hydrostatically Proof Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.2 Fire Extinguisher Gauges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.3 Hose Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 i

5.2.4 Cylinder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.5 Safety Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.6 Discharge Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.7 Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.8 Nozzle Valve Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.9 Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.10 Carriage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5.3 SERVICE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

5.4 COMPLETE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

5.5 CORRECTIVE MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5.6 NOZZLE VALVE ASSEMBLY PN 05011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5.6.1 Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5.6.2 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

5.6.3 Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5.6.4 Inspect/Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5.6.5 Repair/Replace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5.6.6 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

5.6.7 Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

5.6.8 Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

5.7 DISCHARGE VALVE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

5.7.1 Remove from Cylinder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

5.7.2 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

5.7.3 Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

5.7.4 Inspect/Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

5.7.5 Repair/Replace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

5.7.6 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

5.7.7 Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

5.8 CYLINDER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

5.8.1 Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

5.8.2 Inspect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

5.8.3 Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

5.9 AGENT LEVEL GAUGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

5.9.1 Remove from Cylinder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

5.9.2 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

5.9.3 Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

5.10 HOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

5.10.1 Remove from Nozzle Valve Assembly and Discharge Valve . . . . . . . . . . . . . . . . . . . . . . . . 5-14

5.10.2 Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

5.11 HOSE SUPPORT BRACKET AND NOZZLE MOUNT ASSEMBLY. . . . . . . . . . . . . . . . . . 5-15

5.11.1 Remove from Cylinder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

5.11.2 Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

5.12 WHEEL AND TIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

5.12.1 Remove . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

5.12.2 Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

5.13 CARRIAGE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

5.14 RECHARGE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

5.14.1 Recharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

5.14.1.1 Complete Recharge Procedures are Performed as Follows: . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

5.15 12 YEAR HYDROSTATIC PROOF PRESSURE TEST OF CYLINDER AND HOSE/COM-

PLETE MAINTENANCE (OPTIONAL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

5.16 TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

5.16.1 Corrosion Prevention and Painting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28

6 PREPARATION FOR SHIPMENT AND STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

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TABLE OF CONTENTS - CONTINUED

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6.1 SHIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2 STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.3 DISPOSAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

7 ILLUSTRATED PARTS BREAKDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

SECTION I INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.2 MODELS COVERED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.3 FINDING PART NUMBERS, ILLUSTRATION, DESCRIPTION . . . . . . . . . . . . . . . . . . . . 7-1

7.4 SIMILAR ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.5 SHEET NUMBER EXPLANATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.6 UOC(S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.7 SOURCE, MAINTENANCE, AND RECOVERABILITY (SMR) CODES . . . . . . . . . . . . . . 7-2

7.8 PARTS STANDARDIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.9 MANUFACTURER’S LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10 MAINTENANCE PARTS LIST (MPL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.1 Figure and Index Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2 Part Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.1 Commercial Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.2 Parts Not Illustrated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.3 Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.2.4 Government Furnished Equipment (GFE) and Contractor Furnished Equipment (CFE) Covered by Separate Manuals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.3 CAGE Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.4 Description Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.10.4.1 Indentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.10.5 Units Per Assembly (UPA) Column. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.10.6 UOC Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.10.7 SMR Code Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.11 NUMERICAL INDEX (NI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.11.1 Part Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.11.2 Figure and Index Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.12 REFERENCE DESIGNATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.12.1 Reference Designator Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

7.12.2 Figure and Index Number Column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

SECTION II MAINTENANCE PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

SECTION III NUMERICAL INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

TO 13F4-4-121

TABLE OF CONTENTS - CONTINUED

iii

LIST OF ILLUSTRATIONS

Number PageTitle

1-1 150 lb. Wheeled, Liquified Gas, Fire Extinguisher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2-1 Pressure-Temperature Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 4-1 150 Pound (lb.) Wheeled, Liquified Gas, Fire Extinguisher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 5-1 Discharge Hose Coiling Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21 5-2 Agent Level Gauge Body and Plastic Indicator Face PN 06780 . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22 5-3 Agent Level Gauge Alignment PN 06780. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22 5-4 Fire Extinguisher Recharge System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23 5-5 Recharge Adapter Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25 5-6 Hydrotest Adapter Amerex Corporation PN 05152 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26 5-7 Reflective Material Location and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27 7-1 150 pound (lb.) Wheeled, Liquified Gas, Fire Extinguisher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8 7-2 Nozzle Valve Assembly, 05011, Amerex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12 7-3 Discharge Valve, 05006, Amerex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14 7-4 Nozzle Valve Assembly, 05295 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16 7-5 Pull Pin and Lanyard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

LIST OF TABLES

Number PageTitle

1-1 Leading Particulars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 3-1 Halon 1211 Physical Properties. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 5-1 Allowable Leakage Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18 iv

INTRODUCTION

1 PURPOSE.

The purpose of this manual is to provide operation and maintenance personnel with the information necessary to operate, service, maintain, and repair the 150 pound (lb.) wheeled, liquified gas fire extinguishers, Model 600, Part Number (PN) 07351, PN 03496 and PN 05673. The Model 600 fire extinguisher (see Figure 1-1) is produced by Amerex Corporation, PO Box 81, Trussville, AL 35173 (Commercial and Government Entity (CAGE) 54905).

2 SCOPE.

Chapter 1, in this manual, contains a brief description of the fire extinguisher and lists the leading particulars. Chapter 2 provides instructions necessary to prepare the fire extinguisher for use. Chapter 3 describes the fire extinguishing agent and how the equipment operates. Chapter 4covers unit operation. Chapter 5 provides maintenance instructions for the fire extinguisher and includes preventive maintenance, service maintenance, corrective maintenance and repair. Chapter 6 in-cludes information on unit shipment and storage. Chapter 7 contains the illustrated parts breakdown and illustrations of the fire extinguisher with key index numbers to aid in locating and identifying the detail parts.

3 SYMBOLS.

- A dash (-) before an index number denotes a part which is not illustrated.

* An asterisk (*) flush right of the part number denotes a marking that is to be requisitioned in accor-dance with DODI 5330.03_AFI 33-395.

# A number sign (#) flush right of a part number indicates that detail parts are listed in a separate manual.

F The letter “F” before the figure number means “follows” and is used when an assembly or part has not been assigned an index number, and the figure and index number of the preceding part has been used.

4 ABBREVIATIONS.

All abbreviations used in this manual are shown in the list of abbreviations below. Standard abbreviations are in accordance with ASME Y14.38, Abbreviations and Acronyms for Use on Drawings and Related Documents.

°C degrees Celsius °F degrees Fahrenheit AF Air Force AFTO Air Force Technical Order ALT Alternate AP Attaching Parts AR As Required ASSY Assembly BCF Bromochlordifloromethane CAGE Commercial and Government Entity CFE Contractor Furnished Equipment CGA Compressed Gas Association DLA Defense Logistics Agency DoD Department of Defense DOT Department of Transportation ESDS Electrostatic Discharge Sensitive ETIMS Enhanced Technical Information Management System GE General Electric GFE Government Furnished Equipment HAZMAT Hazardous Material v

HCI Hardness Critical Items ID Inside Diameter I&S Interchangeability and Substitution IPB Illustrated Parts Breakdown kPa kilopascal

lb. pound MPH Mile Per Hour MPL Maintenance Parts List N2 Nitrogen NFPA National Fire Protection Association NHA Next Higher Assembly No. Number NPT National Pipe Thread NI Numerical Index OD Outside Diameter OSHA Occupational Safety and Health Administration PN Part Number PSIG Pound-force per Square Inch, Gauge RDI Reference Designator Index REF Reference SDS Safety Data Sheets SMR Source, Maintenance, and Recoverability TCTO Time Compliance Technical Order TO Technical Order TOMA Technical Order Management Agency UOC Usable on Code UPA Units Per Assembly

5 RELATED PUBLICATIONS.

NOTE

When searching Technical Order (TO) numbers in the Enhanced Technical Information Management System (ETIMS) catalog, please use the wildcard (*) after typing in the TO number. Many TOs are not available in paper format, (i.e., digital (WA-1) or Compact Disk (CD-1)). This ensures TOs in all media formats will populate the search.

The following publications contain information in support of this technical manual.

List of Related Publications

Number Title ASME Y14.38 Abbreviations and Acronyms for Use on Drawings and Related Documents DODI 5330.03_AFI 33-395 Defense Logistics Agency (DLA) Document Services TO 00-5-1 AF Technical Order System TO 00-25-195 AF Technical Order System Source, Maintenance, and Recoverability Coding of Air

Force Weapons, Systems, and Equipments TO 00-25-234 General Shop Practice Requirements for the Repair, Maintenance, and Test of Electri-cal Equipment vi

6 RECORD OF APPLICABLE TIME COMPLIANCE TECHNICAL ORDERS (TCTOS).

List of Time Compliance Technical Orders

TCTO

Number

TCTO

Title

TCTO

Date

None

7 HARDNESS CRITICAL ITEMS (HCI).

The HCI symbol ( ) establishes special requirements limiting changes and substitutions and that the specific parts listed must be used to ensure hardness is not degraded.

If included, items with nuclear survivability requirements are marked with the HCI symbol ( ). All changes to, or proposed substitutions of, HCIs must be approved by the acquiring activity.

8 ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) ITEMS.

All ESDS parts shall be handled in accordance with the ESDS device handling procedures in TO 00-25-234.

If included, items containing ESDS parts are marked with the ESDS symbol ( ).

9 CHANGE RECOMMENDATIONS.

Recommendations proposing changes to this technical order shall be submitted on an Air Force Technical Order (AFTO) Form 22 in accordance with TO 00-5-1. Forward completed AFTO Form 22 to the Technical Order Management Agency (TOMA) at: robins.ce.afto22@us.af.mil.

vii/(viii blank)

SAFETY SUMMARY

1 GENERAL SAFETY INSTRUCTIONS.

This manual describes physical and/or chemical processes which may cause injury or death to personnel, or damage to equipment, if not properly followed. This safety summary includes general safety precautions and instructions that must be understood and applied during operation and maintenance to ensure personnel safety and protection of equipment. Prior to performing any specific task, the WARNINGs, CAUTIONs, and NOTEs included in that task shall be reviewed and under-stood.

2 WARNINGS, CAUTIONS, AND NOTES.

WARNINGs and CAUTIONs are used in this manual to highlight operating or maintenance procedures, practices, condi-tions, or statements which are considered essential to protection of personnel (WARNING) or equipment (CAUTION).

WARNINGs and CAUTIONs immediately precede the step or procedure to which they apply. WARNINGs and CAUTIONs consist of four parts: heading (WARNING, CAUTION, or icon), a statement of the hazard, minimum precautions, and possible results if disregarded. NOTEs are used in this manual to highlight operating or maintenance procedures, practices, conditions, or statements which are not essential to protection of personnel or equipment. NOTEs may precede or follow the step or procedure, depending upon the information to be highlighted. The headings used and their definitions are as follows:

Highlights an essential operating or maintenance procedure, practice, condition, statement, etc. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

Highlights an essential operating or maintenance procedure, practice, condition, statement, etc. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

NOTE

Highlights an essential operating or maintenance procedure, condition, or statement.

3 HAZARDOUS MATERIALS WARNINGS.

Hazardous Materials Warnings are provided through use of the following Hazard Symbols. Consult the HAZARDOUS MATERIALS DESCRIPTION or Safety Data Sheet (SDS) (formerly MSDS) (Occupational Safety and Health Administra-tion (OSHA) Form 20 or equivalent) for specific information on hazards, effects, and protective equipment requirements.

MSDS and SDS may be used interchangeably. If you do not have an SDS for the material involved, contact your supervisor, or the base Safety or Bioenvironmental Engineering Offices.

3.1 Hazardous Materials Icons. The following icons are used throughout Air Force technical manuals to indicate the use of hazardous materials:

The abstract symbol bug shows that a material may contain bacteria or viruses that present a danger to your life or health.

ix

The symbol of a human figure in a cloud shows that the material gives off vapors that are a danger to life or health.

The symbol of drops of liquid onto a hand shows that the material will cause burns or irritation of skin and tissue.

The symbol of a hand in a block of ice shows a material is so cold it will burn your skin on contact.

The rapidly expanding symbol shows that the material may explode if subjected to high temperatures, sources of ignition or high pressure.

The symbol of a person wearing goggles shows that the material will injure eyes.

The symbol of a flame shows that the material can ignite and burn.

The symbol of a skull and crossbones shows that the material is poisonous or a danger to life.

The symbol of a liquid entering the mouth shows that eating or drinking this material can cause a health hazard.

The symbol of an O with a flame shows a material that is a fire hazard when near flammable or or-ganic materials.

The symbol of three circular wedges shows that radioactive energy is emitted which can injure tissue and organs.

The hand symbol shows a material that can irritate the skin or enter the body through the skin and cause a health hazard.

3.2 Hazardous Materials Description. The following detailed HAZMAT warnings pertain to materials or substances used in connection with procedures called out or described in this technical manual. Use these advisory warnings and their associated precautions in conjunction with the current SDS for each material or substance. If there is conflict between this safety summary and the SDS, the SDS takes precedence.

x

DRY CLEANING SOLVENT, MIL-PRF-680 1

Dry Cleaning Solvent is flammable and may contain the following hazardous chemicals: Naphtha (petroleum), Alkanes and/or C9 - C12 hydrocarbons which are skin and eye irritants and respiratory depressants. Exposure can occur through inhalation, ingestion, or skin and eye contact. May be fatal if swallowed. Avoid repeated and prolonged contact. Use with adequate ventilation. Do not ingest. Appropriate skin and eye protection must be worn.

ACETONE, ASTM D329 2

Acetone is extremely flammable and an eye, skin, and respiratory irritant. Harmful if swallowed. Avoid contact with skin and eyes, and avoid breathing vapors. Do not ingest. Keep away from heat, sparks and flame. Protection: butyl gloves and chemical goggles. Face shield and required when splashing is possible or expected. Use in a well ventilated area. Half mask respirator required in poorly ventilated areas. Keep container tightly closed when not in use. Store in a cool, dry, ventilated area, away from incompatible substances.

EPOXY PRIMER, MIL-PRF-23377 3

Epoxy primer is flammable and harmful if absorbed through the skin. Causes respiratory tract and skin irritation. May cause burns to eyes, mouth, throat and stomach. Use only with adequate ventilation. Appropriate skin and eye protection must be worn. Do not ingest. Keep away from heat, sparks and flame. Keep container tightly closed when not in use. Store in a cool, dry, ventilated area, away from incompatible substances.

ZINC CHROMATE PRIMER, TT-P-1757 4

Zinc Chromate Primer is a flammable liquid and vapor. It may cause eye, skin and respiratory tract infection. Use only in well ventilated areas. Do not ingest. Appropriate skin and eye protection must be worn and respiratory protection may also be needed. Contact lenses should not be worn. Keep away from heat, spark, and flames.

GENERAL PURPOSE AIRCRAFT GREASE, MIL-PRF-81322 5

Grease is an eye, skin, and respiratory irritant. May be harmful if swallowed. May cause cancer. Avoid repeated and prolonged contact. Use with adequate ventilation. Appropriate skin and eye protection must be worn.

WHEEL BEARING LUBRICANT, MIL-G-10924 6

WHEEL BEARING LUBRICANT, MIL-G-10924, is a lubricant that is flammable and highly toxic to the skin, eyes, and respiratory tract. Skin and eye protection is required when using this primer. Positive ventilation and/or respiratory protec-tion is required. Keep item away from high heat producing sources, open flames, or other sources of ignition. Failure to comply may result in injury to personnel.

xi

SODIUM BICARBONATE, MIL-C-87936 7

Sodium Bicarbonate, MIL-C-87936 is used in dry chemical fire extinguisher. Side effects may be stomach pain, and ulcers.

Sodium bicarbonate is nontoxic, but the consumption of large amounts of this material, which is found in supplements or baking powder and baking soda, can cause poisoning. Slightly hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation.

MIL-STD-TT-1-32, PAINT 8

Contents are FLAMMABLE. Keep away from heat and open flame. Do not take internally. Avoid breathing vapor or mist.

Do not use in tank or pit without proper protection.

MIL-PRF-24712, POWDER COATING 9

Causes severe eye irritation. Caused primary skin irritation, other effect of skin contact may cause skin sensitization.

Swallowing large amounts may be harmful. Material can get into lungs during swallowing or vomiting. This results in lung inflammation and other lung injury. Breathing large amounts may be harmful. Symptoms usually occur at air concentration higher than the recommended exposure limits.

xii

CHAPTER 1

GENERAL INFORMATION

1.1 DESCRIPTION.

The 150 pound (lb.) wheeled, liquified gas fire extinguisher is a portable fire extinguisher capable of being towed at speeds up to 15 Miles Per Hour (MPH) over a level, paved surface. The wheeled fire extinguisher is used to provide large scale, fire protection where mobility is needed to reach local, separated, multiple fire hazard areas and combat flammable liquid, electrical or carbonaceous fires. The unit is charged with 150 lbs of Bromochlorodifluoromethane (BCF), Halon 1211 fire protection agent and pressurized with Nitrogen (N2) to 200±20 Pounds-force Per Square Inch, Gauge (PSIG) to facilitate agent discharge. Basically, the 150 lb, wheeled, liquified gas, fire extinguisher consists of a hose with support, agent storage cylinder assembly and carriage for transportation.

1.2 HOSE WITH SUPPORT.

The hose, which provides mobility to the operator when fighting a fire, has a nozzle valve assembly at its end to permit flow control. The hose support is used to mount the hose and nozzle. The extinguisher hose is looped around the hose support and the nozzle valve assembly is held by the nozzle mount and clips. Some extinguishers may have an upgraded hose rack/ nozzle mount which utilizes a retaining ring and no longer uses the hose clips.

1.3 AGENT STORAGE CYLINDER ASSEMBLY.

The agent storage cylinder assembly is equipped with the cylinder discharge valve with safety outlet, pressure valve, and agent level gauge. The cylinder assembly is steel fabricated, conforms to the Department of Transportation 4BW240 Speci-fication, and has an internal volume of 4,350 cubic inches, nominal. The cylinder assembly is used to store the extinguishing agent under pressure. The cylinder assembly mounts between the carriage and hose support assemblies.

1.4 CARRIAGE.

The carriage is a welded steel tube assembly with two either pneumatic or semi-pneumatic tires and wheels mounted on a steel axle. The carriage is equipped with a three inch Inside Diameter (ID) lunette for towing. The axle is welded to the carriage and positions the wheels off the ground when the unit is in a vertical position. The carriage assembly provides mobility and is used to mount the cylinder assembly with hose support.

1-1

1.5 LEADING PARTICULARS.

Leading particulars for the 150 lb., wheeled, liquified gas, fire extinguisher are contained in Table 1-1.

Table 1-1. Leading Particulars

Item Characteristics Fire Extinguisher

Agent Halon 1211 BCF in accordance with Specification MIL-B-38741 (N2)

Pressurant Gas Operating Temperature -40 degrees Fahrenheit (°F) (18 degrees Celsius (°C)) to

-135 °F (57 °C) Safety Outlet 400 to 500 PSIG at 70 °F (20.1 °C) Discharge Approx Discharge Time 44 seconds Range-Agent Throw 35 to 50 feet

Figure 1-1. 150 lb. Wheeled, Liquified Gas, Fire Extinguisher

1-2

Table 1-1. Leading Particulars - Continued

Item Characteristics Weight:

Agent 150 pound normal Vehicle Charged 325±15 lbs.

Dimensions:

Height 59 inches Width 29 inches Depth 36 inches

Cylinder Assembly:

Design DOT 4BW240 Internal Volume 4,350 cubic inches nominal

Pressure:

Service 200±20 PSIG Test 480 PSIG Burst 960 PSIG minimum

Wheel:

Type Pneumatic, light duty. Some units have been delivered with semi-pneumatic wheels.

Tire Size 16 inches by 4.00 inches

Hose:

Type Rubber Size 3/4 inch ID Length 50 feet

1-3/(1-4 blank)

CHAPTER 2

PREPARATION FOR USE

2.1 UNPACKING AND HANDLING.

2.1.1 New Unit.

• The new 150 pound (lb.), wheeled, liquified gas, fire extinguisher will be received at the operation site as a completely assembled, uncharged and unpressurized unit. A tag will be attached which says: “CAUTION This extinguisher is not charged. Follow charging instructions in service manual before putting to use. Remove tag only after extinguisher is properly charged.” Special unpacking procedures are not required. When handling the fire extinguisher, observe the normal precautions used when handling equipment to be pressurized and avoid damage that might occur when dropping it.

• Cylinder and valve assemblies from the factory have been internally dried and contain dry nitrogen at 5 Pounds-force per Square Inch, Gauge (PSIG) or slightly above. The discharge valve should remain closed until the extin-guisher is charged.

2.1.2 Used Unit. The fire extinguisher will be received at the maintenance site as a completely assembled empty or partially filled, pressurized unit. The unit may or may not be packaged. Unpacking and handling procedures are the same as for a new unit, as applicable.

2.2 PREPARATION FOR OPERATION.

The fire extinguisher is designed to withstand environmental exposure; therefore, the unit should be stored in a convenient, readily detected location. New units need to be charged with Halon 1211 and Nitrogen (N2) before they are ready to use.

Refer to Service Maintenance Paragraph 5.3.

• To ensure used units are ready for operation, visually inspect the pressure gauge and agent level gauge. The pressure gauge should be in the green zone, 200±20 PSIG range and the pointer in the agent level gauge should indicate agent level at the full mark, 150 lbs.

• Temperature of extinguisher can affect pressure gauge reading and agent level gauge reading. Nominal “properly charged” marking on both gauges is correct for 70 degrees Fahrenheit (°F) (21 degrees Celsius (°C)). Generally as temperature goes up the two gauge readings go up and conversely low temperature results in low gauge readings.

• The relative pressure gauge versus temperature reading for the Amerex 150 lb. Halon wheeled extinguisher is as follows:

Temperature °F: -40 32 70 °F 120 135 Pressure Gauge PSIG: 127 168 200 263 288 Temperature °C: 140 0 21 °C 49 57

• It is best to inspect gauge readings when unit temperature is near 70 °F. The chart above and the chart below are of use in estimating unit pressure and agent fill conditions at other temperatures.

• The Pressure-Temperature Chart is attached to the cylinder top. The minimum PSIG and maximum gauge readings are found directly to the left of where a vertical line from the selected temperature cuts through the two curves. The gauge reading will be between the minimum and maximum points on a properly charged unit.

2-1

• The cylinder contains Halon 1211 agent in mostly liquid form. Agent level gauge uses a float to sense liquid level and position gauge point. Height of liquid agent above the inside bottom of container is as follows:

Temperature -40 °F 70 °F 122 °F 135 °F Agent Height 15.22 inches 16.47 inches 17.79 inches 17.86 inches Temperature -40 °C 21 °C 50 °C 57 °C

• The liquid level height changes +1.40 to -1.25 inches from the nominal 70 °F position over the operating tempera-ture range.

• Temperatures of 90 °F and above will cause the agent level indicator on a properly charged unit to read well up into the overcharged area. If confirmation of a proper amount of Halon 1211 charge is required, weigh the unit and compare with the gross weight shown on the extinguisher label.

• Temperatures below 40 °F will cause the agent level indicator to show below the FULL mark. Units in cold environments may be check weighted or brought inside for warm up to determine a satisfactory agent fill weight.

• Weighing the unit on a scale is the most accurate method to determine if an extinguisher is properly charged.

Figure 2-1. Pressure-Temperature Chart

2-2

CHAPTER 3

THEORY OF OPERATION

3.1 EXTINGUISHING AGENT.

3.1.1 Halon 1211. The extinguishing agent Halon 1211 (Bromochlorodifluoromethane (BCF)) is a halogenated hydrocar-bon chemically identified as (BCF). Its chemical symbol is CBrC1F2. Halon 1211 is a colorless, faintly sweet-smelling, electrically nonconductive gas, at ambient conditions having an approximate boiling point of 25 degrees Fahrenheit (°F) (-3.4 degrees Celsius (°C)) and a freezing point of -256 °F (-160 °C). Halon 1211 is a liquified gas under its own vapor pressure in a closed container at ambient temperatures.

3.1.1.1 Halon 1211 is a clean, multipurpose fire fighting agent. Effective for Class ABC fires, Halon 1211 extinguishes by chemically interrupting the fire chain reaction, the continuing combination of oxygen, fuel and heat. Halon 1211 does not extinguish by depleting the oxygen supply. Discharged as an 85 percent liquid/15 percent vapor stream, Halon 1211 offers long discharge range, which helps the operator to stay at a safe distance while fighting a fire. The liquid/vapor discharge allows Halon 1211 to flow around obstructions when extinguishing tough-to-reach fires.

3.1.1.2 Halon 1211 has a low level of toxicity. It has been approved for use in portable fire extinguishers by Underwriters Laboratories in Standard Number 1093 and in local applications by National Fire Protection Association (NFPA) in Standard Number (No.) 12B (1990 edition) and NFPA403 (2003 edition). The Federal Aviation Administration Advisory Circular 20-42B also recommends the use of Halon 1211 portables on commercial aircraft.

Although Halon 1211 vapor has a low toxicity, its decomposition products can be hazardous. On decomposition, Halon 1211 has a characteristic sharp, acrid odor, even in concentrations of only a few parts per million. The odor characteristic provides a built-in warning system for the agent and at the same time creates a noxious irritating atmosphere for those who are in the hazard area during and following a fire. Leave and/or ventilate the area after fighting the fire.

3.1.1.3 Physical characteristics of Halon 1211 are indicated in Table 3-1.

3.2 EQUIPMENT OPERATION.

In a charged extinguisher ready for operation, the extinguishing agent is stored under pressure in the cylinder assembly and retained in the cylinder by the cylinder discharge valve. Operating the cylinder discharge valve lever opens the discharge valve allowing pressurized extinguishing agent to flow from the cylinder via the cylinder syphon tube through the discharge valve to the extinguisher hose and nozzle valve assembly. With the nozzle valve closed, the extinguisher nozzle with hose attached can be carried by hand to the fire hazard. With pressurized extinguishing agent up to the nozzle, opening the nozzle valve will permit agent flow through the nozzle to the fire. Pictographic operating instructions on the extinguisher illustrate how to put it into operation. The fire extinguisher includes a pressure gauge and safety outlet. The pressure gauge indicates the cylinder internal pressure. In the eventuality that a high cylinder pressure buildup should occur, the safety outlet is designed to relieve at 400 to 500 PSIG.

Table 3-1. Halon 1211 Physical Properties

Item Characteristics Formula CBrC1F2

Boiling Point 25 °F (-3.4 °C) Freezing Point -256 °F (-160 °C) Liquid Density 114 pounds per feet cubed (1830 kilograms per meter cubed) at 68 °F (20 °C) Vapor Pressure 19.6 Pounds-force per Square Inch, Gauge (PSIG) at 68 °F (20 °C)

3-1

Table 3-1. Halon 1211 Physical Properties - Continued

Item Characteristics Specification MIL-B-38741

3-2

CHAPTER 4

OPERATING INSTRUCTIONS

4.1 CONTROLS AND INSTRUMENTS.

4.1.1 Pressure Gauge. The fire extinguisher, see Figure 4-1, includes a pressure gauge. The pressure gauge is used to monitor the cylinder pressure.

4.1.2 Discharge Valve and Lever. The discharge valve, which includes pressure gauge and safety outlet, is used to retain the agent contents in the cylinder, see Figure 4-1. The Discharge Valve includes a hand operated lever that operates the Discharge Valve to allow or stop agent flow from the cylinder to the hose and nozzle valve assembly. The safety outlet relieves pressure at 400 to 500 Pounds-force per Square Inch, Gauge (PSIG).

4.1.3 Nozzle Valve and Lever. The nozzle valve is located at the free hose end and is used to retain the agent in the hose, see Figure 4-1. The nozzle valve includes a hand operated lever that operates the nozzle valve to allow or stop the discharge of agent through the extinguisher nozzle.

4.1.4 Nozzle. The nozzle is located on the outlet side of the nozzle valve, see Figure 4-1.

4.1.5 Agent Level Gauge. The agent level gauge provides a visual display of the level of liquified Halon 1211 in the cylinder.

4.1.6 Pressure Valve. The pressure valve is located on the discharge valve, see Figure 4-1. The valve is used during cylinder assembly service recharge.

4.2 OPERATION.

4.2.1 Pre-Operation Procedure. Transport the fire extinguisher to the fire hazard area and locate the extinguisher within the scope of the 50 foot long hose. At the fire hazard site, position fire extinguisher in vertical position with wheels off ground.

NOTE

The extinguisher may be operated in either the vertical or reclined position. However, the unit in the reclined position will discharge less agent.

4.2.2 Operation Procedure. Perform unit operation, see Figure 4-1, as follows:

Make certain the discharge nozzle is closed (down position) and the extinguisher is upright before beginning the following steps. Failure to comply could result in injury to, or death of, personnel or long term health hazards.

a. Pull on pin to remove and open tank discharge valve by rotating (pulling) valve lever at top of tank toward the hose 90 degrees. The hose is now pressurized.

b. Pull the nozzle with lever in the CLOSED position from the hose storage mount and extend the hose toward the fire.

NOTE

Stand at least 30 feet away from fire before opening the nozzle valve.

c. Grasp nozzle firmly and aim nozzle at base of fire.

4-1

Be prepared for backward reaction (movement) of the nozzle as discharge begins. Failure to comply could result in damage to, or destruction of, equipment or loss of mission effectiveness.

d. Hold hose and nozzle firmly to allow for discharge recoil. Open nozzle by pulling handle toward you.

The concentrated agent and the by-products resulting from application to a fire are toxic when inhaled. After use, leave the area and ventilate well before returning. Symptoms of over-exposure to pure Halon 1211 are: dizziness, impaired coordination, and reduced mental acuity. Persons suffering from over-exposure should be immediately removed to fresh air; if unconscious, give respiration and obtain medical help. Use of adrenaline or similar drugs should be avoided.

e. Sweep agent across base of fire using side to side motion and move to the best positions to extinguish the fire.

f. On the flight line and in open areas not inside of buildings, standby, up wind if possible, to determine if the fire is definitely extinguished. Continue to man the extinguisher until relieved by installation fire protection personnel.

g. In hangers or buildings, immediately evacuate the building and standby outside to provide information to arriving installation fire protection personnel. Ventilation of the building and safe re-entry is an installation fire protection responsibility.

4.3 SHUTDOWN.

Always discharge the Halon residue from the hose when shutting down the extinguisher. Do not use the hose as a storage container as over-pressurization and deterioration of the hose may occur.

After extinguishing fire, push nozzle lever to CLOSED position to stop agent flow. Stand by to determine if the fire is definitely extinguished. To shutdown extinguisher, rotate discharge valve lever 90 degrees to mechanical stop to close discharge valve. Pull nozzle lever to OPEN position to discharge agent residue from hose. With hose empty, push nozzle lever to CLOSED position. Coil extinguisher hose onto hose bracket and position nozzle into mount and bracket clips, see Figure 1-1 and Figure 5-5.

4.4 POST FIRE OPERATION.

Weigh tank to determine amount discharged then transport to storage or maintenance area for service. For detailed Halon temperature-pressure relationships, see Paragraph 2.2. Replace seal (Figure 7-1, 1) and wire (Figure 7-1, 2) before returning fully charged unit to use. Halon 1211 evaporates rapidly. Therefore, no cleanup is required unless moisture or a high temperature was present at the area of application. However, ventilation should always be provided to remove the vapors. If moisture or a high temperature was present, use the following clean-up procedures:

NOTE

After a discharge of Halon, allow three minutes for the agent level gauge to stabilize before making a final agent level determination.

a. After fire has been extinguished, purge area and surface with clean dry air (dust free low moisture content compressed air).

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SODIUM BICARBONATE, MIL-C-87936 7

b. Wash contaminated surface with a ten percent solution of Sodium Bicarbonate, Specification O-S-576 or one part MIL-C-87936, Type I to three parts water. Apply solution with a brush or rag. Allow solution to remain on surface until all bubbling stops. Remove solution by wiping with a damp sponge or cloth, rinsing with water.

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Figure 4-1. 150 Pound (lb.) Wheeled, Liquified Gas, Fire Extinguisher

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CHAPTER 5

INSPECTION, MAINTENANCE, RECHARGING, AND TESTING

5.1 GENERAL.

The 150 pound (lb.), wheeled, liquified gas, fire extinguisher requires ordinary care to ensure reliable operation at all…