Apollo Operations Handbook Extravehicular Mobility Unit Volume II

8/8/2019 Apollo Operations Handbook Extravehicular Mobility Unit Volume II

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T

P

APOLLO

SPACE

MSC-01372-2_F

ADMINISTRATIONN73-73947

Unclas00/99 18140

VOLUME 1_OPERATIONAL PROCEDURES_

ORIGINAL ISSUE MAY 1969REVISION 1"ff

. ,_ ,,,,,_ _ MANNED SPACECRAFT CENTER_!,_,:,_..,_]y : HOUSTON,TEXAS

JUNE 1971

MOBILITY UNITOPERATIONS HANDBOOK

EXTRAVEHICULAR


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:lTit


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Manned Spacecraft CenterCrew Systems Division

MSC-01372-2

PROJECT DOCUMENT COVER SHEET

APOLLO OPERATIONS HANDBOOKEXTRAVEHICULAR MOBILITYUNIT

VOLUME II -- OPERATIONAL PROCEDURES

CSD [OATECS0-A-789-(2) III May 1969

PREPARED BY:APPROVED:

APPROVED:APPROVED:

_0 ..r I ,C,,ANCH_/F_//_/_.L_ -T/_-/

. _Ro6ert E. Smyli_' Chief_ CSD /

NO. OF PAGES ]_6DATE i

Dct. 69q

3ept 70

June 71

PREPARED BY

J. L._ Gibson I

,iMSC FORM 15i (REV MAY 67)

R_VI_gQM_;APPROVALS RE. LETTER

BRANCH DIVISION PIIOQRAM OFFICE

Rev. TRev. IT

Rev. III


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I


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PI_!Ei:T DOCUMENTCHANGE/REVISION LOGFOE CSD ORIGINATED DOCUMENTNUMBER,CSD-A-78_(2) III

m jF_

CHG. /NO.

Roy. ILl

AUTHORITYFOR CHANGE

PAGESAFFECTED

All

BRIEF DESCRIPTION OF CHANGE

Reorganized and rewritten toaccommodate A7LB suit configurationand the - 7 PLSS configuration

END ITSERIAL N

AFFEC

Apol 1o

_TERE_D PAGES T E TYPED & DISTRIBUTED FOR INSERTIONMSC Form 892 (Rev Apr 80)


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CSD-A-789-(2) IluAPOLLO OPERATIONS HANDBOOK-EMU

_ection4.4.14.1.1

4.1.24.i.34.1.4

4.2

4.2.1

4.2.2

4.2.3

4.2.t,

4.2.54.2.6

4.3

4.3.1

4.3.2

4.3.34.44.54.64.6.1

4.6.2

4.6.3

4.74.7.i

C_T_TS

OPERATIONAL PROCEDURES ..................

PGA DONNING_ DOFFING .................

PGA Donning Procedures Before IV Use ...........

PGA Doffing Procedures After IV Use ...........

PGA Donning Procedures Before EV Use ...........

PGA Doffing Procedures After EV Use ...........

OPS OPERATIONS ......................

OPS Checkout .......................

OPS Donning Prior to Contingency Transfer ........

OPS Donning Before CMP EVA ................

OPS Activation ......................

OPS Deactivation ...................

OPS Doffing After CMP EVA ................

PLss/oPS DONNING AND DOFFING ...............

PLSS/OPS Donning .....................

PLSS/OPS Doffing in Pressurized Environment .......

PLSS/OPS Doffing in Unpressurized Environment ......

PLSS COMMUNICATIONS CHECK ................

PRESSURE INTEGRITY CHECK .................

PLSS NORMAL OPERATING MODES ...............

PLSS Activation .....................

Wet Sublimatcr Restart ..................

PLSS Deactivation ..................

PLSS RECHARGE AND FEEDWATER R_4OVAL PROCEDURES ......

Battery Replacement ...................

Page4-1

4-2

4-15

4-204-254-29

-294-29

4-30

4-32

4.-32

4-32

4-33

4-33

4-36

4-_0

4-45

4-47

4-49

4-49

4-504-5o4-524-52

BASIC DATE May 1969 CHANGE DATE June 1971 PAGE iii


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Section

4.7.2

4.7.32.84.8.1

4,8,2

.8.3i_.8.44.9

4.9 .i4.9.24.9.3

4.9.4h.i0h.lO.l

4.10.2

h.ll4.ii.i

4.11.2h.ii.3

4.11.4

4.11.5

.11.64.11.74.11.8h.ll.94. !i.i0

CSD-A-789-(2) IIIAPOLLO OPERATIONS HANDBOOK-EMU

PageRemoval of LiOH Cartridge From Stowage Container ..... 4-53

LiOH Cartridge Change .................. h-5hPURGE VALVE OPERATION .................. 4-56

Activation Procedures for Purge Valve .......... 4-56

Flow Adjustment Procedures ................ 4-56Shutoff Procedures .................... 4-56

Purge Valve Removal Procedures .............. 4-57

PRESSURE CONTROL VALVE OPERATION ............ 4-58PCV Installation ..................... 4-58

PCV Activation ...................... 4-58

PCV Deactivation ..................... 4-58PCV Removal Procedures .................. &-58

EMU INFLIGHT MAINTENANCE ................. 4-59PGA and LEVA Inflight Examination and Maintenance .... 4-59

Bioinstrumentation Inflight Repair ............ 4-64MISCELLANEOUS PROCEDURES ................. 4-66

PLSS Gas Trap Activation ................. &-66Camera Mounting on RCU .................. 4-67

BSLSS Bag to PLSS Donning ................ 4-68

BSLSS Bag to PLSS Doffing ................ 4-68BSLSS Stowage on LRV ................... 4-68

BSLSS Donning and Activation Procedure .......... 4-69BSLSS Disconnect Procedure ................ h-69Donning and Doffing Helmet Shield ............ &-70

Donning and Doffing Neck Dam ............... &-70Insuit Drinking Device (ISDD) Installation and Use .... h-71

BASIC DATE May 1969 CHANGE DATE June 1971 PAGE iv


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CSD-A-789-(2) IItAPOLLO OPERATIONS HANDBOOK-EMU

Section Psgc_

4.ii.ii OPS Oxygen Usage for Metabolic Makeup --LM and CM .... 4-74

4.11.12 OPS Bleed Down --LM and CM .............. 4-%5. EMU MALFUNCTION PROCEDURES FOR LUNAR SURFACE EVA ..... 5-1

5. I INTRODUCTION ....................... 5-]

5.2 FORMAT OF MALFUNCTION PROCEDURES ............. 5-1

5.3 MALFUNCTION SYMPTOMS FOR EMU USINGPLSS SV 706100-7 .................... 5-3

BASIC DATE May m969 CHANGE DATE June 1971 PAGE v


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acfm

AOH

BSLSS

CDR

cfm

CM

CMP

CO_

CSM

CWG

"DES" H20ECG

ECS

EMU

EV

ISDD

LEVA

FCS

ITMG

IV

IVA

kHz

LCG

LiOH

LM

MSFN

ABBREVIATIONS

actual cubic feet per minuteApollo Operations Handbook

Buddy Secondary Life Support System

Commander

cubic feet per minute

command module

command module pilot

communications

command/service module

constant wear garment

descent water

electrocardiogram

environmental control system

extravehicular mobility unit

extravehicular

insuit drinking device

lunar extravehicular visor assembly

fecal containment system

integrated thermal micrometeoroid garment

intravehicular

intravehicular activity

kilohertz (thousand cycles per second)

liquid cooling garment

lithium hydroxide

lunar module

Manned Space Flight Network

BASIC DATE May 1969 CHANGE DATE June 1971 PAGE vi


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C SD -A-789-(2) it._APOLLO OPERATIONS HANDBOOK-EMU

OPS

PGA

PHA

PLSS

pos.

POS

press.

psia

psid

psig

PTT

RCU

rcvr

SC

sel.

SSC

SW.

TLSA

TM

UCTA

UTS

vlv

VOX

WMS

xduc e r

xmtr

ZPN

oxygen purge system

pressure garment assembly

pressure helmet assembly

portable life support system

position

primary oxygen system of PLSS

pressure

pounds per square inch absolute

pounds per square inch differential

pounds per square inch gage

push to talk

remote control unit

receiver

spacecraft

selector

space suit communicationswitch

torso limb suit assembly

telemetry

urine collection and transfer assembly

urine transfer system

valve

voice operated transmitter

waste management system

transducer

transmitter

impedance pneumograph

BASIC DATE May 1969 CHANGE DATE June 1971 PAGEJ-_-_-

t I E


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CSD-A.789-(2) IIIAPOLLO OPERATIONS HANDBOOK-EMU

AT change in temperatureAP change in pressure

BASIC DATE May 1969 CHANGE DATE June 1971 PAGE viii


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,.,


FOREWORD

This handbook, sections h and 5, of the Apollo Operations Handbook (AOH)series, is bound separately as Volume II and pertains only to the Extra-vehicular Mobility Unit (EMU). Volume I of the AOH contains sections l,2, and 3, and pertains to the description of the EMU.

The operational procedures are written specifically for Apollo J-missionEMU hardware and will be superseded by a mission-oriented checklist whichis reviewed by Crew Systems Division (CSD) for unique hardware procedures.Both the operational procedures and the malfunction procedures will be up-dated for the mission.

This handbook is composed of two major sections:

a. Section 4 provides a step-by-step operational procedure for activationand deactivation of EMU subsystems.

b6 Section 5 provides emergency procedures for critical EMU symptoms andcontinuing diagnosis during EVA and post-EVA to determine the EMUmalfunction (to be supplied).

Insuiries concerning this handbook should be addressed to Crew SystemsDivision, Systems Engineering Branch, MSC, mail code EC2 or to CrewProcedures Division, EVA/IVA Procedures Branch, mail code CG3.

BASIC DATE May 1969 CHANGE DATE june z971 PAGE i_


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5.1.2

5.1.3

5.l.h

5.1.5

SECTION 5

EMU MALFUNCTION PROCEDURESFOR LUNAR SURFACE EVA

INTRODUCTION

The malfunction procedures encompass the recognition, diagnosis,and corrective action for system malfunctions. In most cases,the crew is alerted to a malfunction condition by indicatorsand gages. The malfunction analyses do not contain solutions;such solutions are found in mission rules. The procedures inthis section cover significant single failures and are notintended to replace the detailed failure modes-effects analysespublished in other documents.

The malfunction procedures are for use during Apollo missionswhere an EMU having an SV 706100-7 PLSS will be worn. Theprocedures have been classified as (1) emergency, (2) EVA,and (3) post-EVA. (The post-EVA period commences when theLM cabin pressure reaches 3.5 psia.)

For maximum safety, all emergency procedures should be memorizedso action can be taken immediately when the malfunction occurs.The EVA procedures do not need to be memorized since they areprovided through voice communications except for steps whichcover EVA procedures for loss of voice communications.

The post-EVA procedures are designed to extract a maximum amountof information on any observed anomaly since the PLSS/OPS andassociated hardware would not normally be returned to earthfor postflight analysis. The emergency procedures are devisedso that telemetry is not used because telemetry data may notbe available to the crewman. (Telemetry should be employedto aid the emergency procedures, however, if it is possibleto do so.)

The procedures and remarks are representative of a nominal EMU.Values sad quantities, which are characteristic of an individualEMU and which can be established only be testing the actualEMU to be used in the flight, are underlined in each case.

BASIC DATE May 1969 CHANGE DATE June 1971 PAGE 5-1


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5.2.2

FORMAT OF MALFUNCTION PROCEDURES

MalfUnction procedures are presented in the format of logic-flowblock diagrams. Diagram blocks represent procedural steps.Those blocks outlined with double lines and containing capital-ized statements indicate system failures. Within blocks_ state-ments preceded by black dots ( ) indicate required actions.

The malfunction procedures are presented in three columns headedSYMPTOM, PROCEDURE, and REM__qKS. A description and use of eachof these columns is as follows:

SYMPTOM The primary purpose of the symptom columnis to give a first indication of the mal-function as received by either the crewor telemetry. The possible causes of themalfunction are indicated in this column.

PROCEDURE The procedures column presents a step-by-steplogic-flow diagram of actions and decisionsused to isolate or correct a malfunctionsymptom. The remote-event number symbolsare used to reference items to the REMUScolumn or to refer to other procedural steps.

REMARKS This column will include the following in-formation:

a, Amplifying additional remarks relatedto the symptom, such as relief valvevents at ____psid.

b. Amplifying remarks which relate to adecision and/or action items.

C, Explaining resultant system status oroperational capability after a failurehas been identified.

d. Cautioning or warning, as necessary,to cover conditions that may existbecause of a failure

BASIC DATE May 1969 CHANGE DATE June 1971 PAGE 5-2


89/134

CSD-A-789.(2) IIIAPOLLO OPERATIONS HANDBOOK-EMU

5.3 MALFUNCTION SYMPTOMS FOR _MU USING PLSS SV 706100-7

Symptom Page

EMU 1 - Warning tone ON and low vent flow flag "P"(vent-P) .......................... 5-5

EMU 2 - Warning tone ON and low PGA pressure flag "0"(P_S - "o" ) ......................... 5-7

_u 3 - Warning tone ON and high 02 flow flag "O"(02-"0") . .. ... .. ... .. .. .. ... .. ... . 5-10

EMU 4 - Warning tone and low feedwater pressure flag "A"(H20-"A") while using primary feedwater .......... 5-12

EMU 5 - Warning tone and low feedwater pressure flag "A"(H20-"A") while using auxiliary feedwater ......... 5-14

EMU 6 - Warning tone with all warning flags CLEAR ...... 5-16

EMU 7 - PGA pressure gage 4.0 psid ............. 5-20

EMU i0 - Loss of pump noise ................. 5-21EMU ii - Inadequate cooling of crewman ............ 5-22E_fU 12 - EVA-I loses voice from MSFN (EVA-I has

voice from EVA-2) ..................... 5-24

EMU 13 - EVA-1 loses voice from MSFN (EVA-1 doesnot receive voice from EVA-2) ............... 5-25

EMU 14 - EVA-1 loses voice from EVA-2 (EVA-1 hasvoice from MSFN) ...................... 5-27

EMU 15 - EVA-2 loses voice from MSFN (EVA-2receives voice from EVA-l) ................. 5-29

EMU 16 - EVA-2 loses voice from MSFN (EVA-2does not receive voice from EVA-l) ............. 5-30

EMU 17 - EVA-2 loses voice from EVA-1 (EVA-2has comm. with MSFN) .................... 5-32

EMU 18 - Loss of voice comm. wit_ EVA-l, EVA-2,or MSFN (two-man EVA) (comm. restoration procedure) .... 5-34

EMU 19 - EVA loses voice from 1/4 ............... 5-35

BASIC DATE May 19_ CHANGE DATE June 1971 PAGE.5-3


90/134

CSD-A-789-(2) iT rAPOLLO OPERATIONS HANDBOOK-EMU

Symptom PageEMU 20 - LM loses voice from EVA ............... 5-37

EMU 21 - GT8168P/GT8268P PGA pressure 4.0 psid ....... 5-40

EMU 23 - GT8182P/GT8282P PLSS 02 pressure abnormal(no warning tone) ............. ........ 5-41

_MU 24 - GT8110P/GT8210P feedwater pressure ii___F (maximumdiverter valve position) .................. 5-4628 - GT8140C/GT8240C PLSS battery current

>3.___OOA(no warning tone) .................. 5-47EMU 29 - GT8140C/GT8240C PLSS battery current


91/134

CSD-A-789-{'2) TrrAPOLLO OPERATIONS HANDBOOK-EMUI PROCEDURE REMARKSSYMPTOM I

EMU 1 IiI

and low vent j@ ICY cle FANflow flag "P" _ fan 0FF/ON SWITCHED(VENT-P) Low vent flow OFF INAD-

I fla_ CLEAR %'ERTENTLYafter i0 seciL__

Actuating Jrarameter: JVent flow5 seePossible oauses:l

a. Fan OFF or i

degraded jb. Battery

degraded Jc. High PGA AP i

d. Low vent Jflow sensorfailed on or Ihifted set

point je, Flow re-

striction In FPLSS ventloop JII

lIIIIIIIIIIIII

EMERGENCYROCEDURE

@ Actuateb .. OPS

_Open_-_ purge valve:YES to LOW FLOW

h--_ GTSlhOC/GT8240C PLSSbattery cur-rent >3.0Aor


92/134

SYMPTOM

CSD-A-789-(2) titAPOLLO OPERATIONS HANDBOOK-EMU

PROCEDURE REMARKSPOST-EVAPRUCEDURE (Continued)

__J LOW vent flaw sensor check

0. RepressurCze 124 PLSS 0 2 - OFF OPS 0 2 - OFF Doff helmet and gloves Disconnect OPS and

pbrge valve Connect blue LM ECS and

red PGA gas connectors Connect red LM ECS and

blue PGA gas connectors Activate ECS


93/134

CSD.A-789-(2) T'r[APOLLO OPERATIONS HANDBOOK-EMU

SYMPTOMEMU 2

Warning toneON _ud lowPGA pressureflag "O"(PRES - "O" )

Actuatingparameter:

PGA pressure3.4 psla andshuT. off 0PS

II1q _ pressure

integrity check

Verify purge vlv - CLOSED OPS 02 - OFF@ PLSS 02 - OFF

Integrity all right

NO

EVA4-_ Verify PGApressure gage andGTSI68P/GT8268PPGA pressure>3.10 psla

mYES

mwB_PROCEDURE

POST-EVAPROCEDURE

!

To step 6next page

To step 7next page

REMARKS

OFS regulatedat 3.7 +- 0.3 psla,

BASIC DATE May 1969 CHANGE DATE JUNE1971 PAGE 5-7


94/134

SYMPTOM

BASIC DATE

CSD-A-789-(2} 1T1"APOLLO OPERATIONS HANDBOOK-EMU

PROCEDURE REMARKSPOST-EVAPROCEDUREContinued)

C>J@ PGA/PLSS Press.

Integrity Check

Disconnect OPS PLSS 02 - ON,

then OFF

Integrity all right

q PGA Press.

Integrity Checki

Connect ECS !to PGA I

DisconnectPISS Hoses

Integrity all right

NO

PGALEAK

FiJi DEGRADED PRESSURE{ REGULATOR

YES

RECORD GTSI68P/GT8268P PGA PRESSURE

OR CONNECT BLUE PLSS

GAS CONNECTOR TOOPS PRESSURE REGU-LATOR CHECKOUT

STOWAGE PLATEPISS 0 2 - ON

RECORDGAGE PRESSLU_E

PI4;S O.,Y h:,

qu BJF, i tyindicatorshows t'ech_r_c N(]--,..j

PiSS 0 2PRESSUI_E CO_40NXDUCER FAILED

DoffPLSS

LEAKBETWEENOPS SHUTOFFVLV. ANDPGA

YES LEAKBETWEENPLSS 02[51iUT-OFYVAL%_ ANDPGA.

YES"_"1

Pressurize02 ventilation loop

_Depress blue PLSS gasconnector to vent PLSS

Release blue PLSS gasconnector

PLSS 02 - ON, thenOFF after 5 min

Depress blue PLSS_Bs connectorVerify PISS 0,, flow

NO

RechargePLSS 02

FIZZ C 2quantity !indicator I< gage {-zero ] YES

NO

FLSS 02

JI Rechmrge {

PISS O 2 i

I, PRESSURE PGU-LATOR FAILEDGLanCED

GTS182/GTB282P_S ....

I NO 02 pressure YES{'@"" _hows recharge i PISS 02

i ., L QUANTITY [NDI-j CATOR FAILED'-------e_To step 26 i IT

next p_e J To step 22_next page

May 1969 CHANGE DATE

If PISS Op quazLtJtyinsufficient, per-Iorm integritycheck with EC$.

JUNE19"/1 PAGE 5-8

ll


95/134

CSD-A-789-(2)APOLLO OPERATIONS HAND8OOK-EMUI

SYMPTOM _ PROCEDUREJ POST-EVAPROCEDUREContinued)

IIIIIIIIIIIIIIIIIIIIIIIII

BASIC DATE

i2_ yE_ 2__e Pressurlze

GT8182P/GT8282F 02 vent loopPLSS 02 pressurestable 50 rain : PISS gasconnectors toafter recharge be stowed in

I stowage plates PISS 02 - ON

LEAK UPSTREAM OF iPIZS 02 SHUTOFF IVALVE

i

GTB182P/GTB282PPLSS 02 pressuredecay after 5m_nutes

NC

YES

MAY 1969

.Piss>_oApressure verifi-cation

PISS 02 - OFF Connect bluePLSS gas connectorto OPS re_ulatorpressure checkoutstow_e plate PLSS 02 - ONCheckout gage YESpressure


96/134

CSD-A-789-(2) T'I'I"APOLLO OPERATIONS HANDBOOK-EMU

SYMPTOMEMU 3

PROCEDUREEMERGENCYPROCEDUREI

Warning tone [L_ and high0 2 flow

! flag "0"(o -"o") I

Actuating I

parameter: IPISS 0 2 flaw>0.50 to I0.65 Ib/hrfor Z5 sec [IPossible causes: [a EMU leak

b. Primary 02presgureregulatorregulatinghigher than IRV crackingpressure

c. High 0 2 flow Jsensor failed III

IIIIIIIIIIIIII

BASIC DATE

rI_Apress gage w


97/134

SYMPTOM

IIII

CSD-A-789-(2) ZIIAPOLLO OPERATIONS HANDBOOK-EMU

i

PROCEDUREPOST-EVAPROCEDURE(Continued)

REMARKS

f PLSS 02 a,uLn-

Q@ PGA/PISS

Pressure integritycheck

Disconnect OPS PI_S 02 - ON

then 0F_

Integrity all right

J PGA press.

integrity check

Connect ECSto PGA

DisconnectPLSS hoses

Integrity all right

PGALEAX

I.'

LEAKBETWEEN

J 0PS SHUTOFFi VALVE ANDPGA!

I YES

l

HIGH O 2 FLOW 'SENSOR ANDI_A GASCONNECTOR

!

, YES

i_ WasGTSI68P/

i i OTB268P[ yGA pre_s.I ,b.6 psid

i.$ NO

PRIMARY 0 2 PRESS.REGULATOR REGULATINGHIGHER THAN PRVCRACKING PRESS. ANDPGA PRESS. GAGEFAII_D

J

I

YES

HIGHO 2USAGE

tlty insufficientperform integritycheck with ECS.

BASIC DATE May 1969 CHANGE DATE JUNE1971 PAGE 5-II


98/134

CaD-A-789-(2) ]I[APOLLO OPERATIONS HANDBOOK-EMU- I

SYMPTOM IEMU-4 JI(p__ltonoII

and low feed-water pressure

flag "A" (H2C-"A" ) whileusing primaryfeedwater

Actuating Jparameter:

Feedwat er pres- j

sure


99/134

SYMPTOM

CSD.A-789-(2) TI-[APOLLO OPERATIONS HANDBOOK-EMU

PROCEDUREi

POST-EVAPROCEDURE

BLOCKAGEAT PFJMABYFEEDWATERBLADDEROUTLET

L YES

[l hl PEIMARYFEEDWATER

l RESE_VOZ_DEPLh_ED

YES

l[12J@ Pressurize_ backslde offeedwater blad-der from 0 2vent loop

@ Connect LMwaste managementsystem to PI_Sprimary ventconnector Close auxiliaryHrO shutoff andrelief valve Hosesdisconnectedfrom FGA PiSS 02 - ON

Feedwater expelledthrough prlmsry

Ifeedwater ventconnector

J Connect _,1

waste mgmt. systemto drain connector

Drain H20 or02 expelledfrom H20 drainco_ector

NO

JWATERsEPARATORBLOCKED

REMARKS



100/134

CSD-A-789-(2)APOLLO OPERATIONS HANDBOOK-EMUSYMPTOM PROCEDURE REMARKS

_r_-_ EVA PROCEDURE

Warning toneand low feed-water pressttreflag "A" (H20-

i"A") whileusingat._i li _-'yfeedwater

Actuatingparameter:

_eedwaterpressure


101/134

CSD-A-789-(2) ]IIAPOLLO OPERATIONS HANDBOOK-EMUI

SYMPTOM J PROCEDURE REMARKS

I jLOW

FEEDWATEBPRESSURESWITCHFAILEDl

lI J_Lo_AoEi

j BETWEENLADDERI AND

J FEEDWATERPRESSUREXDUCER

IiIII.IIiIIIIiiIIlIiiIiiIll

POST-EVAPROCEDURE

J

iYES

Pressurize backsideof feedwater bladder from02 vent loop Connect IMwastemanagement system to PIZSauxil_ary feedwater ventconnector Hoses disconnectedfrom PGA PIZS 02 - ONFeedwater expelledthrough auxillaryfeedwater vent connector

NO'

JBOTH

FEEDWATERRESERVOIRSDEPLETED

YES

15_@ ConnectI/4wastemanagementsystemto PLSS H20drain

, connector

Drain H20or 02expelled fromPLUS H20 drainconnector

SEPARATORBLOCKED

BASIC DATE MAY 1969 CHANGE DATE JUNE1971 PAGE 5-15


102/134

CSD-A-789-(2} I-I1APOLLO OPERATIONS HANDBOOK-EMU

1SYMPTOM j PROCEDURE REMARKS

- 6 EMERGENCYPROCEDURE

Warning tonewith all warn-ing flagsCLEAR

Actuating Ipars.met ers:Vent flow I5 sec

PGA pressure I0.50 to 0.65 Ilb/hr for>5 see I

Feedwat er Ipressure


103/134

CSD.A-789-(2) lII[APOLLO OPERATIONS HANDBOOK-EMU

J PROCEDURESYMPTOM jJ EVAPROCEDUREContinued)IJ 17J LOW FEED-J WATER PRESSUREFLAG FAILEDI . CLEAR

IIljJ H2O diverterJ valve - _N. Open prlm_yI H20 shutoff _drelief valveJ Wait h rain

before cKanglng iJ 20 diverter Ij valve position

I j _wFEED!J WATER PRESSURE

FLAG FAILEDJ CLEAR

I J.._oJ diverterJ valve - M-IN. Open auxil-j iary H20 shut-off and reliefI valve Wait 4 mlnJ before cKangingH20 diverterI valve position

iiIIIIIIItII

BASIC DATE

JGT8110P/GT8210Peedwat er pressure50 F andrising

!I TONE FAILED(CAME ON

i WHEN THEREi WAS NO CAUSE)IL

FEEDWATERPRESS. FLAGFAILED CLEAR

JGO to step 3,_MU 4, page 5-12

[email protected]

2_ Auxiliary YESH20 shutoff andrelief valve -OPEN

61 FEED-WATERPRESSURE -4-FLAGFAILEDCLEABQI

_@ If_ditionalcooling isrequired,activateBS LES

NO

JGTSIIOP/GT8210P

feedwater press.50 F andrising

2_ Go tostep lO,LMU 5,page 5-1h

MAY1969 CHANGE DATE JUNE1971

REMARKS

Actuation ofthe OPS andopening of thepurge valve toHIGH flow mayalso be usedif BSI_S isnot carried.If PLSS 02valve .re-mains openduring purgemode, POS con-sumables may bedepleted.

PAGE 5-17


104/134

SYMPTOM--_I

CSD-A-789.(2) mAPOLLO OPERATIONS HANDBOOK-EMU

PROCEDUREEMERGENCYPROCEDURE

PGA pressuregage


105/134

CSD-A-789-(2) ITIAPOLLO OPERATIONS HANDBOOK-EMU

SYMPTOM PROCEDURE REMARKSI_ J EMERGENCY PROCEDURE

PLSS 0 2 iquantityindicatorabnormal

read'n6 J

Possible Jcaus es :a. PI_s 0 2 J

quantity jndicatorfailedb. PISS 0 2 I

pressure jXducerfailed

c. PIA3S regu- Jlator 02

regulatin_ jUt of spee

d. EMU leak I.....e. High 02 usage III

iiIIIIIiIIilIII

j IPGA pressure4.0 YESpeid or high02 flowfla_ "0"

NO

_ag GT8182P/GT8282Pree with PLSS 02

quantity indicator

L NO

RechargePISS 02

ctuate!OPS

If PGAI pressure

was 4.0 paid J@'PLSS 0 2 J_._2Je- O_J

zlPLSS 02

PRESSURE REGU-LATOR FAILED

iPLSS 02quantityindicatorJ shows re-charge

t!_oPLSS 0 2

_UANTZTY INDI-3ATOE FA/LED

EVA PROCEDURE

IYES

'mR'

Go to step 5,_2, page 5-T

POST-EVAPROCEDURE

7'_@ Recharge

PiSS O2

YES _GT8182P/T8282PpLSS 02pressureshowsrecharge

t YES

PLgS 02 QUANTIT_ZNDICATOR WASIN ERROR

'l_ GT8182P/IGT8282P PISS02 PRESSUREFAI LED

LEAKBETWEEN PLSS02 SHUTOFFVALVE ANDHIGH O_ FLOWSENSOR _

NOi

I I

4--

j OTSlB2P/GT8282P PISS

YES 02 pressureshows recharge

12_ PISS 02PRESSURE XDUCERFAI LED(C0_ON XDUCER) iI

15_ PISS 0 2

.._ shutoff valve -OFF

17J GT8182P/

j GT8282P PLSS 02pressure orPISS 02 quan-tity indicatorstable after

YES 50 minutes

1;0N _UPSTREAM OFPISS 0 2 SHUTOFFVALVE

1600 Btu/hrmetabolicload Dlusallowable

leakageCObBles a_rox-imately 0.25 ib/hr 02,Without makeup02, this willreduce PGApressure to3 psia Inapproximately3 minutes.

OPS regulates

at 3-7 +-0,3 paid.

BASIC DATE. May 1969 CHANGE DATE JUNE1971 PAGE 5-V; : ,.


106/134

SYMPTOMEMU 9

_2PGA pr es s',.u-egage>_.0 paid

Possible causes:

a. Regulatorfai Is openor shiftsset point

b. PGA pressuregage fails

BASIC DATE

IIIJ_I

CSD.A.789.(2}/-FIAPOLLO OPERATIONS HANDBOOK.EMU

PROCEDUREEMERGENCYPROCEDURE

,, ?igh 02 flow @ Actuate OPS PiSS 02 PRESS.

fla_ "0" i----_(after 5 sec) YES : Close PLSS REGULATOR FAILEDor PLSS 0 2 02 shutoff sETOPENpoINTORHIFTEDquantity valve ifindicator possibledecreasing ....._

Does GT8168P/GT8268P SHIFT IN PLSS 02PGA press, agree with _PEA press, gage YES REGOYATED PRESSURE =

N0 LPOST-EVA PROCEDURE

I' !,6j. connect blue PLSS 71

gas connector to GTSI68P/GT8268POPS regulator "-_checkout stowage PGA PRESS. FAILED

i plate IDoes OPS gage agreewith PGA gage YES

_oN

PGA PRESS.GAGE FAILED

REMARKS

PLSS 02 pressureregulator regu-lates to h.0 paidmaxizr_m to PGA.PGA pressure reliefvalve cracks at5.0 to 5,75 paid.

If additional mobil-ity is needed,open purge valveto reduce PGApressure to>3.h paid.

An additionalindication ofhigh PGA pressurewould be reducedPGA mobility.

May 1969 CHANGE DATE JUNE1.971 PAGE 5-ZO

11r


107/134

SYMPTOMEMU I0

Loss of p_pnoise

Possible "causes :

a. Pump switchOFF

'b, Power failure

,c. Cpen RCUconnection

d. Pump failure

BASIC DATE

CSD.A-789.(2) 13]APOLLO OPERATIONS HANDBOOK-EMU

PROCEDUREEMERGENCYROCEDUREI

J lJ Receiving

F. sldetone

Actuate OPSand purge valve-

J LOW FLOW andactivate BSLSS

IIIIIINmm_mI

{ Is RCU connection. properly mated

NO

OPEN _CU CONNECTION

YESM,

Pb]4P SWITCHED! OFF

F m wEVA PROCEDUREGTS___OC/

Pump switch -----@- GTB2b0C ----e-or_ YES PiSS battery KEScurrent


108/134

CSD-A-789-(2) [[/APOLLO OPERATIONS HANDBOOK-EMUI

SYMPTOM j PROCEDUREMU II EMERGENCY PROCEDUR[

Inadequatecooling ofcrewman(no wP_rn i ngtone, nowarning flag)

IPossible causes: Ja. Thermal leakb. _=p degradJ

tion or flow IIestrictione. oas m trans-J

portllnewater j

d. Primary ware rshutoff andrelief valveclosed

e. Auxiliary Jwater shutoffJand relief Ivalveclosed

f. Waterseparatorblocked

g. Depletedprimaryfeedwaterreservoir

h. Depletedauxiliaryfeedwaterreservoir

i. Blockagebetweenbladderandsub limator

II

wr f,.2opalve - idiverterMAX.@ V_-rify pump

J switch - ON,l'1 Is primary

H20 shutoffand reliefvalve open

iNO

fT j@ H20diverter valve-MIN. C ,_ ,, .:n H 20

shutoff andrelief valvethat inadver-tently wKsclosed

J 'Wait h_ minutes

j before changingH 20 diverter[ _J valve position

!

I

YES [

Is thef,' F.MU operating !YES

r on auxili_y "_feedwater it

U !,4[,_"-5_

I see i!

[Cooling improve_!YES'within 3 minutes! ''_i -- i

NOr

18]@ If additional;cooling is required,activate BS_S _i

iI

.mLO_

PEEDWATEHPRESS. SWITCHFAILFD

A Is auxiliary

H20 shutoff andre]_ef valve opez

YES i NO

J GAS INT R._S P 0RTWATER LINE

F""""'"" .......

J LI[ _ GT8170T/GT8270T

02 temp _..Oe F,GTSI96T/GT8296TLCG H2_ AT (50 F,

i and GTSI5 hT/Gq _254TLCG H20 tamp .50 F

(h20 d_vt'rter inMAX, COOLING )

I _C

C_'_J.gC;T,T_:96T] _ cc,o_;_FmWI LCG _pO AT >'I F _ RATE


109/134

CSD-A-789-(2) TTT: APOLLO OPERATIONS HANDBOOK-EMUSYMPTOM II PROCEDURE REMARKS

EVAPROCEDUREContinued)

BASIC DATE

IIIIIIIIIIIIIIIIII LIIIIIIIIIIIIIIIIIII

EXCESSIVETHERMAL LEAKINTO EMU

Check LEVAposition, latchand interfacecollar, and adjustas required

Cooling improved

N

mD_

i INSULATIONHEAT LEAK !I

YES

LEVAHEAT LEAK

MAYI969 CHANGE DATE JUNE1971 PAGE 5-2B


110/134

SYMPTOMEMU12 J

EVA-I lose8voice fromMSFN (see"Additionalconditions"below)

Additional

conditions: Ji. Dual EVA

2. EVA-I has J70iC_ from

EVA-2 I

Possible causes: J

a. I,M or MSFN Jfailed

b. EVA-I "A" Jvolume con-

trol turned Joo low

c. EVA-I R/T JelaF K-Ifailed

closed in Jbackup mode

d. Triplexer "A" Isection failedl

e. EVA-I "A" re- lceiver RF

section failed I!f. EVA-I tri- "

plexer "A" Jsection, "A"receiver, orR/T relay K-I lfailed open Inl

both modes {g. EVA-1 "A" re-

ceiver audio Jsection failed I

h. Recelver "A" IRCU volume

control failed IIIIIIIII

BASIC DATE

CSD.A-789-(2) ITlAPOLLO OPERATIONS HANDBOOK-EMU

Does EVA-2 re-ceive voice

J from MSFN

FNI_ OR _I_FAILED

71EVA-I "A"VOLUME CONTROLTUNNED TOO LOw

YES

I

Y_

m_mmmnPOST-EVAPROCEDURE

May 1969

PROCEDUREEVAPROCEDURE

Does kWA-Ihave side- YEStone

INO@ EVA-I set

RCU "A"volume con-trol to max.

I Set EFA-Imode sel. SW.at "B"

Set EVA-2mode sel.SW at "A"1

Does EVA-2YES receive

voice fromEVA-I

i _No

,__]EVA-I R/T RELAY' K-I FAILED OPEN

IN BOTH MODES,OP TRIPLEXER "A"SECTION FAILED

F

iii++AR,TEl LAy K-I FAIL-ED CLOSED IN

-e.J MODE "B", OR"A" RECEIVERRF SECTION

i FAILED

! I

IF

!101i Swap EVA-I RCU

with EVA-2

EVA-I receive on"A" receiver

0

EVA-I "A" RECEIVE_FAI LED

ii

CHANGE DATE

RECEIVER "A""--'@" RCU VOLUMEYES CONTROL FAILED

i!i

REMARKS

JUNE1971 PAGE 5-24


111/134

SYMPTOMEMU-13:

EVA-I losesvoice frc_MSFN (see"Additionalconditions"below)

Additionalcondltlons:

i, Dual EVA

2. EVA-I doesnot receivevoice fromEVA-2

Possible causes: J

a, Comm. Icarrierfailed

b, RCU mode Jselector "A"section Ifailed

c. HCU cable Jfailed

d. Primary Jdual e_.

regulator Iailed

e. PLSS electrl- Jcal umbilleal I

failed If. Ant enn& or

triplexer Jolmmon portfailed

g, J-3 Pin 8 I

fal led j

IIIIIIIII

J ,,

CSD-A-789-(2) T[lAPOLLO OPERATIONS HANDBOOK-EMU

PROCEDUREEVA PROCEDUREI

IDoes _A-I have

I sldetone y_I ii J_VA-I set mode

sel. SW, in "A"

I positionc_m. restor_ ij withM_ i----_ES_o

lls=s_,o_Ition "B"Does EVA-I hear' I, siaetone _J y----_"_

BCU MODE SELECTORDUAL CONTACT "A"WAFER FAILED

EVA-I mode sel. SW.in pea. "B '_

EVA-2 mode sel. SW.In pos. "A"

REMARKS

NO

@ EVA-I PLSSfan - OFF>_ sec

i EVA-I hear' warning Tonet

EVA-I lowvent flowflag "P"while fanis OFF

YES

To step 16next I)age

Y_S Ii

;_]RCU MODE SELECTOR "A"WAFER FAILED

RCU J-3PIN 8

i FAILED

NO

Jmmm_ Im N

To step 13 To step 18next page next page

BASIC DATE May 1969 CHANGE DATE JUNE1(_71 PAGE 5-25 ,


112/134

SYMPTOM

BASICDATE

CSD-A-789-(2)1-1APOLLOOPERATIONSANDBOOK-EMU

PROCEDURE REMARKSPOST-EVAPROCEDURE

rI __1 .@_Swap EVA-I

CO_. c_rrierwith _A-2 I

Comm. YESrestoredL

NO

,r

SUIT ELECTRICALHARNESS FAILED L

I_@ EVA-Iconnect to[14 electricalumbil_cal

Comm. restored "_. YES

Swap EVA-IOPS withEVA-2

Comm. YESrestored

NO

EVA-I TRIPLFX-ER COMMON PORTFAILED

- _A-ICON_.C_Ri_FAIL_

Swap EVA-IRCU withEVA-2

Co_. re-stored in mode YESsel. SW.pos. "A", "AR" 4and "B" J

NO

ECUMODE SE-LECTOR DUALCONTACT "A"WAFER FAILED

:l..._ PRIMARY DUAL/CO_4. REGU-LATOR FAILED

PLSS ELEC-TRICALUMBILICAL

! FAILED

91 'ifEVA-I ANTENNAOR CABLE FAILED

May 1969 CHANGE DATE JUNE1971 PAGE 5-26


113/134

SYMPTOMEMUi4

EVA-I losesvoice from iEVA-2 (see "Ad-:ditional condi-tions" below)

Additionalconditions:

I. EVA-I hasvoice fromMSFM

2. Dusd EVA

Possiblecauses :

a. EVA-I B/CvolUme con-trol set toolow

b, EVA-I "B"receiveraudiosectionfailed

c. EVA-2 P_switch wasOFF

d. EVA-2 R/Trelay K-2failedclosed in"A" position

e. FM linkfailed

f. Audio sec-tion ofsignalprocessorfailed

(Continued onnext page)

PROCEDURE

CSD-A-789-(2) 1-rtAPOLLO OPERATIONS HANDBOOK-EMU

EVAPROCEDUREII

_A-I set RCU ii/C vol_e to I VOLUME coNTROL WASMAX, TURNED _0 _W

l Co_. restored

I NO _S

I Does MSFN hear _A-I "B"A-2 and re-ceive _ from YES NCVR. A_IOSECTION FAIL__A-2I

I 61J Does MSFN re- _ _A-2 switch

ceive _ but YES PTT O_/_IN

J no voice from_'A-2 Co_. restored YESi I ISW. - pos, "B" i MOM from _IN.

I YES I _srestored J I COCo restored _ICo_, i iI 1_ _I _

_A-2 R/T RE-

l _Y K-2 FAIL_CLOSED IN "A"POSITION

FAIL_L,................------Totep 15 To step 12

i next page next page

IIIIIIII

EVA-2 PTTSWITCH WASOFF

|iiiiili_i

REMARKS

BASIC DATE May 1969 CHANGE DATE JUNE1971 PAGE. 5-27


114/134

SYMPTOMIIPossible causes: I

(continued) !_. PTT circuit

in EVA-2 RCU iailed

h. _ circuit Iin EVA-2PLSS failed

i. EVA-2 com. Icarrier

failed ItIIIIIIIIIIlIllIIIlltllI

CSD-A-789-(2) 15_APOLLO OPERATIONS HANDBOOK-EMU

PROCEDUREPOST-EVAPROCEDURE

,I

J Swap EVA-2RCU withEVA-I

Co_,restored

NO

PRIMARY VOXCIRCUIT INEVA-2 PLSSFAILED

YES

MAIN CONTACTSOF _ SWITCHIN EVA-2 RCUFAILED

Swap EVA-Ico mm . ear-rler withEVA-2

Comm.restored

NO

AUDIO SECTIONOF SIGNALPROCESSORFAILED

iiJil EVA-2 COM_.

----m _ CABRIEH FAILEDYESi

REMARKS


71!


115/134

SYMPTOMJEMU5 JI

_IEVA-2 loses Jvoice from

MSFN (see "Ad-itional con-ditions" below)

Additional Jconditions: Ii. Dual EVA2. EVA-2 re- J

celves voicefrom EVA-I j

Possible causes: ia. "A" volume "

control Jurned toolow or failed

b. LM or MSFN Jfailed

c, EVA-2 "A" re- Iceiver RFsection Jfailed

d. EVA-2 "A" Jsection tri- |plexer failed a

e, EVA-2 "A"receiver Jfailed II[III

IIIIIIII

CSD-A-789-(2) I'17APOLLO OPERATIONS HANDBOOK.EMU


2J ,.Does EVA-I re- @JEVA-2 setceive voice _ RCU "A"'vol-ume controlfrom MSFN YES to MAX.

N0

LM OR MBFNFAILED

C_mm. restored

_l @ EVA-2 set

mode sel. SW.at "["

Does EVA-2have sidetone

J NO

EVA-2 "A" RE-CEIVER RF SEC-TION FAILED

YES

YES

YES

EVA-2 "A" VOL-UME CONTROLTURNED TOO LOW

EVA-2 setmode sel,SW at "B"EVA-I setmode sel,b-"_,at "A"

J EVA-I has co_m.J with EVA-2

NO

JEVA-2 "A" SEC-TION TRIPLEXER

I FAIL_D

l

Swap EVA-! RCU withEVA-2

EVA-2 co_m. with MEPNrestored

NO

EVA-2 "A" RE-CEIVE_ FAILED

POSTEVA PROCEDURE

YES

EVA-2 RCU "A"VOLUME CIRCUITFAILED

REMARKS

BASIC DATE /May 1969 CHANGE DATE JUNE1971 PAGE 5-29 "


116/134

SYMPTOMEMU16i j'

EVA-2 losesvoice fromMSFN (see "Ad-ditional condi-tionS" below)


i. Dual EVA

2. EVA-2 doesnot receivevoice fromEVA-I

?osslhle causes:

a. RCU mode Iselector

dual contact Iailed

b. RCU mode Ielectorswitch "A"

wafer failed Ic. RCU P-3 pin 8

failed I(Continued onnext page) III

IlIII[IIlIIIIII

CSD-A-789-{21 LUAPOLLO OPERATIONS HANDBOOK-EMU

PROCEDUREEVA PROCEDUREII

Does EVA-I have

sldetone YES

I EVA-2 set mode RCU MODE SEL.i sel. SW. in DUAL CONTACTA" position "A" WAFER

I FAILEDSFN co:me.restored YES

I EVA-2 set EVA-2 mode Imode Bel. SW. sel. SW,

to "B" to "B"@bEVA-I mode sel

Does EVA-2 SW. to "A"hear sldetone

EVA-2 Fan RCU MODE SEL.OFF >5 sec SW. "A" WAFERthen ON FAI LEDEVA-2 hearwarning tone

YES I

]NO

EVA-2 lowvent flow _ RCU P-3 PIN 8 i :warning J NO FAILED Iflag "P" I --I

YES .i,

i

_rTo step 10 To step 17 To step 12next page next page next page

May 1969

REMARKS

BASIC DATE CHANGE DATE JUNE1071 PAGE 5-30


117/134

!

SYMPTOM PROCEDUREPOST-EVAPROCEDURE

CSD-A-789-(2) 1"1"1APOLLO OPERATIONS HANDBOOK-EMU

Iid. PI_B elec-trical umbil- I

ical failed |

e. EVA-2 com. Iarrierfailed

f. EVA-2 tri- Iplexer failed

g. EVA-2 suit Ielectricalharness Iailed

h. RCU mode Iselector

switch dual {nd primarycontact "A"wafer failed i

i. Primary/dual

co_zn, reg- Ilator failed

J. EVA-2 antenna Ir cablefailed iIiI

iiIiiIiIIiiiiII

@ EVA-2connect to I/4tmblliealMSFN comm. allright

_ EVA-2 swap

com. carrierwith EVA-IMSFN comm.all right _YES ii

_oEVA-2 SUITELECTRICALHARNESS FAILED

PLSS ELEC-TRICAL UMBIL-ICAL FAILED YESComm. restored

i, I N0

iiEVA-2 C0_94. EVA-2 TRI- iCARRIER FAILED ! PLEXER FAILEDi

i

EVA-2 swap RCU MODE SEL.RCU with EVA-I SW, DUAL AND

PRIMARY CON- ITACT "A" WAFER ICo_m_. all right Iin "A" and "A_" _ FAILED,, I_191 N

1_ I"N._Y/DUAL EVA-2 ANTENNACOMM. REGU- ' -iOR CABLE FAILEDLATOI_ FAILED

REMARKS



118/134

CSD-A-789-(2)mAPOLLOOPERATIONSHANDBOOK-EMU

SYMPTOM PROCEDURE REMARKSEMU7 EVAPROCEDUREII

voice from _A-2 !EVA-I (see _set RCU B/C I VOLUME"Addition_ I vol_e to I CONTROL WAS?onditlons" I MAX. i TU_ _O LOW

below) i I CoB, 'restored _SI I'I Does _ have

co_. from


i. Dual EVA

2. EVA-2 hascomm. withMSFN

Possible causes :I EVA-II

a. EVA-2 B/Cvol_e con- Itrol turn-

ed too low Ib. EVA-2 "B"receiverfailed I

c. EVA-I RCU PTT Iwitchturned OFF

d. EVA-2 "B" Isection tri-plexer or K-2 Irela_v antenna

section failed I(Continued On

next page) IIIIIIIIIIIIIII

NO

@ EVA-Iensure thatRCU P_switch isin MAINposition

BASIC DATE

EVA-2/EVA-ItoE, restored

N0

@EVA-I setRCU PTrswitch toMOM position

lq

May

EVA-2/EVA-Ico_m. restored

NO

@EVA-I swap RCUwith EVA-2

EVA-2/EVA-Icomm. restored

NO

To step 13next p_e

1969

YES

II' YES

@ EVA-2 setmode sel.SW. to "A" D- EVA-I setmode sel.SW. to "B"

EVA-2/EVA- icomm. allright _S

J NO rj EVA-I i

RCU PTT SW. iACCIDENTALLY I

l SET TO 0_ iPOSITION

ii EVA-I V0X! CIRCUIT OR! RCU PTT SWITCHi VOX SECTION

FAILED

POSTEVAPROCEDURE

YES

EVA-IRCU PTTSWITCHCIRCUITFAILED

CHANGE DATE

EVA-2"B" RECEIVERFAILED

t

EVA-2"B" SECTIONTRIPLEXER ORK-2 RELAYANTEnnA SEC-TION FAILED

JUNE1971 PAGE 5-32 "


119/134

CSD-A-789-(2) ]33.APOLLO OPERATIONS HANDBOOK-EMU

SYMPTOM

IIPossible causes :(continued) I

e. EVA-I VOX jircuit orRCU PTr

switch VOX Isectionfailed

f. EVA-I RCU JPIT switchclrcu_t i.failed J

g. EVA-I pri-mary/dual Jsignalprocessor Jailed

h. EVA-I VOX/FFI lcircultfailed

i. EVA-I comm. lc_rrier "failed J

J. EVA-I suitelectrical Jharnessfailed JII

IIIIIIIIIIIIII

.... i

@JEVA-I connectto LMumbllical

EVA-I/EVA-2 comm.restored

;NO

J@IEVA-I swap

co._. carrierwith EVA-2

EVA-Z/MS_comm. restored

_o EVA-I SUIT

ELECTRICALHARh_EBSFAILED

PROCEDUREPOST-EVAPROCEDUREContinued}

rA-I reconnect

%0 PISSRCU mode sel.

; switch to "B"_..._$..M set forbackup mode_Es _iEVA-I/MS_

comm. restored

l_iN

EVA-I VOX/PTTCIRCUITFAILED

iIi!!I

EVA-I PRIMARY/ IDUAL SIGNAL IPROCESSORFAILED

,Ji EVA-I C0,_4.

CARRIERFAILED

,_'_s.

BASIC DATE

REMARKS

May 1969 CHANGE DATE __JONE 1971 __ PAGE - 5-33


120/134

SYMPTOMEMU18

Loss of voiceco_m. withrEVA-I,EVA-2, or MSFN(two-man EVA)(comm. restora-tion procedure)

Possible causes:

a. EVCS re-ceiver "A"squelchfailure

b. LM VHF "A"failure

c. Volume con-trol too low

d. P_ switchOFF or inter-mittent

e. VOX circuitfailure

f. EVA-I XMTR"B", EVA-IRCVR "C" EVA-2 RCVR"B", orEVA-2 XMTR"C" failed.

g. EVA-I RCVR"B"/RCVR "C"surmmed out-put failure

h. EVA-I orEVA-2 totalcomm. failure

BASIC DATE

IIIII1IIIIII!IIIIIIIiIIIII!

_au-A-/oY-(Zt .iLLAPOLLO OPERATIONS HANDBOOK-EMU


Excessivenoise presentin headset

NO

I_creaseappropriatevolume control

?i YES @ Outer volumei-----@- control -

DECREASE

EVA-I/EVA-2c_. all righti i

VOLUME CONTROLTOO LOW

YESColmm. all right 1

' PTT - OFF Outer volume ithen MAIN control -

Co_. all right INCREASE

_s_l _oJ L_.,_,,o. ij

PTr SWITCHOFF ORINTERMIt*rENT Comm. all right

NO

I:_s. "B"i_ EVA 2 mode -pos. "A"

EVA 1 mode -pos. "A" NO YESEVA 2 mode - _ Comm. all right

i pos. "B"

Comm. all right ii

YES [ NO

i

r_ N1

EVA-1 RC-'VR "B"/ EVA-1 ORRCVR "C" SU_@4ED EVA-2 TOTAL

OUTPUT FAILURE _ C0_4. FAIL-URE (T_IPLEXZa,POWER SUPPLY,ETC. ) oR LMFAILURE

ji

EVCS RCVR ASQUELCH FAILOR LM PROBLI'_4ON VHF A

YES

_0 _i Outer volume

control IN-CR___SE

i periodicallyto see ifnoise present

VOXCIRCUITFAILURE

EVA-I XMTR "B"OREVA-I RCVR "C"OREVA-2 RCVR "B"OREVA-2 MXTR "C"FAILED

I

May 1969 CHA_IGE DATE JUNE1971

REMARKS

QReception of MSFNis disabled whileouter volume is Infull DECREASE.

EMUdata notavailable from EVA-I.EVA-I cannot hearMSFN.

data not ave/l-

able from EVA-2.EVA-2 cannot hearMSFN.

PAGE 5-34

lit


121/134

CSD-A-789-(2) IT[APOLLO OPERATIONS HANDBOOK-EMU

SYMPTOMEMUIgI l

PROCEDURE REMARKSEVA PROCEDURE

iEVA loses voicefrom LM (see l"Additional iconditions"below)


I. Single EVA J

Possible causes: ia. EVA "A" vol-

tune control Jturned too

low Ib. EVA "A" re-

ceiver HF Jectionfailed

c. BIT relay K-I Jfailed

d. EVA antenna Ifailed

e, EVA cow.carrierfailed

f. Trlplex_rcommon portfailed

g. LM elec_rlcal Jmbilicalfailed

(Continued on iJnext page) iilJiIIIiIIIIi

BASIC DATE

IIL D_oes EVA re-

) ceive voice

I from MSFN

Ij@ EVA set RCU

re'A" volumecontrol toMAX.

Co_m.restored

NO

Does EVA hearsidetone

NO

_mmmilmi

I i,J EVA connect

to I,M Umbil. -

C olnIn.restored

EVA C0)@4.CARRIERFAILED

YES

YES

lYES

YES

JEVA "A" VOL-t,ME CONTROLTURNED TOOLOW

@EVA and LMconfigurefor "B"mode

Comm.i re_toredL

NO

'r

EVA swapi OPS with

other crew-Ran

hComm.restored

NOim

EVA R/T RE-LAY K-I, K-2,OR TRI PLEXERCOMMON PORT

j FAI_

ITo step 12next p_e

6J !EVA "A" RCVR.RF SECTION,OR R/T RELAYK-I, OR LMFAILED

YES

POST-EVAPROCEDURE

EVA ANTENNAFAILED

IYES

To step 15next page

May 1969 CHANGE DATE JUNE19?1 PAGE 5-35


122/134

SYMPTOM

CSD-A-7 uYq_'Ju..tAPOLLO OPERATIONS HANDBOOK.EMU

PROCEDURE REMARKSPOST-EVAPROCEDUREContinued)II

Possible Causes: Icontinued )

h. EVA RCU "A" iolume cir-cuit failed

i. LM failed I

J. EVA "A" re- Ielver RFsection

failed Ik. PLSS electri-

ca/ umhiliced Iailed

i. Primary dual I ....comm. regula- 151tot failed

I EVA connectm. EVA "A" re- to other PLSS JIceiver failed i Cosm. restored II

i_ I"I LH FAILEDIi_

BASIC DATE

IIIIIj II . PRIMARY/DUALCO_. REGU-

I LAiRA_ Ji tIIIIIII

J 124 crewmanI transfer to [l_ ELECTI_,ICALi pilot's elect. UMBILICALi umbilical FAILED

Comm. with MSFN ----e-all right YES

LM CREWMAN CON.CARRIER FAILED

IJ EVA reconnectto original

PLS8, swapRCU withother crewman

Comm. restoredYES_"

Does EVA hear ----l-sldetone YES

May 1969

NO

JEVA RCU "A"VOLUME CIr-CUIT FAILED

EVA "A" RCVR. RFSECTION ORR/T RELAYK-I FAILED

Did LM receive _S EVA "A" RCVR.voice from EVA OR R/T RELAYK-I FAILED

L NO

CHANGE DATE JUNE1971 PAGE 5-36 _.

! I!


123/134

SYMPTOMEMUO

I/4, loses voicefram EVA (see"Additionalconditions"below) .


!. Single EVA

Possible causes:

a. i_. failed

b. EVA RCU PTTswitchturned OFF

c. EVA VOX cir-cuit failed

d. EVA "A" modefailed

e. EVA co_.carrierfailed

f. EVA RCU vexcircuitfailed

!Continued onnext page)

I

t-IIIIIIIIIIIIIIILIIIIIIIIIII

CSD-A-789-(2) TFTAPOLLO OPERATIONS HANDBOOK-EMU

Does LM receivevoice frc_ MSFN

YESI!iI

_LM FAILED

1 EVA set

RCU to PTT

Colmm. restored

I NO

EVA setmode sel,SW. to "B"l_ode

YES

Co_. restored _YESl

NO

EVA cheekeo_mm, usingother PLSS/OPS

Comm. with LM !

NO

PROCEDURE REMARKSEVAPROCEDURE

JDoes MSFNhave voicefrom EVA

YES

1i

_@EVA ensureRCU PTTswitch inMAIN posi-tion

Comm. restoredYES

i rTo step IInext page

i EVA "A" MODE@- FAILED OR LM

FAILED

CONFIGURE LMFOR "B" MODE

POS_EVAPROCEDURE

YES

LM FAILED

EVA RCU t'_SWITCH AC-CIDENTALLY

: SET TO OFF

L

To step 16 To step 15next page next page



124/134

CSD-A-789-(2)]3.APOLLOOPERATIONSANDBOOK-EMU

SYMPTOMJI

Possible causes:continued)

g. EVA RCU modeselect "A"wafer failed

h. EVA antennafailed

i. EVA trlplexer lcome,on port Ifailed

J. Sult electri-cal harnessfailed

IIIBASIC DATE

IIco,m. carri er

Comm. restored

PROCEDUREi

NO

.r ,.

J @ LM OR SUITi ELECTRICALHARNESS

J FAILED

iIliJJ I EVA swap backto originalRCU

I,.,J Comm. restored

J NOi

iii iml

EVA RCU "A"WAFER MODESELECTORFAILED

POST-EVAPROCEDUREContinued)

m

I

i YES L

E%'A COMM, !CARRIER iFAILED !

I

J EVATRZFLZXERIFAILED

May 1969

i_!YE3

I

EVA RCU V0XCIRCUITFAILED

EVA swap backto originalOPS

Comm. all rightI

NOi

_F

EVA ANTENNAFAILED

CHANGE DATE

Swap RCU EVA operates in

MAIN

Comm. all rightYES

NO

i|

EVA VOXCIRCUIT

' FAILEDi_ ,,

REMARKS

JUNE1971 PAGE 5-38 -.


125/134

c

CSD-A-789-(2) ]_APOLLO OPERATIONS HANDBOOK-EMU

SYMPTOM II PROCEDUREEMU 21 .

GTa168P/GT8268P PGApressure


126/134

SYMPTOMI

I EMU 22, "JI

2T8168P/GT8268P _Apress. _h.Opsld IIPossible causes:

a. Regulatorfails openor shiftsset point--

b. GTSI68P/GT8268P

High 0 2 flowflag "0" (after5 se_); orGT8182P/GTB282P PLSS02 pressure orPLSS 02 quantityindicator de-creasing rapidly

CSD-A-789-(2) []APOLLO OPERATIONS HANDBOOK-EMU

PROCEDURE REMARKSEMERGENCY PROCEDURE

,jPLSS 02 PRESS.

I REGULATORFAILEDi OPeN ORSHIFTED SETPOINT

?

YES _@ Actuate 0PS

1i!

iI

fails

BASIC DATE

.L=............! ,mm mmmmmlmm|

EVA PROCEDURE'rDoes PGA press. SHIFT IN PLSSgage agree vith _ i 0 2 REGULATEDGTSIgSP/GT8268P YESPGA press, PRESS.

I QIReduced mobility PGA PRESS. GAGE

!or hear relief _ FAILEDvlv relieving YES

QIf

GT8168P/GT8268P_A PR[SS.FAILED

May 1969

P!_S 0 2 pressureregulator regulatesto 4.0 psid maximumto PGA,'PGA pressurerelief valvecracks at5.0 to 5.75 psid.oThe PLSS 02 shutoffvalve should beCLOSED if possible.If additionalmobility isneeded, openpurge valveto reduce FGApressure to>3.h psid.

Upon returningto the LM, steps7 and 8 can heverified by con-necting the bluePLSS gas con-nector to theOPS pressureregulator checkoutstowage plata.

CHANGE DATE JUNE1971 PAGE 5-40 ,

I |r


127/134

SYMPTOMEMU 23GTBI82PIGT8282PPLSS 02pressureabnorz_al(no warningtone )

Fossible causes:

a. GTSI82P/GT8282Pfailed

b. PLSS 0 2pressuresensorfailed

c. _._ leak

d, PLSS 0 2pressureregulatorfailed open

e. High 0 2 usag 4

BASIC DATE

CSD-A-789-(2) mAPOLLO OPERATIONS HANDBOOK-EMU

PROCEDURE

Q_GT8168P/GT8268P

"11" I PGA pressure>5.7 psld

__J .o

GO to step 21next page

=jL_PGA pressuregage >3.7 psia

EVA PROCEDUREQGT8] 68r/GTS268P _ H_ gh 02 f] owI I F'GA pressure I I fl,_ "o"

I I >h'O Psld I l (02- "0")

INO _NOoo[ oog "0" JJ SENSOR FAILED2 - "0" ) I[

SS 02 PRESS-E REGULATOR

L FAILED OPEN

JWARNING TONEFAILED

Actuate OPSClose PLSS02 shutoffvlv t

_ t_ 15

] PGA pressure I " J flag "0"

gh 02 flow _,fJ LEAKl flag "0" (0 2J - "O") andJ low PGA press-I ure flag "O"

ate OPS

ITo step 2_next page

May 1969 CHANGE DATE JUNE 1971

REMARKS

PLSS 02 pressureregulator regulatesthe PGA to3.85 0.15 psldif the flow is0.07 to 0.7 ib/hr.

PAGE 5-41


128/134

CSD-A-789-(2)FFIAPOLLOOPERATIONSHANDBOOK-EMUSYMPTOMJ PROCEDURE REMARKS1

I EVA PROCEDURE(Continued)Iquantity Monitor

I I indicator a4_rees GT8182P/J with GTS182P/ GT8282P

I IGT8282P PLSS PLSS 02

I IU2press" press, ti! i lllll i i in i mini Jill Ilmll i m | n| IPOST-EVA PROCEDUREJ NrRechargePLSS 02GTS182P/

GT8282P PLSS0 2 press, yE_shows recharge

I [0

2I_,-_ PLSS 0 2II QUANT_YII _NDZCAWORlJ FAILED

l Open purgevalve to LOW

High 02 flowflag "0" (0 -"0" ) 2i

lr_5

N .,_.02 ]LOW SENSORFAILED

_at; Go top 5, EMU 2,

e 5-7

3_ PLSS 02II PRESSUREII ;_uc_lJ FAILED

H LEAKI BETWEENI PLSS 02J SHUTOFF VALVEI AND HIGH 02I FLOW SENSOR

PLSS 0 2shutoffvalve - CFF

RechargePLSS 0 2GT8182P/GT8282PPLSS O2press.shows re-charge

GTSI82P/GT8282PpLSS 0 2pressurestable after50 rain

I)__o_

BASIC DATE. May 1969 CHANGE DATE JUNE 1971 PAGE 5-42

I I I


129/134

CSDLA-789-(2)"!7APOLLO OPERATIONS HANDBOOK-EMU

SYMPTOM PROCEDURE REMARKSEMU 24 EVA PROCEDURE

GT811OP/GT8210Pfeedwaterpressure50 F andrisingI

IGT8210P

J FEEDWATERPRESSUREFAILED

Go tosteF 9,_4U 4,page 5-12

YES

JGT815hT/GT8254TLCG H20 tamp>50 F andrising3T8196T/GT8296TLCG H20 AT


130/134

CSD-A-789.(2}UAPOLLOOPERATIONSHANDBOOK-EMUI

SYMPTOM j PROCEDURE REMARKSJ EVA PROCEDUREMU 25 II

GTSIIOP/GT8210Pfeedwater press. J

_0 F andrising

l NO

!JGTglIOP/GT8210PFEEDWATERPRESS.FAILED

GO to step 12,EMUS,page 5-15tOi/bIf additionalcooling isrequired,activate BSLSS

_ YES

AuxiliaryH20 shutoff

i and reliefi valve open

$,,NO ......

AUXILIARYH20 SHUTOFFAND RELIEFVALVE CLOSED

2-_ GTSIShT/CT8254T

LCG 1120 temp _o Fand risingGT8196T/GT8296TLCG H20 AT


131/134

CSD-A:789-(2)1I[APOLLO OPERATIONS HANDBOOK-EMU

SYMPTOM PROCEDURE REMARKSEMU26 EVAPROCEDURE

GT815hT/GT8254TLCG H20temperature>50 F(dlverter valveinMAX: and nowarning tone)

Possible causes :

a. GTSI54T/GT8254T/failed

b. H2D shut-off and re-lief valveclosed

c. Sublimatorbreakthrough

d. H2C separa-tor blocked

e. Depletedfeedwaterreservoir

f. Blockagebetweenfeedwaterbladder andsublimator

v :

JGT8196T/GT8296TLCG H20 AT50 F

_GT815hT/J GT825hTI LCG H20 TEM-

li PERATT FAILED

Go tostep i,_4U5,page 5-14

i

T8210P feed- YESater press.i___22psla

.__0

I I "

WARNING Low feed-TONE water

pressureFAILED flag "A"

---II 1"YES Is _MU oper-ating on LOW FEED-

auxiliary WATER PRESS.feedwater SWITCH FAILED

NO

Go tostep I,D4Uh,page 5-12

CHANGE DATEASIC DATE May 1969 JUNE1971 PAGE 5-45


132/134

SYMPTOM

CSD-A-789-(2)APOLLO OPERATIONS HANDBOOK.EMU

PROCEDURE REMARKSu, ,.

POST-EVA PROCEDURE

@ Replacebattery( from otherPLSS )

GTIhlV/GT82hlVPLSS batteryvoltage >16.0 V dc

. _o_J

GT81hlV/GT82hlVPi_S BATTERYVOLTAGE FAILEDi

DEGRADEDBATTERY


133/134

CSD-A-789-(2) ]]]_APOLLO OPERATIONS HANDBOOK-EMUSYMPTOM II PROCEDURE REMARKSEMU 31 EMERGENCY PROCEDURE

G_817ffr / 3]GT8270T02 tempera- .p. WARNING TONEture


134/134

CSD-A-789-(2) I_APOLLO OPERATIONS HANDBOOK-EMU

ISYMPTOM. jEMU 32': lI

GT827OT'o_.p I!' _5F Vand rising i

(No warning Jtone) i J

IPossible causes: I

a. GT8170T/ JGT8270Tfailed J

b. Subl imat o r Jbreakthrough j

c. H20separator J 4_4Jblocked

d. Depletedfeedwater !ireservoir I

e. Blockage be- Itween feed- Jwater bladderand Jsublimator _

f. H20 shutoffand relief J

valve closed J _II

GT811OP/GT8210Pfeedwaterpressure

Apollo Operations Handbook Extravehicular Mobility Unit Volume II

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Transcript of Apollo Operations Handbook Extravehicular Mobility Unit Volume II