bject: SOUM 00-017, TECHNICAL, GEARED HUB LOCKWASHER, HMMWV
R121509ZJUN00
> TEXT
> :UNCLAS
> SUBJECT: SAFETY OF USE MESSAGE (SOUM), TACOM CONTROL NO. SOUM-00-017
> UPDATE FOR TECHNICAL, GEARED HUB LOCKWASHER, NSN 5310-01-213-4185,
> FOR ALL M998 SERIES HIGH MOBILITY MULTIPURPOSE WHEELED VEHICLES
> (HMMWV).
>
> D XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX D
> A X "WARNING" X A
> N X DEATH OR SERIOUS INJURY TO SOLDIERS, OR DAMAGE X N
> G X TO ARMY EQUIPMENT WILL OCCUR IF THE INSTRUCTIONS X G
> E X IN THIS MESSAGE ARE NOT FOLLOWED. X E
> R XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX R
>
> REFERENCE:
>
> A. MSG, 181759Z, MAY 00, TACOM-WRN CONTROL NO. SOUM-00-014, SUBJECT:
> SAB.
>
> 1. DISTRIBUTION:
>
> A. THIS IS A TECHNICAL SAFETY OF USE MESSAGE. MACOM COMMANDERS
> WILL RETRANSMIT THIS MESSAGE TO ALL SUBORDINATE COMMANDS/ACTIVITIES
> WITHIN 24 HOURS OF RECEIPT OF THIS MESSAGE AND ACKNOWLEDGE RECEIPT OF
> THIS MESSAGE WITHIN FIVE WORKING DAYS TO: CDRTACOM, WARREN MI//
> AMSTA-LC-CIPWM// DSN 786-6096, COMMERCIAL (810) 574-6096 OR DDN
> ADDRESS:
SAFETYOFUSE@TACOM.ARMY.MIL. MACOMS NOT RESPONDING WILL BE
> CONTACTED BY TACOM.
>
> B. MACOM COMMANDERS WILL ALSO TRACK AND REPORT COMPLIANCE OF THIS
> MESSAGE FOR ALL SUBORDINATE COMMANDS/ACTIVITIES TO EITHER MR. AL
> YASONI, HMMWV LOGISTICS MANAGER AT TACOM, DSN 786-8398 OR MS. JODY
> MCINERNEY, HMMWV EQUIPMENT SPECIALIST AT TACOM, DSN 786-6277 WITHIN
> 30 DAYS OF RECEIPT OF THIS MESSAGE.
>
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> 2. PROBLEM:
>
> A. THIS MESSAGE IS AN UPDATE TO SOUM 00-014, AND SHOULD PROVIDE
> SOME NECESSARY CLARIFICATIONS. FIRST, THIS MESSAGE AND REFERENCED
> MESSAGE (SOUM 00-014), APPLY TO ALL HMMWV MODELS. AS STATED IN
> REFERENCED MESSAGE, PARAGRAPH 3C, IF YOUR VEHICLES WERE RECEIVED
> THROUGH NEW EQUIPMENT FIELDING AND YOU HAVEN'T PERFORMED GEARED HUB
> MAINTENANCE AND/OR YOUR SEMI-ANNUAL GEARED HUB PMCS, YOUR VEHICLES
> ARE EXEMPT FROM THESE MESSAGES.
>
> B. WE HAD A REPORT FROM THE FIELD THAT A WHEEL FELL OFF A HMMWV.
> THE INVESTIGATION RESULTS CONFIRMED THE CAUSE WAS NON-COMPLIANT
> LOCKWASHERS IN THE SUPPLY SYSTEM. THE NON-COMPLIANT LOCKWASHERS
> MEASURE .120 INCHES THICK. THERE IS A POTENTIAL OF APPROXIMATELY
> 44,000 PIECES OF NON-COMPLIANT LOCKWASHERS. THE PROBABILITY THAT
> THESE LOCKWASHERS ARE STILL IN USE IS REMOTE, HOWEVER, THE RISK OF
> SERIOUS INJURY, DEATH TO PERSONNEL OR DAMAGE TO EQUIPMENT IS HIGH.
>
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>
> 3. USER ACTIONS:
>
> A. REFER TO SOUM 00-014; PARAGRAPH 3B AND 3C REMAIN THE SAME.
> THE INSTRUCTIONS BELOW ARE SUPPLEMENTAL TO THOSE PROVIDED IN
> PARAGRAPH 3A AND 3D OF SOUM 00-014, DATED 18 MAY 00.
>
> B. USER SUPPLY CLERKS AT ALL LEVELS ARE REMINDED TO INSPECT
> LOCKWASHER, NSN 5310-01-213-4185, STOCK (I.E., BENCHSTOCK, SHOP
> STOCK, ASL AND ANY SERVICE STOCK) AND DISPOSE OF ANY SUSPECT OR
> NON-COMPLIANT STOCK PER AR 710-2.
>
> C. VEHICLES ARE EXEMPT FROM INSPECTION IF USERS CAN POSITIVELY
> DETERMINE THAT THE NON-COMPLIANT LOCKWASHERS, NSN 5310-01-213-4185
> ARE NOT INSTALLED ON THEIR VEHICLE THROUGH THE FILE COPY OF THE LAST
> RECORDED MAINTENANCE SERVICE RECORDS, AS WELL AS ANY NEW EQUIPMENT
> FIELDED VEHICLES FROM PRODUCTION (THAT HASN'T UNDERGONE GEARED HUB
> SERVICE). IF THERE IS ANY DOUBT OF THE TYPE OF LOCKWASHER INSTALLED
> OR IT'S SERVICEABILITY, THE VEHICLE MUST BE INSPECTED. ALL HMMWV
> FLEET VEHICLES THAT DO NOT MEET ONE OF THE TWO LISTED EXEMPTION
> CRITERIA MUST BE INSPECTED. THE INSPECTION AND MEASUREMENT MUST BE
> CONDUCTED WITHIN 45 DAYS AFTER RECEIPT OF THIS MESSAGE. THIS
> INSPECTION AND MEASUREMENT CAN BE ACCOMPLISHED AT ORGANIZATIONAL
> LEVEL MAINTENANCE. ANY HMMWV FLEET VEHICLE THAT HAS NOT HAD THE
> DIRECTED INSPECTION COMPLETED AFTER THE 45 DAY PERIOD WILL BE "NON
> MISSION CAPABLE" UNTIL THE INSPECTION IS COMPLETED AND CORRECTIVE
> ACTIONS TAKEN AS NECESSARY.
>
> 1. WE HAVE VERIFIED THAT THE INSPECTION/MEASUREMENT CAN BE
> DONE BY REMOVING THE WHEEL ASSY (TM9-2320-280-20-2, PARAGRAPH 8-3),
> DRAINING THE GEARED HUB (TM9-2320-280-20-2, PARAGRAPH 6-14, STEP 1
> AND BY REMOVING THE STEERING ARM COVER (TM9-2320-280-20-2, PARAGRAPH
> 6-14, STEP 2). THERE IS NO NEED TO REMOVE THE LOCKWASHER. YOU CAN
> VISUALLY CHECK FOR BREAKS/CRACKS AT THE BEND. IF NO CRACKS/BREAKS ARE
> VISIBLE, MEASURE THE THICKNESS OF THE TAB. THE FOLLOWING SUGGESTED
> PROCEDURES HAVE BEEN RECEIVED FROM THE FIELD AND ARE PROVIDED AS
> ALTERNATIVE METHODS WHICH CAN BE USED TO ACCOMPLISH THIS TASK AT THE
> ORGANIZATIONAL LEVEL:
>
> A. MECHANICS ARE TO REMOVE THE STEERING ARM COVER AS PER
> THE TECHNICAL MANUAL, CLEAN THE LOCKWASHER TAB SURFACE AND INSURE THE
> LOCKWASHER BENT TABS ARE FLUSH AGAINST THE SURFACE OF THE LOCKNUT
> SLOT.
>
> B. USING A 7/64 INCH ALLEN WRENCH, COMPARE THE ALLEN
> WRENCH TO ONE OF THE LOCKWASHER TABS BY ALIGNING THE 7/64 INCH ALLEN
> WRENCH WITH THE END OF THE LOCKWASHER TAB. IF THE LOCKWASHER TAB
> THICKNESS IS EQUAL TO OR LARGER THAN THE 7/64 INCH ALLEN WRENCH
> THICKNESS, REPLACE THE LOCKWASHER. IF IT IS LESS THAN THE 7/64 ALLEN
> WRENCH THICKNESS, YOUR LOCKWASHER IS CONSIDERED SERVICEABLE.
>
> C. ANOTHER METHOD TO CHECK THE LOCKWASHER THICKNESS,
> OTHER THAN USING THE 7/64 INCH ALLEN WRENCH, IS TO COMPARE A
> KNOWN GOOD LOCKWASHER, NSN 5310-01-213-4185 TO ONE OF THE LOCKWASHER
> TABS INSTALLED IN THE GEARED HUB. THIS CAN BE ACCOMPLISHED BY
> SIMPLY SLIDING THE KNOWN GOOD LOCKWASHER AGAINST THE LOCKWASHER TAB
> INSTALLED IN THE GEARED HUB. IF THE LOCKWASHER TAB THICKNESS IS
> LARGER THAN THE KNOWN GOOD LOCKWASHER THICKNESS, REPLACE THE
> LOCKWASHER. IF THE THICKNESS IS EQUAL TO OR LESS THAN THE KNOWN GOOD
> LOCKWASHER THICKNESS, YOUR LOCKWASHER IS CONSIDERED SERVICEABLE.
>
> 2. THE ONLY ALTERNATIVE TO THE PROCEDURES ABOVE OR THE
> PROCEDURES STATED IN PREVIOUS SOUM 00-014 IS REPLACEMENT OF THE
> LOCKWASHER.
>
> C. UNIT COMMANDERS, CONTACT YOUR LOCAL TACOM LOGISTICS
> ASSISTANCE REPRESENTATIVE(LAR) OR YOUR STATE SURFACE MAINTENANCE
> MANAGER UPON RECEIPT OF THIS MESSAGE FOR ASSISTANCE. FOR ASSISTANCE
> IN LOCATING YOUR TACOM LAR, SEE PARAGRAPH 6C.
>
> 4. TACOM/PM ACTIONS: THE INFORMATION PROVIDED IN THIS MESSAGE WILL
> BE PUBLISHED IN AN EQUIPMENT IMPROVEMENT RECOMMENDATION (EIR) DIGEST
> ARTICLE (TB 43-0001-62) NLT 4TH QTR FY00.
>
> 5. SUPPLY STATUS: THE LOCKWASHER, NSN 5310-01-213-4185, IS DEFENSE
> LOGISTICS AGENCY MANAGED AT S9I, DSCP, PHILADELPHIA. THERE ARE
> CURRENTLY 21,538 LOCKWASHERS IN STOCK WHICH S9I IS CONTROLLING
> FOR RELEASE OF HIGH PRIORITY REQUESTS. THERE ARE ALSO 239,000
> CURRENTLY ON ORDER AND EXPECTED AWARD OF AN ADDITIONAL 200,000 WITHIN A
> WEEK. PROJECTED DELIVERY RUNS FROM 50,000 TO 100,000 PER MONTH
> THRU OCTOBER 2000.
>
> 6. POCS:
> A. MS. JODY MCINERNEY, HMMWV SUSTAINMENT TEAM, DSN 786-6277,
> COMMERCIAL (810) 574-6277, E-MAIL:
MCINERNJ@TACOM.ARMY.MIL
>
> B. MR. AL YASONI, HMMWV LOGISTICS MANAGER, DSN 786-8398,
> COMMERCIAL (810) 574-8398, EMAIL:
YASONIA@TACOM.ARMY.MIL.
>
> C. TO FIND YOUR TACOM LAR, LOG ONTO THE ARMY ELECTRONIC
> PRODUCT SUPPORT WEB SITE AT
HTTP://AEPS.RIA.ARMY.MIL. ONCE LOGGED
> INTO THE AEPS SITE, SELECT THE LAR LOCATOR SERVICE, THEN SELECT THE
> APPROPRIATE REGION, I.E.: CONUS, USAREUR, FAR-EAST, KUWAIT. SELECT
> THE LOCATION NEAREST YOU AND CLICK ON A NAME. THIS WILL GIVE YOU A
> LAR'S NAME, DSN AND COMMERCIAL PHONE NUMBER, EMAIL ADDRESS, AND
> PHOTO. IF YOU DON'T HAVE ACCESS TO AEPS, YOU CAN ALSO OBTAIN THIS
> INFORMATION BY CONTACTING THE TACOM SENIOR COMMAND REPRESENTATIVE
> (SCR) FOR YOUR AREA. CONUS (INCLUDES NATIONAL GUARD, CONUS ARMY
> RESERVE UNITS, SOUTHCOM, AND KUWAIT) DSN 367-6204/6293, COMMERCIAL
> 404-464-6204/6293; USAREUR (GREAT BRITAIN, GERMANY, BELGIUM,
> LUXEMBURG, ITALY, BOSNIA, KOSOVO, AND MACEDONIA) DSN 375-6128/7436,
> COMMERCIAL 01149 621-487-3461/6218, FAR EAST (INCLUDES ALASKA,
> HAWAII, KOREA, OKINAWA, KWAJALIEN, AND JAPAN) DSN 315-722-6036,
> COMMERCIAL 011 82 32 520-6036/6881.
> __________________________________________________________________________
> __________________________________________________________________________
> __________________________________________________________________________
> __
