TM  10-3930-638-24&P 4-4.    TRANSMISSION    MAINTENANCE    (cont) b. Converter  Housing  (cont) All  parts  except  bear- Clean ings (4, 6, 12, and 16), converter housing (32) and switch (20) hearings (4, 6, 12, Clean and 16) STEP LOCATION ITEM ACTION REMARKS CLEANING 8 Use  cleaning  solvent  P-D-680.  Immerse parts and move up and down slowly until all lubricant and foreign material is dissolved. Dry parts thoroughly after removal  from  cleaning  solvent  with  mois- ture  free  compressed  air  or  clean  cloths 9 Use  cleaning  solvent  P-D-680.  Immerse bearings and slowly move up and down. Remove  bearings  from  cleaning  solvent and strike larger side of cone flat against a  block  of  wood  to  dislodge  solidified particles of lubricant, Immerse again in cleaning  solvent  and  repeat  above  proce- dure until bearings are thoroughly clean. Dry bearings using moisture free compress- ed air. Be sure you direct air stream across bearing to avoid spinning. Don’t spin bearing when drying them; bearings may be rotated slowly by hand to faci- litate  drying WARNING Exercise care when using alkali cleaners to avoid coming in contact with cleaner or breathing vapors to prevent skin rashes and bodily harm. Wear a rubber apron to prevent clothes from coming in con- tact with cleaner and use cleaner in a well ventilated area. If alkali cleaner is splashed on clothes or skin, flood area with large amounts of  water  and  get  immediate  medical  attention. 10 Converter housing (32) Clean Clean  exterior  and  interior  thoroughly with  cleaning  solvent  P-D-680,  or  clean in hot solution tank with mild alkali solution. Part must remain in solution long enough to be thoroughly cleaned and heated. Rinse with clean water to remove all traces of alkali. Cast portions may be steam cleaned. Thoroughly dry immediately  using  moisture  free  com- pressed air or clean cloths 11 Transmission  tempera- Clean Clean exterior of switch with clean cloth ture switch (20) moistened  with  cleaning  solvent;  dry using  clean  cloth 4-157

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