TM 5-3895-368-14&P Section IV. - MAINTENANCE INSTRUCTIONS 4-1. Cleaning Instructions. a.        Periodic    cleaning    out,    by    Direct    Support Maintenance  personnel,  of  residue  and  sludge  provides for a  more efficient operation of  the Asphalt  Melter;  and when  moving the  melter to  a  new  worksite,  reduces  the overall weight. b.    Effort  required  to  clean  out  the  asphalt  melter can   be   held   to   a   minimum    by    draining    all    asphalt material,    when  hot,  before  unit  is  shut  down.    Remove the  rear  drain  cap  (10,  Figure  4-1)  to  drain  the  storage tank.    Dispose  of  drained  residue  in  accordance   with local safety regulations. WARNING ALLOW UNIT TO COOL TO AMBIENT TEMPERATURE   BEFORE   STARTING CLEANING OPERATIONS OR DISMANTLING OF UNIT. UNIT OPERATES     AT     235°F,          SEVERE BURNS MAY RESULT IF CONTACT IS MADE WITH UNIT. c.  Before beginning clean out procedures, the unit must   be   partially   dismantled   to   gain   access   to    the storage  tank  (see  paragraph  4-3).    Do  not  disassemble the   melter   farther   than   needed.      To   properly   clean storage tank the storage tank heating coil (4, Figure 4-1) must be removed. WARNING • TUNNEL  MUST  BE  REMOVED  A MINIMUM  OF  24  HOURS  PRIOR TO ENTRY INTO STORAGE TANK.        CHEMICAL    CONTAMI- NANTS  MAY  BE  PRESENT  AND MAY CAUSE SICKNESS OR IRRITATION. • CHECK    WITH    LOCAL    SAFETY OFFICE  FOR  CONFINED  SPACE ENTRY REQUIREMENTS. • DRY     CLEANING     SOLVENT     (P- D680)   IS   TOXIC   AND   FLAMMA- BLE.  WEAR PERSONAL PROTEC- TIVE   EQUIPMENT,   TO   INCLUDE NITRILE RUBBER GLOVES/ APRONS     AND     A     FULL     FACE SHIELD;  USE  ONLY  IN  A  WELL- VENTILATED  AREA;  AVOID  CON- TACT   WITH   SKIN,      EYES,   AND CLOTHES AND DO NOT BREATHE VAPORS.        KEEP    AWAY    FROM HEAT OR FLAME.  NEVER SMOKE WHEN  USING  SOLVENT.    (FLASH POINT  FOR  TYPE  III  SOLVENT  IS 2000F.)  FAILURE  TO  DO  SO  MAY RESULT IN INJURY OR DEATH TO PERSONNEL.      REFER   TO   WAR- NINGS PAGE B FOR MORE INFORMATION. d.  Clean walls and floor of storage tank and tunnel support beams by scraping. e.        The    asphalt    flexible    hose    and    disconnect couplings  (Figure  2-6)  may  be  cleaned  by  soaking  in  a trough filled with approved cleaning solvent. f.      Allow   the   unit   to   thoroughly   air   dry   before attempting to reassemble the melter. 4-2. Lubrication Instructions. Lubricate the asphalt melter monthly as follows: a.  Apply a drop of SAE 10 grade oil (MIL-L-2104E) to the bushings of the door winches. b.  Use a clean rag to apply oil (Lubriplate, Bar and Chain Oil 10-R, or equivalent) to the load chain. 4-3. Maintenance Instructions. a. The asphalt melter, is designed and constructed,  to  be  virtually  maintenance  free.    Most  all damage  or  deterioration  of  the  melter  will  be  the  direct result of careless operation or handling during installation and/or disassembly. WARNING • ALLOW     UNIT     TO     COOL     TO AMBIENT TEMPERATURE BE- FORE PERFORMING ANY MAINTENANCE    ON    THE    UNIT. UNIT OPERATES AT 235°F, SEVERE BURNS MAY RESULT  IF CONTACT IS MADE WITH UNIT. • TUNNEL  MUST  BE  REMOVED  A MINIMUM  OF  24  HOURS  PRIOR TO  ENTRY  OF  STORAGE  TANK. CHEMICAL CONTAMINANTS MAY BE  PRESENT  AND  MAY  CAUSE SICKNESS OR IRRITATION. • CHECK    WITH    LOCAL    SAFETY OFFICE  FOR  CONFINED  SPACE ENTRY REQUIREMENTS. 4-1