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Page Title: CLEANING AND INSPECTION
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TM5-2420-222-34 14-10 BACKHOE STABILIZER AND BUCKET VALVES REPAIR (Con’t). b. CLEANING AND INSPECTION WARNING •  Dry  cleaning  solvent,  P-D-680,  Is  toxic  and  flammable.    Always  wear  protective goggles and gloves, and use only In a well-ventilated area.  Avoid contact with skin,  eyes,  and  clothes,  and  DO  NOT  breathe  vapors.    DO  NOT  use  near  open flame or excessive heat.  The solvent's flash point is 100F-138F (38°C-59°C).  If you  become  dizzy  while  using  cleaning  solvent,  Immediately  get  fresh  air  and medical  help.    If  solvent  contacts  eyes,  Immediately  wash  your  eyes  and  get medical aid. •  Compressed air used for cleaning or drying purposes, or for clearing restrictions, should never exceed 30 psi (207 kPa).  Wear protective clothing (goggles/shield, gloves, etc.) and use caution to avoid Injury to personnel. 1. Clean valve body with rags dampened with dry cleaning solvent.  Dry thoroughly with compressed air. 2. Clean three fluid flow restrictors and valve with dry cleaning solvent and rags.  Dry thoroughly with compressed air. Ensure that holes are free of material and dirt. 3. Clean all other metal Darts with dry cleaning solvent.  Dry thoroughly with compressed air. 5. Inspect  spool  spring  (19)  for  cracks,  breaks,  and abnormal  bends.    Using  spring  tester  and  torque wrench, apply 27 lb (120 N) of force and measure compressed length of spring.  Compressed length must be 1.1875 in. (30.1625 mm). 6. Inspect  springs  (10  and  23)  for  cracks,  breaks, and    abnormal    bends.        Using    portable    spring resiliency  tester  and  machinist’s  rule,  apply  8  oz (2.2 N) of force and measure compressed length of  springs.    Compressed  length  must  be  0.8125 in. (20.637 mm). TA701582 14-52

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