Quantcast FIGURE   3-20.   Checking   Plunger   and   Barrel   for   Damage

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ARMY TM 9-2815-254-24 AIR FORCE TO 38G1-94-2 f. Check  for  excessive  clearance  between  control  rack  (39)  and  bushing  (45)  that  is  press  fitted  into  pump  hous- ing (19). To check for end play, hold pinion and measure movement of control rack. If wear on working area of control rack and bushing is excessive and play is more than 0.012 in. (0.3 mm), replace control rack. g. Check for excessive wear of gear teeth on control rack (39) and sleeve pinion (30). If backlash is more than 0.012 in. (0.3 mm), replace both control rack (39) and sleeve pinion (300). h. Check that flange on plunger (24) is not damaged, refer to FIGURE 3-20. If damaged, replace plunger and barrel as an assembly. FIGURE   3-20.   Checking   Plunger   and   Barrel   for   Damage i. Check  cylinder  sleeve  (29,  FIGURE  3-8)  groove  for  damage  or  excessive  wear.  Replace  if  worn  or  damaged. j. Check tappet (23) rollers, bushings, and pins for excessive wear, flaws, or peeling, refer to FIGURE 3-21. If damage is found, replace tappet. FIGURE   3-21.   Tappet 3-45


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