TM10-3930-660-20 Section  IV.  REMARKS REFERENCE  CODE REMARKS . . . . . . . . . . . . . A Engine  assembly  is  manufactured  to  metric  measure. B STE/ICE tests. c Service  by  changing  oil  and  filter. D Consists  of  valve  clearance  adjustment. E Oversize/undersize replacement bearings are available. F Inspect  for  leakage. G Includes  timing  the  injection  pump  using  a  timing  pin  method. H Consists of cleaning element with compressed air, if appropriate. Crew can remove and clean inner element. I Fuel  and  hydraulic  tanks  are  incorporated  in  one  assembly. J Crew adds oil or fuel; Organizational drains, cleans and refills the tank/reservoir. K Fuel control lever travel adjustment. L May be repaired by welding. M Front  and  rear  differential  carriers  and  planetaries  are  identical,  except  No-Spin  differential  is used on front axle. N Includes  replacement  of  instrument  panels,  seat,  etc. o Only inspect wear pads that are visible at boom ends. P End play adjustment. Q Crew can remove and install only. R Organizational  uses  built-in  indicator  lights  to  test  joystick  functions.  Direct  support  tests  joystick functions  with  ammeter. s Repair by replacement of downports. B-23\(B-24  Blank)