TM 5-6115-275-14 NAVFAC P-8-615-14 TO 35C2-3-452-1 e. Cleaning, Inspection, and Repair. WARNING Clean   all   parts   in   a   well-ventilated area.     Avoid     inhalation     of     solvent fumes    and    prolonged    exposure    of skin to cleaning solvent. Wash exposed skin thoroughly. Dry cleaning  solvent  (Fed.  Spec.  P-D-680 and  P-S-661)  used  to  clean  parts  is potentially   dangerous   to    personnel and  property.  Do  not  use  near  open flame  or  excessive  heat.  Flash  point of solvent is 1000 F(38°C). (1) Clean  all  parts  with  a  cloth  dampened  in cleaning  solvent,  Fed.  Spec.  P-D-680  or  P-S-661,  and dry thoroughly. (2) Inspect the ball bearing to be sure it moves smoothly and quietly and for evidence of excessive wear. Replace a noisy, loose, or worn ball bearing. (3) Inspect   the   rotor   shaft   at   each   end   for evidence of nicks, rust, or wear. Use a fine file to remove rust, burrs, or fine ridges. Inspect the rotor assembly to be  sure  all  windings  are  properly  pressed  into  the  core slots.  Inspect  the  core  for  wear  and  replace  a   badly scored or defective rotor assembly. (4) Inspect   the   field   windings   and   leads   for damaged  or  broken  wires.  Inspect  the  main  frame  for damage   and   broken   welds   and   for   nicks   and   burrs around the mounting flanges. Remove  all  the  defective  wiring  that  can  be  replaced without disturbing the main field windings. (5) Inspect  all  hardware  for  defective  threads. Replace damaged or missing parts. (6) Inspect     the     wiring     harness     and     plug connector for defects and replace all defective parts. (7) If the bearing (13, fig. 8-1) is to be replaced in the bearing unit housing (11) repair as follows: (a) Remove   old   sleeve   or   enlarge   the bracket bore by machining. Be sure to center the bore for proper rotor alignment. (b) Fabricate a sleeve from a steel bar or tubing, Federal Spec. QQ-S-633, or equal. Machine the sleeve  0.0005  in.  (0.0013  cm)  larger  than  the  bracket bore to provide a press fit. The I. D. of the sleeve shall be less than the bearing 0. D. to allow for final machining after sleeve is installed. (c) Press sleeve into bracket. (d) Machine sleeve I. D. same as 0. D. Of bearing, with a tolerance of 0.0005 in. (0.0013 cm). (e) The use of Loctite Sealant, NSN 8030- 00-964-7537,   is   permissible   as   an   additional   aid   in locking the bearing in the sleeve. (8) If  the  field  windings  and  coils  have  been replaced,     follow     the     instructions     listed     below     for varnishing and baking: NOTE Refer    to    figures    8-3    and    8-4    for insulation data. 8-4