TCM FD35C9 - Page 27

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5. CLEANING
■ General metallic parts
① Clean parts thoroughly using cleaning uid. It is recommended that parts be immersed in cleaning uid and
moved up and down slowly until all old lubricant and foreign material is dissolved and parts are thoroughly
cleaned.
② Cast parts should be cleaned with cleaning solvent or steam cleaned.
③ If a part is severely contaminated, use a wire brush or a piece of wood or metal to scrape off contaminants
from the part. Wash it in cleaning uid once, before cleaning it completely. However, do not use a wire
brush for cleaning sliding surfaces or machined surfaces.
④ Oil passages must be cleaned with a steam cleaner. After checking for clogging with a piece of wire, they
also should be cleaned with cleaning uid or with compressed air.
⑤ Some parts may be cleaned in hot solution tanks with mild alkaline solution. Parts should remain in solution
long enough to be thoroughly cleaned and warmed.
This will aid the evaporation of the cleaning solution and rise water. Parts cleaned in solution tanks must be
thoroughly rinsed with clean water to remove all traces of alkali.
 Careshouldbeexercisedtoavoidskinrashes,rehazardsandinhalationofvaporswhenusing
solvent type cleaners.
⑥ If alloy parts, such as bearing shells or bushings, are cleaned with alkaline solution, they are apt to corrode
due to ionization. Such parts should be cleaned with kerosene, Tricrene solvent vapor or “Magnus” uid.
⑦ After cleaning, parts must be thoroughly dried with compressed air.
■ Bearings
① To dislodge solidied particles of lubricant, immerse bearings in cleaning uid and remove them from the
uid. On a clean work bench, tap the bearing softly with a soft mallet to dislodge solidied particles.
② When drying bearings, be careful to direct air stream across bearing to avoid spinning.
■ Rubber parts
① When rubber parts need to be cleaned, use alcohol or wipe them clean with a soft cloth.
② Never use gasoline, diesel fuel or kerosene for cleaning. Use the same kind of oil for which the rubber part
will be used.