TCM FB30-8 - PARTS CLEANING GUIDELINES

03. CLEANING
1. 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 fluid 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.
2. Bearings
① To dislodge solidified particles of lubricant, immerse bearings in cleaning fluid 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.
3. 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.