Using Expendables - Continued
Using a small artists brush, apply a light coating of fungus proof varnish to the solder joints (1) and
exposed wire (2) and approximately 1/4 of an inch of the insulation (3).
If a component (4) has been replaced, coat the entire component with fungus proof varnish.
Allow the fungus proof varnish to dry completely.
Lubricants. Some of the lubricants used to maintain fire control equipment are aircraft and instrument
grease, special preservative lubricating oil, and graphite-petrolatum antiseize compound. Grease, compound, and oil
should be used sparingly since the aim of good lubrication is to apply a minimum amount of lubricant consistent with
adequate lubrication. Thoroughly clean and dry all parts before lubrication. The general application of lubricants upon
assembly is as follows:
Clean all parts to be lubricated using a clean cloth, moist but not dripping, with a cleaning solvent.
Remove all dirt and grease then dry the parts using a second clean, dry cloth.
Clean rubber parts using a clean cloth, moist but not dripping with mild soap and water.
Use a clean brush or cloth to apply grease and a hand oiler (fig. 3-35) to apply light weight oil.
Figure 3-35. Hand Oiler
Never put a dirty brush into clean grease. If brush is dirty, dip into a cleaning solvent and wipe dry with a
In steps (5) through (9), refer to figure 3-36.