How do you know what grease or oil to select for a particular application? Lubrication instructions are issued for all equipment requiring lubrication. You will find that the MIM or MRCs provide you with lubrication information. In the event that the exact lubricant is not available and a substitution is not listed, request sub-stitution through the chain of command.

LUBRICATION CHARTS 

The lubrication requirements for each model of aircraft are given in the General Information and Servicing section of the MIM. In the MIM you will find the necessary support equipment and consumable material requirements. A table/chart similar to the one shown in figure 3-15 lists all of the various types of lubricants used in lubricating the whole aircraft. Additional information, such as application symbols, specification numbers, and symbols are provided in this table.

You should use the MRCs as a guide to the lubrication of aircraft. Figure 3-16 shows the front and

Figure 3-16.Typical lubrication MRC.














Figure 3-16.Typical lubrication MRC-Continued.

back of these cards, which cover one specific area of aircraft lubrication. The top section of the card gives the card number, MRC publication number, frequency of application, time to do this section of cards, man-power required, name of area being lubricated, and if you need electrical/hydraulic power. The card illustrates the unit to be lubricated, and the number and types of fittings. The type of grease or oil to be used is listed with each item.

Prior to lubricating any parts, consult the MIMs or MRCS for proper equipment and type of lubricant. Consult the MSDS for any special safety precautions. Remove all foreign matter from joints, fittings, and bearing surfaces. A clean, lint-free cloth soaked with a cleaning solvent may be used for this purpose. The lubricant should be applied sparingly to prevent accumulation of dust, dirt, and other foreign matter. When you apply lubricants through pressure-type fittings with a grease gun, make sure the lubricant appears around the bushing. If no grease emerges around the bushing, check the fitting and grease gun for proper operation. You should make sure the grease gun is properly attached to the fitting, and wipe up all excess grease when done. If the flush-type fitting is being used, the grease gun must be equipped with the flush-type adapter. Hold the adapter perpendicular to the surface of the fitting when you use the gun. A 15-degree variation is permitted.