Table 2-1. Preventive Maintenance Checks and Services
Items To Be
Lube Oil Filters
Change lube oil filters. Unscrew all filter elements (3, FIG. 2-3).
Only one valve at a time should be in OFF position. All other valves should
be in ON position.
If necessary, as dictated by mission requirements, main oil filters may be
changed (one at a time) while the engine is running by turning the valve for
each filter to the OFF position. Be sure to turn the valve ON before
proceeding to the next filter.
FIGURE 2-3. Lube Oil Filter Change