Lesson 2/Learning Event 1
LEARNING EVENT 1:
DESCRIBE BEFORE-, DURING-,
AND AFTER-OPERATION CHECKS
AND SERVICES ON THE 50-GPM PUMP
To insure that the pump is ready for operation at all times, it must be systematically inspected so
that defects may be discovered and corrected before they result in serious damage or failure. The
necessary preventive maintenance checks and services to be performed are listed in figure 4 on
pages 19 and 20.
The operator will assume responsibility for maintaining the fuel and lubrication levels of the
gasoline engine and inspecting the equipment. Deficiencies must be corrected or reported to
organizational preventive maintenance using DA Form 2404 (figure 5 on page 21).
Engine. Inspect for fuel and oil leaks on and around the engine. Check for bent, cracked,
broken, loose, or missing parts.
Oil Level Gage. Use the oil gage rod
the oil level
in the crankcase, adding oil
necessary. Do not overfill. Refer to LO 5-2805-256-12, in Appendix A on page 63, for the
proper grade of oil.
Air Cleaner. Inspect for cleanliness and serviceability. Check the restriction indicator: if RED is
visible, report to organizational preventive maintenance.
Fuel Filter. Inspect the filter for accumulated dirt, water, sediment and leakage.
Spark Plug and Cable. Inspect for insecure installation.
Keep the engine free of dirt and oil on all external surfaces. See that the unit
is properly sheltered at all times, and that the cooling shrouds installed are