Section IV. LUBRICATION INSTRUCTIONS
provide you with additional lubrication information.
4-9. Chassis Lubrication
This section contains supplemental information and
lubrication instructions that must be followed for the
Lubrication at organizational maintenance consists
pump assembly at the organizational maintenance level.
primarily of annual lubrication of wheel bearings. Refer
Refer to LO 5-4320-234-12 (fig. 3-1) for lubrication
to paragraph 4-52 for wheel bearing maintenance and
points, intervals, and detailed instructions. Also,
reference to paragraphs 3-2 thru 3-4 of this manual will
Section V. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
(MONTHLY AND QUARTERLY)
4-11. Preventive Maintenance Checks and Services
This section lists the preventive maintenance checks
Refer to table 4-1 for a listing of the preventive
and services which shall be performed on a monthly or
maintenance checks and services which are allocated to
quarterly basis by organizational maintenance
personnel. It includes and expands upon the preventive
maintenance services performed by operator/crew
maintenance and includes additional services which are
allocated to organizational maintenance.
Table 4-1. Organizational Preventive Maintenance Checks and Services
ITEM TO BE INSPECTED
Check that engine oil has been changed at the required intervals and that the oil filter element has been
replaced as scheduled. Check crankcase oil level and, if necessary, add oil to bring the level to the
Check restriction indicator mounted next to the control panel. If it indicates that the air cleaner must be
serviced, proceed as described in paragraph 3-10. Remove the precleaner and clean out any
accumulated dirt or debris.
Do not fill the fuel tank while the engine is running. Flammable vapors are released
while the tank is being filled, and a park from the engine could ignite them.
Check fuel level on gage mounted on fuel tank. Check that the fuel in the tank is free of moisture and
Check battery condition with a hydrometer. A fully charged battery has a temperature correct specific
gravity reading of 1.275 at 750F. Charge the battery if the specific gravity is 1.250 or less. See
paragraph 4-37 for procedures.
Check muffler, pipes and manifold for damage and leaks. Check weather cap for proper operation.
Repair as necessary.
Walk around the pump unit and visually inspect for loose or missing bolts, screws, hoses, fittings or
other parts. Tighten or repair as necessary. Check tires for 40-psi inflation and fill them if necessary.
SUCTION AND DISCHARGE LINES
Check that all line connections are tight and that lines are free from severe abrasions, cracks, flatted
areas, and obstructions.
Check for dirt or water in the fuel bowl. Service if necessary (para 3-11). If moisture or dirt in the fuel
bowl is evident, check fuel supply for contamination.