Section II. SERVICING AND LUBRICATION INSTRUCTIONS
This section contains instructions necessary to perform periodic servicing and lubrication. For detailed instructions refer
to Chapter 3, Section I.
Change Fuel Filters. Remove and inspect fuel filters (see paragraph 4-42).
Drain Water Trap. Open draincock on the bottom of the water trap and drain until fuel comes out.
If the air restriction indicator has been tripped, it must be reset after changing the filter element.
Change Air Cleaner Filter Elements. Remove and inspect air cleaner filter element. If clogged or dirty, clean.
Replace if damaged (see paragraph 4-44).
Check Crankcase Oil Level (See Figure 4-1).
Remove the dipstick and check the crankcase oil level.
The oil level must be kept between the FULL and ADD marks on the dipstick. If the level is below the
ADD mark, add oil as necessary (see Chapter 3, Section I).
Change Crankcase Oil and Oil Filter.
Oil should be drained when the engine is warm. Warm oil will flow faster and carry out any fine
sediment with It.
(1) Remove drain plug from oil pan and drain oil.
(2) Replace oil filter element (see paragraph 4-41).
(3) Install crankcase drain plug and add oil to crankcase (see Figure 4-1).
Do not overfill the crankcase. The oil level must never be higher than the FULL mark on the
dipstick or damage to the engine may occur.
(4) Check oil level. The oil must never be above the FULL mark on the dipstick. Drain oil as necessary to
achieve the correct level in the crankcase.
Section III. UNIT PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS)
To ensure that the vehicle is ready for operation at all times, it must be inspected within designated intervals
so that defects may be discovered and corrected before they result in serious damage or failure.
Table 4-1 is a tabulated listing of preventive maintenance checks and services (PMCS) to be performed by
unit maintenance personnel.
All deficiencies and shortcomings, as well as the corrective action taken, will be recorded on DA Form 2404
as soon as possible.
4-4. PMCS PROCEDURES.
The item numbers on the tabulated listing indicate the sequence of the PMCS. Perform the PMCS at the
intervals shown below:
(1) Do your Quarterly (Q) PMCS once every three months.
(2) Do your Semiannual (S) PMCS once every six months.