Detailed Lubrication Information

d. Change oil and service the oil filter as described

3-2. Detailed Lubrication Information

in paragraph 3-3.

3-3. Engine Lubrication

a. Keep all lubricants in closed containers and store

in a clean, dry place away from external heat. Allow no

a. Engine crankcase lubrication consists primarily

dust, dirt, or other foreign material to mix with the

lubricants. Keep all lubrication equipment clean and

of changing the oil in the crankcase and servicing the oil

ready to use.

filter. Change oil every 50 operating hours and change

b. All external parts that do not require lubrication

the oil filter every 150 operating hours. Proceed as

must be kept free of lubricants. Before lubricating the

follows:

equipment, wipe dirt and grease from all lubrication

(1) Run the engine long enough to warm it to

points. To prevent accumulation of dirt, clean all

operating temperature. This is important since warm oil

lubrication points after you lubricate them.

will drain from the internal engine parts much more

c. You must take the following precautions when

rapidly than cold oil. The warm oil will carry more dirt

using a sub-zero engine oil:

and sludge with it as it drains.

(1) The crankcase oil level must be checked

(2) Place suitable containers under the engine

frequently, as oil consumption may increase.

drain ports and remove the oil pan drain plug (4, fig. 3-

(2) The oil may require changing more

2) and oil cooler drain plug (1). Allow the oil to drain

frequently than usual because contamination by fuel

fully.

dilution and sludge formation will increase under cold

weather operation conditions.

1. Oil cooler drain plug

4. Oil pan drain plug

2. Radiator coolant drain plug

5. Battery charging receptacle

3. Block coolant drain plug

Figure 3-2. Left side of engine housing showing drains and battery charging receptacle.

(3) Install plugs in the drain ports.

which will be encountered. Required grades of engine

(4) Remove the filler cap (11, fig. 3-3) from the

oils are as follows:

engine oil filler pipe and pour 4/2 quarts of engine oil

Below OF

0 to 32F

32 to 75F

Above 75F

into the engine. Use the engine oil required for the

5W-20

10W

SAE20W

SAE30

particular temperature range

3-4