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TM 10-4320-311-14
Figure 4-1. Oil Dipstick
CAUTION
Do not overfill with oil. Engine damage could result.
b.
Make sure the engine is perfectly level. Remove the dipstick and fill the crankcase with approximately 0.75 quart
of proper viscosity oil required by the ambient temperature. (Refer to Appendix H.)
c.
Check the oil level by inserting the dipstick all the way into the engine. Withdraw the dipstick Engine oil should
coat oil dipstick within the operating range. (Refer to Figure 4-1.)
d.
If oil coating is below the bottom "L" mark, add sufficient oil to bring oil level within the operating range.
e.
Again check oil level to be sure oil coats dipstick within the operating range.
f.
Insert the dipstick all the way into the engine, then tighten the dipstick.
g.
If oil coating extends above top "H" mark, loosen drain plug and drain enough oil to lower oil level to within the
operating range on oil dipstick
h.
Withdraw oil dipstick and wipe with a lint-free cloth (Appendix E, Section II, item 6). Check oil level to be sure oil
coats dipstick within the operating range
i.
Insert the dipstick all the way into the engine, then tighten the dipstick.
j
Check that there is no obstruction in front of the air intake opening that might impede the flow of cooling air.
k
Check that there is no obstruction that might hinder pull-rope action.
4-4
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