TM 5-4930-244-14
f. Oil Pressure Switch. (Refer to Figure 4-35).
(1)
Removal.
(a)
Refer to e. (1) above and drain engine oil.
(b)
Unscrew pressure switch (1) and pressure transmitter (2) from tee (3).
(c)
Remove tee (3), nipple (4) and straight adapter (5) from engine crankcase.
(2)
Repair.
Inspect all parts for damage. Replace parts as needed.
(3)
Installation.
(a)
Wrap all pipe threads with Teflon tape before installation.
(b)
Assemble straight adapter (5), nipple (4) and tee (3) Install assembled parts in engine crankcase. Branch
on tee (3) should be pointing up.
(c)
Install pressure transmitter (2) and pressure switch (1) in tee (3).
(d)
Refer to Figure 4-38 and lift out the dipstick (7) from the engine crankcase (5).
(e)
Fill the engine crankcase (5) to the top of the narrow section on the dipstick (7) to the 'H" mark (about 2 1/4
quarts).
(f)
Install the dipstick (7) into the engine crankcase (5).
(g)
Start the engine and run it a few minutes to circulate the oil and check for leaks.
(h)
Stop the engine and allow time for the oil to settle and re-check the level on the dipstick (7).
(i)
Add more oil if necessary.
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