TM 5-3895-383-24
Oil Filter Base
Typical Example
(1)
Oil filter bypass valve to open at...................140 ± 30 kPa
(18.1 ± 4.4 psi)
9L9188 Spring for bypass valve:
Outside diameter ....................................... 11.2 mm (.44 in)
Free length ...............................................57.9 mm (2.28 in)
Assembled length....................................43.2 mm (1.70 in)
Load at assembled length................................15.6 ± 1.3 N
(3.5 ± .3 lb)
(2)
Put 9S3263 Thread Lock on the last 7.5 ± 1.5 mm (.30 ±
.06 in) of the threads at base end of stud and tighten
filter element stud to ..........................................68 7 Nm
(50 ± 5 lb-ft)
(3)
Put clean engine oil on the filter seal. Tighten filter until
seal makes contact with filter base. Turn the filter 270
degrees (3/4 of one turn) more.
Engine Oil Pressure
All steps of this procedure must be followed for the pressure
findings to be usable.
1.
Be sure that the engine is filled to the correct level with
SAE 10W30 oil. If any other viscosity of oil is used, the
information in the Engine Oil Pressure Graph does not
necessarily apply.
2.
Remove the oil pressure switch and conned the 1U5470
Engine Pressure Group to the main oil manifold at the
location from which the oil pressure switch was
removed.
3.
Run the engine to get the engine oil temperature at
99C (21F).
NOTE:
A 31°C (51°F) increase in temperature gives
approximately 7 kPa (1 psi) decrease in engine oil
pressure.
NOTE:
Make sure engine oil temperature does not go
above 115°C (239°F).
4.
Keep the engine oil temperature constant with the
engine at its rated rpm and read the pressure gauge.
5.
On the Engine Oil Pressure Graph, find the point that
the lines for engine rpm and oil pressure intersect
(connect).
6.
If the results do not fall within the "ACCEPTABLE"
pressure range given in the graph, find the cause and
correct it. Engine failure or a reduction in engine life can
be the result if engine operation is continued with oil
manifold pressure outside this range.
NOTE:
A record of engine oil pressure, kept at regular
intervals, can be used as an indication of possible
engine problems or damage. If there is a sudden
increase or decrease of 70 kPa (10 psi) in oil
pressure, even though the pressure is in the
"ACCEPTABLE" range on the graph, the engine
should be inspected and the problem corrected.
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