TM 5-3805-255-14
0039
REMOVAL CONTINUED
00039
3. Loosen nuts from both ends of oil outlet pipe (Figure 3, Item 5) and oil inlet pipe (Figure 3, Item 6).
4. Disconnect turbocharger oil supply line (Figure 3, Item 3) from filter head (Figure 3, Item 4).
NOTE
It will be necessary to push the oil inlet and outlet pipes up into the filter head as far as
possible to enable the head to be removed from under the water manifold.
5. Remove three capscrews (Figure 3, Item 2) and filter head (Figure 3, Item 4) from cylinder head (Figure 3,
Item 1).
Figure 3. Oil Filter Head.
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END OF TASK
CLEANING AND INSPECTION
00039
1. Clean filter head and all other parts IAW General Maintenance Instructions (WP 0019).
2. Flush out oil inlet and outlet pipes and clean pressure regulating valve housing.
3. Check pressure regulating valve spring for proper length, action, and condition. A spring outside of these
standards must be replaced.
a. Free length - 2.565 in. (65.15 mm).
b. Test length - 1.711 in. (43.41 mm).
c.
Test load - 17.5 lb (78 N).
4. Check pressure regulating valve.
a. Outside diameter - 0.747 to 0.748 in. (18.97 to 19.00 mm).
b. Valve bore - 0.750 to 0.752 in. (19.05 to 19.10 mm).
c.
Running clearance - 0.002 to 0.005 in. (0.05 to 0.13 mm).
0039-3
