TM 5-4310-387-14
5-20. Oil Pressure Regulator (Cont).
b.
Repair.
(1)
Replace oil relief valve. (figure 5-26)
(a)
Ensure mating area between oil relief valve (1) and oil pressure regulator (3) is clean and all dirt and
debris is removed.
(b)
Remove oil relief valve (1) and preformed packing (2) from oil pressure regulator (3). Discard
preformed packing (2).
(c)
Install new oil relief valve (1) and new preformed packing (2).
Figure 5-26. Oil Relief Valve, Replace.
(2)
Replace sightglass. (figure 5-27)
(a)
Loosen two connector nuts (1) and move line (2) out of way.
(b)
Remove coupling (3).
(c)
Remove fitting (4), sight glass (5), two preformed packings (6), and washer (7). Discard preformed
packing (6).
5-58
