TM 55-1520-240-23-5
6-214.1
REPAIR ENGINE TRANSMISSION OIL COOLER OUTSIDE SURFACE
(Continued)
6-214.1
6.
Acid etch reworked area as follows:
a.
Prepare solution of 3 parts acetic acid (E21)
in 7 parts water. Wear gloves (E186) and
goggles.
b.
Swab area with solution for 2 minutes. Use
gauze sponges (E184).
c.
Rinse area with cold water.
7.
Fluorescent inspect reworked area to check for
cracks (TM 1-1500-335-23). There shall be
no cracks. If crack is suspected in the engine
transmission oil cooler outside, refer to TM
1-1520-253-23.
8.
Clean reworked area with naphtha (E245) and
clean cloths (E120). Wear gloves (E186). Let
area air dry.
9.
Swab on solution of alodine powder (E65) and
water. Use gauze sponges (E184). Swab for 2
to 5 minutes. Rinse area with cold water and
let air dry.
10.
Apply epoxy primer (E293) to reworked area. Let
air dry for 2 hours.
11.
Apply black lacquer topcoat (E215).
INSPECT
FOLLOW-ON MAINTENANCE:
None
END OF TASK
6-702
