REPAIR TRANSMISSION SUMP (AVIM)
Procedure is same to repair sump
from forward, aft, or combining
transmission. Typical repair of forward
transmission sump shown here.
Inspect sump (1) for extent of damage. If damage
is not through the sump, go to step 2. If damage
goes through the sump, no repair is allowed.
Clean sump (1) for 3 inches beyond damage
(2). Use acetone (E20) and cloths (E120). Wear
File or sand damage (2) down to undamaged
area with file or abrasive paper (E7). File or sand
damaged area (3) to a round or oval shape.
Taper depth of area to the outside surface of
Clean sump (1) for 1.5 inches beyond damaged
area (3). Use acetone (E20) and cloths (E120).
Wear gloves (E184.1).
Measure depth of damaged area (3). Record
depth to nearest 0.01 inch. If depth is more than
0.090 inch, no repair is allowed.
Cover sump (1) around cleaned area (4) with
Teflon tape (E399) (5).