TM 1-1520-238-23
6-376
Change 4
6.86.
HEAT EXCHANGER INSTALLATION – continued
6.86.3. Installation
a. Install tee (1) on heat exchanger (2). Torque
union (6) to 245 INCH-POUNDS. Torque jam nut
(3) to 345 INCH-POUNDS.
(1) Lubricate new packings (4) and (5). Use
lubricating oil (item 118, App F) or lubricating
oil (item 119, App F).
(2) Install packing (4) on union (6).
(3) Install union (6) in tee (1).
(4) Torque union (6) to 245 INCH-POUNDS. Use
torque wrench.
(5) Hand tighten jam nut (3) on tee (1).
(6) Install packing (5) on tee (1).
(7) Install tee (1) in heat exchanger OUT boss
(7).
NOTE
For left exchanger, position tee so that
union points up. For right exchanger,
position tee so that union points aft and
down.
(8) Torque jam nut (3) to 345 INCH-POUNDS.
Use torque wrench and crowfoot.
b. Install union (8) on exchanger (2). Torque union
(8) to 245 INCH-POUNDS.
(1) Lubricate new packing (9). Use lubricating oil
(item 118, App F) or lubricating oil (item 119,
App F).
(2) Install packing (9) on union (8).
(3) Install union (8) in heat exchanger IN boss
(10).
(4) Torque union (8) to 245 INCH-POUNDS. Use
crowfoot and torque wrench.
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