(c)
Tighten the VSV HEAD fitting to 270-300 pound-inches
(30-34 Newton meters).
(d)
Tighten the TC1 fitting to 180-200 pound-inches
(20-25 Newton meters).
1) Install the flexible hose to the TC1 fitting.
2) Tighten the coupling nut to 270-300 pound-inches
(30-34 Newton meters).
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(e)
Tighten the TC2 fitting to 135-150 pound-inches (15-17 Newton meters). 1) Install the flexible hose to the TC2 fitting. 2) Tighten the coupling nut to 135-150 pound-inches
(15-17 Newton meters).
(f)
ENGINES WITH THE HPTCC TIMER; Tighten the TC3 fitting to 135-150 pound-inches (15-17 Newton meters). 1) Install the flexible hose to the TC3 fitting. 2) Tighten the coupling nut to 135-150 pound-inches
(15-17 Newton meters).
(g)
Tighten the PC fitting to 135-150 pound-inches
(15-17 Newton meters).
(h)
Tighten the PCR fitting to 135-150 pound-inches
(15-17 Newton meters).
(i)
Tighten the HEATED SERVO SUPPLY (FUEL OUT) fitting to 360-400 pound-inches (41-45 Newton meters).
(j)
Tighten the POC (PS12 line) fitting to 135-150 pound-inches (15-17 Newton meters).
(k)
Tighten the PB fitting to 180-200 pound-inches
(20-25 Newton meters).
(l)
Tighten the P6 fitting to 180-200 pound-inches
(20-25 Newton meters).
(m)
Tighten the CDP fitting to 180-200 pound-inches
(20-25 Newton meters).
1) Install the lockwire.
(n)
Tighten the CBP fitting to 135-150 pound-inches
(15-17 Newton meters).
1) Install the lockwire.
(o)
Tighten the UPPER OVERBOARD DRAIN fitting to
180-200 pound-inches (20-25 Newton meters).
1) Install the 90° elbow, but do not tighten.
(p)
Tighten the LOWER OVERBOARD DRAIN fitting to
135-150 pound-inches (15-17 Newton meters).
1) Install the 45° elbow, but do not tighten.
(q)
Tighten the P7 fitting to 135-150 pound-inches
(15-17 Newton meters).
S 434-018-C00
(5) Install the heated servo supply (FUEL-OUT) line between the servo fuel heater and the fitting on the MEC.
(a)
Tighten the coupling nuts to 340-375 pound-inches
(38-42 Newton meters).
(b)
Install the lockwire.
NOTE: It is easier to install the FUEL-OUT line before you
____
install the fuel pump assembly.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú C03 Page 431 ú Nov 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 864-040-C00
(6) ENGINES WITHOUT THE HPTCC TIMER; Do these steps if the TC3 and/or PC ports do not have plugs installed (Fig. 407, 408 and 409).
(a)
Install the new O-rings, lubricated with petrolatum, on each
hex-head plug.
(b)
Install the plugs in the TC3 and/or the PC ports.
(c)
Tighten the plugs to 40-60 pound-inches
(4.5-6.8 Newton meters).
S 034-041-C00
(7)
Remove the blanking plate from the fuel DISCHARGE port on the MEC to be installed.
S 434-042-C00
(8)
Install the blanking plate on the MEC that you removed.
(a) Tighten the bolts to 55-65 pound-inches (6-7 Newton meters).
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