(b)
If you replace the O-rings, install the new O-rings: 1) Apply a light layer of clean engine oil on the O-rings.
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2) Install the O-rings in the grooves on the seal housing (OD), static seal case (OD), and rotating ring (ID).
(c) Apply a light layer of clean engine oil on inner seal housing:
1) Apply the oil on the surface of the inner seal housing which will touch the O-ring on the outer diameter of the static seal case.
CAUTION: MAKE SURE THE FACE OF THE STATIC SEAL CASE THAT TOUCHES
_______ THE CARBON SEAL IS THE POLISHED SURFACE. IF YOU INSTALL THE SEAL INCORRECTLY, DAMAGE TO THE SEAL CAN OCCUR.
(d) Install the static seal case and the rotating ring assembly in the seal housing.
NOTE: The seal case and the rotating ring are kept together
____
as an assembly, divided by tissue paper.
1) Make sure the polished face of the static seal case is opposite the seal housing flange.
(e)
Install the retaining ring in the groove of the seal housing to attach the seal case in the housing.
(f)
Remove the rotating ring but do not let it move across the face of the seal case.
(g)
Remove the tissue paper.
CAUTION: MAKE SURE THE POLISHED FACE OF THE SEAL CASE AND THE
_______ CARBON FACE OF THE ROTATING RING ARE CLEAN. LEAKS WILL RESULT IF PARTICLES, EVEN OF A VERY SMALL SIZE, ARE BETWEEN THESE PARTS DURING THE INSTALLATION.
(h)
Apply a layer of clean engine oil to the carbon seal face of the rotating ring and the polished face of the seal case.
(i)
Carefully install the rotating ring on the seal case:
1) Make sure the carbon seal touches the polished surface of the seal case.
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CFM56 ENGINES
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2) Align the rotating ring with the internal diameter of the seal housing.
(j) Apply a light layer of clean engine oil to the bearing surface of the gear shaft that will touch the rotating ring O-ring.
CAUTION:_______DO NOT HIT THE MAGNETIC SEAL INTO THE GEARBOX RECESS. THE ROTATING RING AND SEAL CASE CAN MOVE APART AND THE CARBON SEAL CAN BE DAMAGED.
CAUTION: THE ROTATING RING AND THE STATIC SEAL CASE OF THE MAGNETIC
_______ SEAL MUST BE INSTALLED TOGETHER ON THE GEAR SHAFT UNTIL THE SEAL HOUSING TOUCHES THE GEARBOX. DO NOT SLIDE SEPARATELY THE ROTATING PART OF THE SEAL ONTO THE SHAFT. THIS WOULD CAUSE IMPORTANT OIL LEAKAGE. IF YOU DO NOT OBEY THIS PROCEDURE, YOU CAN CAUSE DAMAGE TO THE EQUIPMENT.
(k)
Put the magnetic seal on the gear shaft.
1) Make sure the outer O-ring of the seal housing touches the gearbox bearing housing.
(l)
On the generator drive pad, install the shroud on the gear
shaft and gearbox studs.
(m)
Apply a light layer of graphite grease to the three gearbox
studs.
(n)
Install the nuts and washers on the studs:
1) Tighten the nuts with your fingers.
2) Make sure the washers touch the seal housing.
(o)
Tighten the nuts in a sequence until the seal housing goes
fully into its position.
(p)
Tighten the nuts to 55-60 pound-inches (6.2-6.8 newton-meters).
S 412-035-C00
(4) Do one of these applicable tasks to remove access to the seal:
(a) To install the fuel pump, do this task: Fuel Pump Package
Installation (AMM 73-11-01/401).
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