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CRANKSHAFT PULLEY AND FRONT OIL SEAL MAINTENANCE - TM-9-2320-386-24-1-20150
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/.5ton/TM-9-2320-386-24-1-2 Extended Service Program (ESP) for 2-1/2-Ton 6x6 M44A3 Series Trucks (Diesel) Manual
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CRANKSHAFT PULLEY AND FRONT OIL SEAL MAINTENANCE - continued
TM 9-2320-386-24-1-2
0304 00
CRANKSHAFT PULLEY AND FRONT OIL SEAL MAINTENANCE (Contd)
REMOVAL
1.  Remove four screws (3), plate (2), and crankshaft pulley (1) from crankshaft (4)
2.  Remove excluder (8) from crankshaft pulley (1). Discard excluder (8).
WARNING
Eye protection is required when performing drilling operations. Failure to
do so may result in injury to personnel.
3.
Drill three evenly spaced 0.161-in. (4.1-mm) diameter holes in front seal (5).
4.
Alternating between drilled holes, use slide puller with adapter to evenly remove seal (5) from front
housing (6). Discard seal (5).
CLEANING AND INSPECTION
WARNING
Skysol-100 mixture is combustible. Use mechanical ventilation whenever
product is used in a confined space, is heated above ambient
temperatures, or is agitated. DO NOT use or store near heat, sparks,
flame, or other ignition sources. Keep container sealed when not in use.
Contact with Skysol-100 may cause skin irritation. Use chemical
resistant gloves. In case of skin contact, remove any contaminated
clothing and wash skin thoroughly with soap and water. Wash
contaminated clothing before reuse. Eye contact may cause irritation,
tearing, or blurring of vision. Use face shield or goggles when eye contact
may occur. In case of eye contact, flush eyes with large amounts of water
for at least fifteen (15) minutes or until irritation subsides. Inhalation
may cause irritation to upper respiratory passages. DO NOT have food or
drink in the vicinity.
1.
Clean flange of crankshaft (4) and seal surface of crankshaft pulley (1) with Skysol-100 and dry
with lint-free cloth.
2.
Inspect seal surface of crankshaft pulley (1) for cracks, breaks, and gouges. Replace crankshaft
pulley (1) if cracked, broken, or gouged.
INSTALLATION
CAUTION
Crankshaft front seal must be installed with shipping sleeve in place.
Failure to comply may result in damage to equipment.
1.
Slide new seal (5) approximately .25 in. (6.4 mm) over end of crankshaft (4).
NOTE
Use plate and screws retained during crankshaft pulley in removal, step 1.
Properly installed seal will be countersunk .10 in. (2.5 mm) in front housing.
2.
Position seal installer and plate (2) on crankshaft (4) and finger-tighten four screws (3).
3.
Install seal (5) in front housing (6) by tightening four screws (3) until plate (2) contacts crankshaft (4).
4.
Remove four screws (3), plate (2), and seal installer from crankshaft (4).
5.
Install new excluder (8) approximately .25 in. (6.4 mm) on crankshaft pulley (1).
CAUTION
Crankshaft front seal shipping sleeve must be removed before installing
0304 00-2

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