TM-9-2320-361-34
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
MAY 1992
TM-9-2320-361-34 - Page 63 of 764
TM 9-2320-361-34
3-4. VIBRATION DAMPER AND SEAL MAINTENANCE
(Contd)
c. Installation
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
3-12
Assemble vibration damper pulley bolt (10), washer (6), and adapter to form oil seal inserter.
NOTE
Oil seal must be installed with lip of oil seal facing out and extended
steel body towards vibration damper. Open side of oil seal is
positioned towards timing cover. Failure to install oil seal correctly
may result in oil leak.
Install new oil seal (1) in timing cover (2) with oil seal inserter on crankshaft (3). Tighten vibration
damper bolt until adapter contacts timing cover (2).
Remove vibration damper pulley bolt, washer, and adapter from timing cover (2) and crankshaft. (3).
Lightly coat the lip surface of oil seal (1) with new engine oil.
CAUTION
Vibration damper and pulley must be installed slowly on crankshaft
and into new oil seal. Do not crimp oil seal lip with end of vibration
damper and pulley assembly. Crimping of oil seal lip may
permanently damage oil seal and result in oil leak.
Install plug (7) in key way (8) of crankshaft (3).
Heat vibration damper and pulley (9) for thirty minutes at 200F (93.3°C).
WARNING
Hand protection must be worn at all times when handling heated
vibration damper and pulley. Failure to do so may cause injury to
personnel.
Aline plug (7) and key way (8) in vibration damper and pulley (9) and install vibration damper and
pulley (9) on crankshaft (3) until seated.
Assemble crankshaft driver tool as shown.
Install washer (6) against vibration damper and pulley (9) with crankshaft driver tool threaded into
end of crankshaft. (3).
Hold bolt and turn nut on driver tool clockwise until vibration damper and pulley (9) is seated on
crankshaft (3).
Loosen nut and remove crankshaft driver tool and washer (6) from crankshaft (3) and vibration
damper and pulley (9).
Install washer (6) and retainer bolt (10) against vibration damper and pulley (9) and crankshaft (3).
Tighten retainer bolt (10) 225-250 lb-ft (305-339 N.m).
Install lockplate (11) around retainer bolt (10) on vibration damper and pulley (9) with two new
lockwashers (5) and screws (4).
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