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TM 9-4110-257-14
b. Installation.
CAUTION
A new flywheel must have two groupings of three punch marks in the same position as the old
flywheel to allow proper timing of the engine.
NOTE
When installed, the indicator mark on the shroud will point to the furthest counterclockwise
punch mark in a grouping of three when the corresponding piston is at top dead center of the
compression stroke. The other two punch marks should then be at 170 and 22° respectively
from vertical.
(1) Place the old flywheel (13) on top of new flywheel using the keyways (17) as reference to align them. Locate the
two groupings of three punch marks (18) on the old flywheel and make punch marks on the new flywheel in as close
to the same position as possible.
(2) Install alternator magnet (16) and five screws (15).
(3) Install key (14) and flywheel (13).
(4) Install screen (12), washer (11), and nut (10).
(5) Torque nut (10) to between 2393 ft LB and 2925 ft LB (3245 Nm and 3966 Nm).
(6) Install shroud (9), three flat washers (8), and screws (7).
(7) Install flat washer (6) and screw (5).
(8) Install two screws (4).
(9) Install cylinder casing (3), two flat washers (2), and screws (1).
NOTE
FOLLOW-ON MAINTENANCE:
Close left front bottom door.
Close left side condenser door.
5-103
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