TM 5-3825-230-14&P
5-15.
FRONT SUPPORT REPLACEMENT (CONT).
b.
Cleaning/Inspection. Measure clearance between crankshaft and bearing using a micrometer by subtracting
OD of crankshaft from ID of bearing. Clearance must be 0.0019 to 0.0031 in. (0.05 to 0.08 mm). If out of
tolerance refer to para 5-14, Cleaning/Inspection step (4).
c.
Installation.
(1)
If removed, install bearing (7) in front
support (6).
(2)
Install front support (6), two lockwashers
(4), and screws (3) using a ratchet and 13
mm socket.
CAUTION
Do not overheat gear. Damage may
result.
NOTE
If heated properly, gear will drop
onto shaft easily.
(3)
Heat gear (1) and install on crankshaft (2)
using pliers and/or mallet.
NOTE
Follow-on maintenance:
•
Install
tachometer
gear
wheel
and
housing (para 5-11)
•
Install speed governor (para 5-34)
•
Install oil pump gear wheel (para 5 -27)
•
Check engine timing (para 5-7)
END OF TASK
5-32
