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TM 9-2320-364-34-4
20-258
20-75. IDLER GEAR INSTALLATION (CONT).
(3)
Rotate idler gear (4) hub so dowel (5) aligns
with hole in end plate (6).
(4)
Tap hub until it seats against end plate (6).
(5)
Check timing marks again to make sure
gears are aligned as shown.
(6)
Install washer (7) and screw (8) tighten
screw (8) 80 to 90 lb-ft (108 to 122 N.m).
(7)
Lubricate bearing (9) and idler gear (4) teeth
liberally with lubricating oil.
NOTE
Minimum backlash is 0.002 in.
(0.051 mm). Maximum backlash
in 0.008 in. (0.203 mm). If
backlash is greater than 0.008 in.
(0.203 mm) or less than 0.002 in.
(0.051) replace idler gear (4).
(8)
Mount dial indicator on end plate and check
backlash between gears (2) and (4).
(9)
Install hub (10) with washer (11) and
screw (12). Tighten screw 80 to 90 lb-ft
(108 to 122 N.m).
b.
Follow-On Maintenance:
Install flywheel housing and rear oil seal, (Para 20-76).
END OF TASK
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