TM-9-2350-277-20-4
CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 4 OF 6
TM-9-2350-277-20-4 - Page 69 of 861
TM 9-2350-277-20-4
REPAIR T130 DRIVE SPROCKET WHEEL ASSEMBLY — Continued
0421 00
INSTALLATION
1.
Place two cushions (4) on sprocket wheel
(3). Center short flat areas between mounting holes in sprocket wheel rim.
Press on cushion until firmly seated against flange of sprocket wheel.
.
2.
Place two sprockets (2) on sprocket wheel (3).
Secure with 20 new self-locking bolts (1).
TIGHTEN BOLTS TO
110-115 LB-FT (149-156 N•m) TORQUE.
3.
Mark sprockets (2) and cushions (4) for rotation check after road test.
FOLLOW-THROUGH STEPS
1.
Install drive sprocket wheel
assembly (WP 0420 00).
2.
Connect track and adjust tension (see your -10).
3.
Deleted.
4.
Unblock carrier (see your -10).
5.
Road test carrier to check that drive sprocket wheel assembly and cushion are installed right (WP 0155 00).
6.
After road test, check rotation of cushion with respect to sprockets. Measure from the outer edge of the cushion. Replace
cushion that rotates beyond 1 1/2 inches (4 cm) of initial position.
1 1/2 INCHES (4 CM)
MAXIMUM
ROTATION
ALLOWED
CUSHION
END OF TASK
0421 00-2
Change 3
Make sure you use matching sprockets.
New longer life sprockets are thicker and have
NOTE
one wear indicator on both sides of the sprocket teeth.
Use as a set when replacing them
on a sprocket wheel.
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