Install bearings and gears by hand, if possible.
a. If removed, press annular ball bearing (1) into auto gun receiver (2) until annular ball bearing is seated.
b. Insert bevel gear (3), beveled side out, into hole (4) and annular ball bearing (1).
c. Press bevel gear (3) into auto gun receiver (2) until it is seated.
INSTALLATION - Continued
2. INSTALL SHOULDERED DRIVE SPROCKET SHAFT.
a. Insert threaded end of shouldered drive sprocket shaft (5) through mechanical housing (6). Install new self-locking nut (7).
b. Hold shouldered drive sprocket shaft (5) by the flats and torque self-locking nut (7) to 325 in.-lb ± 25 in.-lb (36.73 N-m ± 2.83 N-m).
a. If removed, install new plain encased seal (8), with metal ends up, evenly into large hole (9) in auto gun receiver (4) until metal end of seal is flush with surface of auto gun receiver.
b. Place splined end of spur assembly gear (10) into auto gun receiver (4).
4. INSTALL SPUR GEAR CLUSTER.
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