TM 9-2330-235-14&P
4-51.
c.
ASSEMBLY
CAUTION
Inside diameters of lower thrust bearing two races are different. The race with the larger inside diameter
must be up, against worm gear. Improper assembly will result in damage to thrust bearings and worm
gear.
1. Stand support (8) on end and position lower thrust bearing (7) on support.
2. Position box (5) over thrust bearing (7) and support (8).
3. Lubricate worm gear (3) and upper and lower thrust bearings (2 and 7) liberally with grease. Install worm gear,
small end down, in box (5) on lower thrust bearing (7).
CAUTION
Inside diameters of upper thrust bearing two races are different. The race with the larger inside diameter
must be down, against worm gear. Improper assembly will result in damage to thrust bearings and worm
gear.
4. Install upper thrust bearing (2) on worm gear (3).
5 Position support (1) over upper thrust bearing (2) on box (5).
Aline holes in box and supports and install three
screws (31), new lockwashers (10), and nuts (9). Do not install screws nearest cover of worm gear (3). Ensure
that worm gear turns freely in box.
TA504733
4-126
