o Loosen the two setscrews (1 and 2) on each of the flanged bearing assemblies
(3 and 4). Remove the two screws (5), lockwashers (6), and flat washers (7)
from each bearing assembly and the flanged bearings.
o Remove the three screws (10), nuts (11 and 14), lockwashers (12), six flat
washers (13), and two take up plates (8 and 9).
o Remove the spacer (15) from the shaft (16), loosen the two lockscrews (17 and
18), and tap the sprocket (19) loose from the hub (20).
Remove the shaft,
with the sprocket, spacer (21), and hub, from the conveyor assembly.
o Remove the spacer (21), sprocket, and drive the hub (20) from the shaft.
Remove the key from the shaft (22).
Install the idler sprocket assembly following the steps outlined:
o Install the hub (20) and key (22) on the shaft (16). Position the sprocket
(19) and spacer (21) on the shaft. DO NOT SECURE THE SPROCKET TO THE HUB.
o Install the shaft (16) with the spacer (21) and sprocket (19) positioned on
the shaft in the conveyor assembly.
Once the shaft is positioned, install
the sprocket on the hub (2) with the lockscrews (17 and 18). DO NOT TIGHTEN
THE LOCKSCREWS. Install the spacer (15) on the shaft.
o Install the nut (24) on the adjusting rod of both take
up plates (8 and 9).
Insert the rod through the bracket (23) and install the
nut (14). Insert the
ends of the shaft (16) through the take up plates and
secure each plate to
the conveyor assembly by installing three screws (10),
lockwashers (12), and
o Insert the ends of the shaft (16) through each flanged bearing assembly (3
and 4) and secure each bearing to the take up plate with two screws (5),
lockwashers (6), and flat washers (7).
o Aline the sprocket (19) with the center of the conveyor and tighten the two
lockscrews (17 and 18). Install and tighten the four setscrews (1 and 2).
o Install and adjust the conveyor chain assembly tension (TM 9-2350-267-10).