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 TM 55-1905-242-14
0216 00
ASSEMBLY--PRIMARY DRIVE ASSEMBLY
NOTE
Before starting this assembly, the drum must be mounted between the final and primary
housing, secured to the winch base according to the instructions in the Assembly--
Drum into the Winch Base procedure in this work package.
1.
Set the partly completed winch on end so that it rests on the end of the primary drive housing (33). Check that the drum
bearing that is carried in the primary drive housing has been thoroughly packed with grease.
2.
Lubricate the O-ring (27) and oil seal (28) with grease and install it in its groove in the seal ring (29).
3.
Install the oil seal (28) in the seal ring (29) so that the back of the oil seal contacts the shoulder in the seal ring bore. Give
the O-ring (27) and oil seal an additional coat of grease and install the seal ring in the bore of the primary drive housing
(33) so that the lip of the oil seal is out towards the open end of the primary drive housing. Tap the seal ring into place
with a soft hammer so that it locates against the snap ring (30) that was previously installed.
4.
Install the primary planet assembly (26) so that the projecting boss locates in the bushing at the end of the drum. When
this assembly is in place, rotate it by hand to make sure that it is free to turn. Check that the spacer (21) is in place in the
primary planet assembly.
5.
Assemble the brake ring (24) and snap rings (23) on the brake hub (22).
6.
Install the brake hub (22) so that the sun gear engages with the gears in the primary planet assembly (26).
ASSEMBLY--FINAL PLANET ASSEMBLY
1.
Install the snap rings (20) in the bore of the planet gear (18).
2.
Press the ball bearings (19) into the planet gear (18) so that the ends of the bearings shoulder against the snap rings (20).
3.
Place the planet gear (18) into the planet hub (11) so that the bore of the bearing (19) lines up with a final planet pin hole.
4.
Install a final planet pin (17) in the planet hub (11) so that it passes through the ball bearings (19) in the planet gear (18) and
the drilled hole in the final planet pin lines up with the hole in the rim of the planet hub.
5.
Install the pin (16), using a 3/16 inch diameter pin punch, and drive the pin (16) in until the outer end of the pin is 7/16 inch
below the outside diameter of the planet hub (11).
6.
Repeat steps 1-5 for the remaining planet gears (18) and check that all gears turn freely.
ASSEMBLY--FINAL DRIVE ASSEMBLY
NOTE
Before starting this assembly, the drum must be mounted between the final drive and
primary housings and secured to the winch base according to the instructions in the
Assembly--Drum into the Winch Base procedure in this work package.
1.
If removed during disassembly, install the O-ring (14) on the sun gear shaft (12).
2.
Lubricate the O-ring (14) with grease and install it over the taper seal ring (15) that is installed on the sun gear shaft (12).
3.
Check that the snap ring (13) is in place on the sun gear shaft (12) and install the sun gear shaft in the winch so that it
engages in the splined bore of the planet hub (11). Slide the sun gear shaft in until the snap ring contacts the end of the
planet hub. At the same time, the O-ring (14) will contact the seal face on the end of the drum (52) and be pushed up the
tapered diameter of the tapered seal ring (15).
0216 00-12
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