Assemble winch

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Inspection of primary drive assembly

TM-55-1905-217-34 Landing Craft Mechanized; Steel; DED; Overait Length 74 Feet Mod 1 Marl VIII Navy Design LCM-8 Manual

Assemble the final planet assembly

TM 55-1905-217-34

(a) Install oil seal (4, fig. 4-43) in the small seal ring (3) so that the lip of the oil seal is at the end

of the seal ring farthest from the preformed packing groove. Lubricate preformed packing (2) with grease and

install it in the groove on the outside diameter of the seal ring. Lubricate the oil seal, give the preformed

packing an additional coat of grease, and install this seal assembly on the non-splined end of the drum (20) so

that the lip of the oil seal is towards the drum. Be careful not to damage the lip of the oil seal as it is pressed

over the taper of the seal diameter of the drum. Pack the seal with grease around the seal diameter of the

drum.

(b) Install oil seal (14) in the large seal ring so that the lip of the seal is at that end of the seal ring

which has the projecting diameter at the bore. Lubricate preformed packing (16) with grease and install it in the

groove on the outside of the seal ring. Lubricate the oil seal, give the preformed packing an additional coat of

grease and install this assembly on the splined end of the drum (20) so that the lip of the oil seal is towards the

drum. Be careful not to damage the lip of the oil seal as it is pressed over the taper on the seal diameter of the

drum. Pack the seal with grease around the seal diameter of the drum.

diameter of the bearing is installed towards the drum. Pack the bearing thoroughly with good quality ball

bearing grease.

(d) Install bearing (18) on the splined end of the drum (20) so that the snap ring on the outside

diameter of the bearing is installed towards the drum.

(e) Install the hondu (9) in its slot in the drum (20) so that the small end of the hondu enters the

wide end of the slot.

(f) Press bushing (5) into the drum (20) using a sizing mandrel that is 2.1885 inch diameter.

Install the bushing so that the end of the bushing is flush with the end of the drum. Gearmatic tool No, B 1397

can be used to install this bushing.

(2) Assemble winch.

(a) Place the winch base (19, fig. 4-43) on the work bench so that the side which is to be the final

drive end of the winch is facing up.

(b) Attach the final housing (1, fig. 4-42) to the winch base using seven dowel bolts (6, fig. 4-43)

washers (7) nuts (8).

(20) which has previously been assembled with the seal and bearings and pilot the bearing on the splined end

of the drum into the bore of the final housing. Tap the drum assembly down until the snap ring on the bearing

at the splined end of the drum is properly seated on the end of the final housing bore. There will be

approximately 1/16 inch clearance between the final housing and the end of the drum flange when the bearing

snap ring is seated.

(d) Take the primary housing (21, fig. 444) and install snap ring (20) in the snap ring groove that

is closest to the large open end of the housing. Now pilot the primary housing over the bearing, on the plain

end of the drum (non-splined end) so that the dowel bolts (6, fig. 4-43) will locate in the flange of the primary

housing. Tap the primary housing on until its flange contacts the winch base using seven washers (7) and nuts

(8) on the dowel bolts (6).

(e) Torque load nuts (8) to 75 ft. lbs.

(3) Assemble primary drive assembly.

(a) Set the partly completed winch on end so that it rests on the end of the final housing. Check

that the drum bearing which is carried in the primary housing has been thoroughly packed with grease.

(b) Lubricate performed packing (17, fig. 4-44) with grease and install it in its groove in the seal

ring (19). Give the preformed packing an additional coat of grease and install the seal ring (19) in the bore of

the primary housing so that the countersunk seal face is out towards the open end of the housing (21). Tap the

seal ring (19) into place with a soft hammer so that it locates against the snap ring (20) which was previously

installed.

fig. 4-43) 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.

(d) Install the segments (10, figure 4-44) in the groove next to the internal teeth in the primary

housing (21). Install the retainer (9) in the groove formed on the inside of the segments (10), so that the ends

of the retainer (9) rest in center of one of the segments.

(e) Install the primary sun gear (11) in the primary planet assembly (12) so that the teeth on the

0. D. engage with the gears in primary planet assembly (12).

(f) Take the motor assembly (8) and place it on the work bench with the motor shaft end up.

Check that the brake piston is located 7/16 inch away from the gear housing. If necessary, tap the brake piston

down with a soft hammer, or pry it up by using two heel bars until the 7/16 inch gap is obtained. (g) Install the

motor assembly (8) in the primary housing (21) by holding it square with the end of the primary housing as it

enters the

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