FIGURE 3-57. Adjusting Retainer Nut

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FIGURE 3-56. Adjusting Roller Bearings

TM-55-1905-223-24-5 Bowthruster Engine for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

ASSEMBLY

TM 55-1905-223-24-5

(a) Tighten the retainer nut until the shaft requires 60 in-lb of force to turn.

(b) Back off the retainer nut 3-1/4 - 4-1/4 notches. See FIGURE 3-57.

(2) Dial indicate the end play as follows:

(a) Set PTO on supporting blocks with the clutch shaft in a vertical position with the input end down.

(b) Attach an eyebolt in the 1/4 PTF thread at the output end of the shaft. (Models which do not

have this hole will have to be inverted with the input end up, and clearance at the output end

below, for dial indicator mounting. An extra hub nut with a loop shaped strap welded to it can be

used to apply the pushing and pulling forces required during end play check.) See FIGURE 4-19 .

CAUTION

Select lifting eyebolts to obtain maximum thread engagement with bolt shoulder

tight against housing. Bolts should be near but should not contact bottom of bolt

hole.

FIGURE 3-57. Adjusting Retainer Nut.

3-84