REPLACEMENT - TM-55-1905-223-24-50179

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INSPECTION

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

FIGURE 2-58. Bearing End Clearance

TM 55-1905-223-24-5

REPLACEMENT

Install the four levers (27, Sheet 2) and eight lever chain link plates (34) to the lugs on the sliding

sleeve (36) with eight lever link pins (33) and eight cotter pins (35). Spread the cotter pins (35) so their

ends do not exceed a 0.47-inch radius for operating clearance.

Install the split collar (40) halves and two shims (41) to the flange provided on the sliding sleeve (36).

Secure the collar assembly (37) to the sleeve (36) with two hexhead capscrews (39 and 43) and two

hex self-locking nuts (38 and 42). Tighten the hex self-locking nut (38 and 42) to 30 ft-lb torque.

Install the four levers (27), sliding sleeve (36) and collar (37) group as an assembly onto the adjusting

ring (28) and floating plate (31). Secure the levers (27) to the floating plate (31) with eight spring

washers (25), one on each side of each lever (27), four headless straight pins (24), and four cotter pins

(26). Spread the ends of the cotter pins.

Install pipe to tube elbow (7, Sheet 1) onto split collar (40, Sheet 2).

Install nonmetallic hose (6, Sheet 1) to pipe to tube elbow (7).

Install tube elbow (8) on nonmetallic hose (6).

Install lubrication fitting (11) onto tube elbow (8).

Pick up clutch assembly (4, Sheet 2) and lower over clutch shaft (18, Sheet 1) and into clutch housing

(16) engaging the trunions on the split collar (40, Sheet 2) with the throw yoke (15, Sheet 1), aligning

shaft (18) keyway with the keyway in the hub and back plate (20, Sheet 2). Install key (19).

Install the hub nut lockwasher (3) onto clutch shaft (18), indexing the washer lower tab in the spot

drilling provided on the hub and back plate (20, Sheet 2).

Install the hex hub nut (2, Sheet 1). Tighten hex hub nut to 30 ft-lb torque to seat tapers and remove

any clearances, then tighten hex hub nut an additional 150180rotation. Bend the hub nut

lockwasher (3) against a flat on the hex hub nut (2).

Route the nonmetallic hose assembly (5) free of moving parts, and push tube elbow (8) fitting through

hole (17) in clutch housing (16).

Install lockwasher (9) and plain hex jam nut (10) over tube elbow (8) fitting and secure tube elbow (8) to

clutch housing (16).

Solidly supporting the OUTPUT END of the clutch shaft (18), install the pilot annular ball bearing (1) as

follows:

2-159