FIGURE 4-24. Pilot Bearing (PTO/SL-111)

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Dial indicate the end play

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

Dial indicate the end play-cont.

TM 55-1905-223-24-5

x. Carefully slide the PTO assembly (5) onto over the clutch shaft, until sleeve (17) clears key (33).

Lower PTO assembly, tapping key (33) down into position and engaging the trunnions of the collar

(17) with the yoke (19) and routing the flexible hose (24) clear of the moving parts to the hole on the

inside of the PTO housing (44).

y. Push the fitting (23) through the hole in the PTO housing (44) and secure it in place with the

lockwasher (25) and nut (26). Install the lubrication fitting (27) into the hose fitting.

z. Install the hub nut lockwasher (3) onto the clutch shaft (34), locating its lower tab in the spot drilling

provided on the hub and back plate. Install the hub nut (2). Tighten the nut (2) to remove all

clearance, applying 30 ft-lb. torque. Then tighten the nut 60-90further. Bend the lockwasher (3)

against a flat on the nut.

CAUTION

The pilot roller bearing has an inner race that is

removable from the outer race roller and seal

assembly. Due to this construction, axial alignment

of the inner and outer races is most important.

aa Press the pilot bearing (1) on the clutch shaft (34). Solidly support the output end of the clutch shaft

(34) during installation of the pilot bearing (1). Also, apply the force to the inner race of the pilot

bearing (1) during installation. Don't press the pilot bearing all the way onto the shaft. Leave a

distance of 0.06-inch between the front face of the bearing inner race and the end of the clutch shaft.

FIGURE 4-24. Pilot Bearing (PTO/SL-111).

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