169
Gearbox Power Train Figure 1
2.2. AIRSCREW SHAFT
Airscrew shaft (1) (Ref. Fig. 2) is made of heat-treated high-grade alloyed steel. The hollow shaft has
at its front end a round flange with end face splines and six holes for airscrew attachment bolts.
The shaft is installed with its rear cylindrical shank in the bushing of the crankshaft front end bearing
the rear support for the airscrew shaft.
Arranged on the outer cylindrical surface of the airscrew shaft are steel bushing (2), sealing collar (3)
oil baffle (4) radial ball bearing (8), thrust ring (9) and spacer (31). The spacer carries bushing (11) of oil
sealing rings with rings (32).
Satellite cage (28) is installed on the airscrew shaft longitudinal splines.
Three splines of the airscrew shaft has longitudinal grooves to supply oil to satellite pivots.
All these parts are braced by nut (20) and are safetied with a lock which is secured to the nut by
screw (21).
Two holes are drilled on cylindrical portions of the airscrew shaft for transfer of oil to the airscrew hub
and back through the speed governor to the engine oil system.
Aluminium plug (33) is pressed. Into the front end of the airscrew shaft hollow. The plug has a hole
communicating with the airscrew shaft hole. The hole serves to supply oil from the speed governor to the
airscrew hub. The longitudinal slot in the plug rear part communicates the airscrew shaft hollow with the rear
annular space of oil sealing ring bushing (11).
The oil supply holes of the plug and airscrew shaft are aligned by the match marks. Three set screws
extending through threaded holes in the front part of the airscrew shaft and holes in the plug secure the latter
in a strictly definite position relative to the shaft.
Steel adapter bushing (34) is pressed into the oil supply hole from the plug front side. The oil supply
system of the gearbox ensures one-passage operation of the airscrew. The airscrew shaft plug internal
thread, is intended to connect the airscrew oil line.
Steel spacer (31) has a copper plated inner surface. The spacer is provided with two oil supply holea
whose ends brought to the inner surface have semi-circular depressions to compensate for partial
misalignment between the holes of the airscrew shaft and the spacer. Provided at the rear part of the spacer
is an inner collar with splines for fixing it on the airscrew shaft.
The steel oil sealing ring bushing is floating along the spacer and is intended to transfer oil to the
speed governor and airscrew through the appropriate oil passages in the airscrew shaft and crankcase.
Two inner annular grooves with elongated holes serve to pass oil flowing to the airscrew through the
speed governor and back.
Three annular grooves for cast iron oil sealing rings are made on the outer surface of the bushing.
Each groove receives two rings.
Oil sealing rings (32) rest on the inner surface of the steel bushing pressed in the gearbox housing.
Содержание M-14P
Страница 6: ...19 Engine M 14P Front View Figure 1...
Страница 7: ...20 Engine M 14P Rear View Figure 2...
Страница 27: ...40 Arrangement of Airborne Tools in Case Figure 1...
Страница 39: ......
Страница 44: ...57 Engine M 14P Test Run Chart Figure 201...
Страница 67: ...80...
Страница 163: ...176 Crankshaft Thrust Ball Bearing Front Cover Figure 1 Intermediate Crankcase Figure 2...
Страница 166: ...179 Intermediate Grankcase Front Portion Figure 3 Intermediate Crankcase Rear Portion Figure 4...
Страница 173: ...186 Front view Cylinder Figure 1 Rear view...
Страница 174: ...187 1 Inlet Valve 2 Outer Spring 3 Inner Spring 4 Split Retainer 5 Valve Plate Inlet Valve Figure 2...
Страница 178: ...191 Intake Pipe of Cylinders Nos 4 5 and 6 Figure 4 Piston Piston Rings and Piston Pin with Plugs Figure 5...
Страница 180: ...193 Timing Mechanism Schematic Diagram Figure 6 Cam Plate Figure 7...
Страница 189: ...Blower Longitudinal Section View Figure 1...
Страница 191: ...Rear view Mixture Collector Figure 2 Diffuser Figure 3...
Страница 194: ...1 Plate 2 Spring 3 Plate 4 Gear 5 Accessory Drive Shaft Blower Coupling Figure 4...
Страница 204: ...Oil Sump Figure 4...
Страница 216: ...Engine M 14P Gear Train Figure 1...
Страница 247: ...Carburetor AK 14P Operation Diagram Figure 1...
Страница 249: ......
Страница 267: ...OPERATIONS AND TECHNICAL REQUIREMENTS CORRECTIVE ACTIONS CH ECKED BY Carburetor AK 14P Right Side View Figure 201...
Страница 273: ...Carburetor Altitude Control Needle Position Versus Barometric Pressure Barometric Graph Figure 203...
Страница 274: ......
Страница 282: ......
Страница 283: ......
Страница 288: ...T t en 0 CO 0 T K D fi h0 Ol f 01 3 0 F4...
Страница 293: ......
Страница 309: ...SPARK PLUG SD 49SMM MAINTENANCE PRACTICES 1 LIST OF TASK CARDS Title Task Card Uo Removal 201 Installation 202...
Страница 344: ...Generator Electrical Connection Diagram Commutator Side View Figure 3 1 Main Pole 2 Interpole...
Страница 355: ......
Страница 358: ......