2.2. CONSTRUCTION
The 702ML pump (Ref. Pig. 1) comprises a rotary vane-type pumping unit, reducing valve unit with
priming valve and sealing parts.
The pumping unit comprises housing (33), rotor (20), four vanea (37), sleeve (19), floating pin (36),
bearings (21) and (18).
Pumping unit vanes (37) are lodged in slots of rotor'(20) and rest with one side on floating pin (36) and
with the other on the inner surface of sleeve (19). The rotor rests with ita journals on bearings (21) and (18).
The pumping unit is mounted in a cylindrical bore of housing (33). The pumping unit is fixed in position
with pin (9).
Pump housing (33) has two flanges: one for attaching the pump to the engine and the other for securing to
reducing chamber housing (7). The seal located in the cylindrical bore of housing (33) precludes ingress of fuel
from the pumping unit space to the engine drive and oil from the drive space to the pumping unit of the pump.
To check leakage of fuel and oil through the seal, two holes with tapered thread are made in housing (33).
The drain connection is screwed into one of the holes.
To connect to the engine, the flange of housing (33) has four bosses with holes and an aligning collar.
The reducing valve unit comprises reducing chamber housing (7), cover (26), reducing valve (6) parts,
priming valve (23) with spring (22).
Reducing chamber housing (7) has two flanges: one with the aligning collar for coupling with pumping unit
housing (33),the other for mating with reducing chamber cover (26).
To connect to housing (33) and cover (26), four holes, dia. 5.3 mm, and two threaded holes are made on
reducing chamber housing (7).
Two cast passages for inlet and outlet of gasoline are made in the inner space of the reducing chamber
housing.
The housing accommodates reducing valve (6) assembly and priming valve (23) with spring (22).
Reducing chamber cover (26) is attached to housing (7) and to housing (33) of the pump by six screws
(24), (38) and (40).
Cover (26) has a boss with external thread for cap (29) and internal thread for adjustment screw (28) and
a boss with a hole for communicating with atmosphere.
Reducing valve assembly diaphragm (25) is installed between the mating surfaces of the cover and
housing of the reducing chamber.
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...
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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...
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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...
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Страница 288: ...T t en 0 CO 0 T K D fi h0 Ol f 01 3 0 F4...
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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...
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