FUEL PUMP 702ML - TROUBLE SHOOTING
For mostly often encountered troubles and their remedies, refer to the Table given below.
Trouble Possible
cause
Correction
1. Soon after starting
engine, fuel pressure gradually
drops to zero and engine stalls
2. Fuel pressure is normal at
idle but drops drastically as rotation
speed increases
3» Fuel pressure is normal
but carburetor is short of fuel
4. Low or zero fuel pressure
but engine runs normally
5. Fuel pressure is unstable,
pressure gauge pointer hunts
6. Low fuel pressure, insuf-
ficient pump delivery
7. Fuel flows to drain line.
Oil return exceeds 5 droplets per
hour
Leaky joints in suction sys-
tem (air suction)
Clogged fuel filter, clogged
fuel line
Clogged fuel line between
pump and carburetor, jammed
carburetor needle
Clogged or disconnected
pipe between fuel line and pressure
gauge, faulty pressure gauge
Jamming of reducing valve
guide portion
Foreign particles in reducing
valve, jammed priming valve
Loosened seal nut (13) (Ref.
Fig. 1),worn seals (17), shrinkage of
sealing rings (10) and (11)
Check suction line joints for
leakage and eliminate suction of air
(Ref. 072.00.00, Task Card No. 228)
Clean fine fuel filter (Ref.
072.00.00, Task Card No. 229),
carburetor fuel filter (Ref. 072.00.00,
Task Card No. 258), blow suction line
(Ref. 072.00.00, Task Card No. 228)
Blow delivery line (Ref.
072.00.00, Task Card No. 228),
eliminate jamming of carburetor
needle (Ref. 073.10.03, Task Card
No. 203)
Inspect and eliminate pipe
defects, replace pressure gauge
according to airplane Maintenance
Manual
Replace fuel pump (Ref.
Task Card No. 201)
Replace fuel pump, inspect
filters
Tighten seal nut, replace
fuel pump
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...
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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...
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