 |
|||
|
|
|||
|
Page Title:
Table 4-2. Engine Start-up Performance Checks (Cont) |
|
||
| ||||||||||
|
|
 TM 55-4920-405-13&P
Table 4-2. Engine Start-up Performance Checks - Continued
q
Normal
Abnormal
Step
Action
Indication
Indication
Corrective
Action
5
Set STARTER
Engine cranks
a. Engine will not crank.
a.
(1)
Set IGNITION SWITCH
switch (5, figure
and then starts.
Probable cause:
to ON and repeat step.
2-2) to up position,
(2)
Repair or replace bat-
(1) IGNITION SWITCH
hold until engine
tery cable.
set to OFF.
starts, then re-
(3)
Replace switch or re-
(2) Defective battery
lease switch.
pair wiring as necessary.
cable.
(4)
Test and replace
(3) Defective
starter solenoid and/or
STARTER switch
wiring as necessary.
or wiring.
(5)
Test and replace or re-
(4) Defective starter
pair as necessary.
solenoid or wiring
(6)
Replace or charge
(5) Defective starter
battery.
motor.
(6) Battery dis-
charged.
b. Engine cranks, but
b.
(1) Wait 10 minutes and
will not start. Prob-
repeat this step.
able cause:
(2) Adjust or replace
carburetor.
(1) Carburetor
(3) Replace spark plug.
flooded.
Replace or repair
(2) Defective
magneto.
carburetor.
(5) Replace or charge
(3) Defective spark
battery.
plug.
(4) Defective
magneto.
(5) Battery
discharged.
6
Open engine choke
Engine runs sm
a.
Engine stops sudden-
a.
(1) Wait 10 minutes and
by pushing in
smoothly at
ly. Probable cause:
repeat steps 5 and 6.
CHOKE control (1,
selected RPM.
(2) Adjust, repair or re-
(1) Carburetor
Read RPM on
place carburetor.
flooded.
(3) Repair defective air
(2) Carburetor
HOUR METER (1,
cleaner.
defective.
(4) Replace thermal switch.
(3) Defective air
(5) Fill fuel tank with
cleaner.
gasoline.
(4) Defective thermal
switch on
manifold.
(5) Insufficient fuel.
Engine runs erra-
b.
).
(1) Adjust, repair or re-
tically. Probable
place carburetor.
cause:
(2) Flush fuel tank or re-
place damaged fuel
(1) Carburetor de-
tank .
fective or mis-
(3) Replace fuel strainer.
adjusted.
(4) Replace or repair fuel
(2) Foreign matter
pump,
in fuel tank.
(3) Foreign matter
in fuel strainer.
(4) Faulty fuel pump.
Engine exhaust
c.
c. Inspect and repair engine
smokey (black).
as necessary.
P r o b a b l e cause: de-
fective internal
engine parts.
4-4
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals