TM 5-3805-262-20
3-4. ENGINE TROUBLESHOOTING (CONT)
TEST OR INSPECTION
CORRECTIVE ACTION
6. ENGINE STALLS FREQUENTLY OR DOES NOT DEVELOP FULL POWER (Cont).
S t e p 8 . ( C o n t ).
c. Hold BUCKET control lever
in CROWD position for 15
seconds. Then return
BUCKET control lever to
NEUT. position for 15
seconds.
d. Repeat step c above until
hydraulic pump outlet tube
is warm to touch, then re-
l e a s e a c c e l e r a t o r p e d a l.
R e l e a s e p a r k i n g b r a k e .
Operate engine at idle speed.
Press and hold down brake
treadle and valve pedal for
remainder of test.
Place transmission control
lever in H position.
P r e s s a c c e l e r a t o r p e d a l f u l l y .
Hold BUCKET control lever in
CROWD position.
Using a tachometer, press
tachometer against engine
tachometer drive shaft as
shown. Watch engine rpm.
T e l l a s s i s t a n t t o w a t c h t h e r-
mometer of temperature probe
i n s t a l l e d i n t r a n s m i s s i on
elbow.
When transmission temperature
reaches 200 degrees F and
tachometer pointer stops mov-
ing, record engine speed as
indicated by tachometer
p o i n t e r .
Engine tachometer drive shaft
operates at half engine speed.
Double tachometer indication
to obtain engine rpm.
Engine speed should be 1430 rpm minimum.
Release accelerator pedal, move BUCKET control lever to NEUT. posi-
tion, and place transmission control lever in N position.
Allow engine to operate at idle speed for 3 minutes then shut off
engine.
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