TM 5-3805-262-20
3-30. ENGINE TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. ENGINE STALLS FREQUENTLY OR DOES NOT DEVELOP FULL POWER (Cont).
Step 3.
Check for air in fuel system.
a .
b.
Open bleed valve on first stage
f i l t e r .
T e l l a s s i s t a n t t o t u r n i g n i t i on
key switch to on position.
Close bleed valve when clear
bubble free fuel appears. Tell
a s s i s t a n t t o t u r n i g n i t i o n k ey
switch to off position.
Open bleed valve on second stage
f i l t e r .
T e l l a s s i s t a n t t o t u r n i g n i t i on
key switch to on position.
Close bleed valve when clear
bubble free fuel appears. Tell
a s s i s t a n t t o t u r n i g n i t i o n k ey
switch to off position.
Use clean cloth and wipe up any
D i e s e l f u e l s p i l l a g e.
If no air in fuel system, go to step 4 below.
Step 4.
Operate engine for 15 minutes at idle speed to warm coolant.
Unlock radiator cap access panel.
R e m o v e r a d i a t o r c a p s l o w l y t o r e l i e v e
pressure before completely removing when
e n g i n e i s h o t .
F a i l u r e t o d o s o c o u ld
c a u s e s e v e r e b u r n s d u e t o h o t s t e am
s c a l d i n g y o u . I f y o u a r e s c a l d e d b y h ot
steam, seek medical aid immediately.
Carefully remove radiator cap, and
measure coolant temperature using a
thermometer (be sure thermometer does
not touch any metal parts of radia-
t o r ) .
Coolant temperature must be between
175 to 202 degrees F.
3-226
