TM 55-1930-209-14&P-19
Table 9-3. Preventive Maintenance Checks and Services for Electrical Power Systems(Continued)
B - Before
D - During
A - After
H - Hourly Interval
INTERVAL
ITEM
PROCEDURES
EQUIPMENT
ITEM
TO BE
CHECK FOR AND HAVE
IS NOT READY/
NO.
INSPECTED
REPAIRED OR ADJUSTED
AVAILABLE IF
B D A
H
AS NECESSARY
NOTE
Some 4.236M engines may not have a vent
plug on filter assembly. In this case,
remove, rather than loosen, filter end of fil-
ter-to-tank return pipe. Use this as vent
plug.
If engine misfires or has excessive exhaust
smoke, further bleeding of fuel system is
necessary. Loosen fuel lines at cylinder
head. Crank engine until fuel flows free of
air bubbles. Tighten fuel lines. Clean any
spilled fuel oil.
8
250 hrs
Cooling System
a. Drain, flush if necessary, and refill cooling
system by performing the following:
1)
Remove coolant filler cap. Open
engine block drain on right side of
engine block just in front of flywheel
housing. Also open drain tap on
exhaust manifold housing. Remove
drain plug from coolant interchange
tank. Allow coolant to drain to bilge.
When operation is completed, pump
bilge dry.
2)
Clean drain plug and reinstall.
3)
Check filler cap gasket. If damaged,
obtain new cap or install new gasket
in cap.
4)
Fill cooling system slowly with 3.5 gal
of clean, fresh water.
5)
Drain fresh water from cooling sys-
tem. Check for impurities and discol-
orations. If water is clean, install drain
plug and proceed. If water is exces-
sively dirty or cloudy, flush using the
following procedures:
(a) Remove engine block and radiator
drain plugs to completely drain
system.
9-30
