TM 55-1930 209 14&P-91
Table C-1. Preventive Maintenance Checks and Services for Electrical Power Systems (Continued)
B - Before
D - During
A - After
H - Hourly Interval
Interval
Procedures:
Equipment Is
Item
Item to be
Check for and have repaired
Not Ready/
No.
B D
A
H
Inspected
or adjusted as necessary
Available If:
NOTE
Some 4236M engines May not hove a vent
plug on filter we8nibly. In this case,
remove, rather loosen, filter end of filter-
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.
7
250 hrs
Cooling System
a. Drain, flush if necessary, and refill cooling
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 system
Check for impurities and discoloration
n water is clean, fti1 drain plug and
proceed. If water is excessively dirty or
cloudy, flush using the following
procedures:
(a)
Remove engine block and
radiator drain plugs to completely
drain system.
C-30
