Item
No.
13
14
15
16
TM 5-4320-200-13&P
Table 4-1 Unit Preventive Maintenance Checks and Services (Cont.)
Interval
Semiannually
Semiannually
Semiannually
Semiannually
Item To Be
Checked Or Serv-
iced
SUCTION
VALVE
SPARKPLUG
AND CABLE
CONTACT
POINTS AND
CONDENSER
CRANKCASE
Procedure
Check suction valve ( 1) for
roper operation and leaks.
a. Check spark plug for
cracked insulation or burned
electrodes. Clean and set
plug gap (para 4-22).
b. Check spark plug cable
for loose connections and
damaged insulation.
Check for pitted or burned
points. Clean and set point
gap (para 4.31)
Check vent assembly for dirt
or damage.
Not Fully Mission Capa-
ble If:
Suction valve leaks, has
racks or is loose.
Spark plug has burned
electrodes or cracked
insulation.
Spark plug cable is
loose or insulation is
damaged.
Point or burned or
pitted. Condenser de-
fective.
Vent assembly dam-
aged or dirty.
Change 5
4-2.5
