INTERVAL
TM 5-4320-302-14
Table 2-2. Operator/Crew Preventive Maintenance Checks and Services-Continued
B BEFORE OPERATION
A AFTER OPERATION
M MONTHLY
D DURING OPERATION
W WEEKLY
B
D
A
W
M
26
Exhaust Primer Assembly.
Engine exhaust
gases cannot
exit exhaust
WARNING
system without
causing exces-
sive back pres-
Exhaust primer assembly may be hot from
sure.
previous operation. Prior to touching portions
of exhaust system, make sure that equipment
has cooled.
An exhaust valve that fails to open easily can
cause excessive exhaust back pressure, which
can damage the engine.
Check that handle is not in contact with exhaust
valve.
Check that exhaust
valve moves easily,
without binding in
either the open or
closed position.
Open and close
cock valve to check
operation. Leave
cock valve in
closed position.
Visually check
venturi for ob-
structions. Re-
move any ob-
struction.
ITEM
NO.
ITEM TO BE INSPECTED
PROCEDURE
EQUIPMENT IS NOT
READY/AVAILABLE IF:
2-42
