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 TM 55-1905-223-10
Table 2-2. Operator/Crew Preventive Maintenance Checks and Service - CONT
B - Before
D - During
A - After
W - Weekly
M - Monthly
INTERVAL
PROCEDURES
EQUIPMENT IS
ITEM
ITEM TO BE
CHECK FOR AND HAVE REPAIRED
NOT READY/
NO
B
DA W M
INSPECTED
OR ADJUST AS NECESSARY
AVAILABLE IF:
85
Reduction Gear
(Port) -
continued
Oil Level
Check that oil level is filled
Low oil level.
to upper dipstick mark. Add
oil if required. Refer to LO
55-1905-223-12.
Leaks
Inspect reduction gear unit for
Class III
oil or water leaks
leaks.
Clutch Control
Check that engine speed and
clutch control air valve is in
neutral position.
Air Transfer
Check that control air transfer
Valve
valve is in local position.
Reduction Gear
Check gauge for normal readings
Pressure below
Cooling Pump
(30 psi).
28 psi or above
32 psi.
Oil Pressure
Check for oil pressure between
Low oil
260-280 psi.
pressure.
Oil Operating
Check operating temperature.
Temperature
Temperature
Normal range should be 140F -
exceeds 160F
160F.
on gauge.
86
Main Propulsion
Check the engine for debris,
Debris, foreign
Engine (Port)
foreign objects and loose or
objects wedged
broken fittings Refer
or lodged in
problems to unit maintenance.
components.
Engine
Inspect engine, fuel injection
Accessories and
pumps and cooling pumps for
Connections
loose or damaged connections or
mountings.
Air Pressure
Check starting air pressure for
Low air
minimum of 125 psi reading
pressure.
2-256
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