TM 1-1510-223-10
case on the engine. The tank has a calibrated oil dipstick
and an oil drain plug. Avoid spilling oil Any oil spilled
must be removed immediately. Use a cloth moistened in
solvent to remove oil. Overfilling may cause a discharge
of oil through the accessory gearbox breather during
engine operation, until a satisfactory level is reached.
Service oil system as follows:
1.
Open access door on upper cowling to gain
access to oil filler cap and dipstick.
A cold oil check is unreliable. If possible,
check oil within 10 minutes after engine
shutdown. If over 10 minutes have elapsed,
motor the engine for 40 seconds, then check
If over 10 hours have elapsed, start the
engine and run for 2 minutes, then check.
Add oil as required. Do not overfill.
2.
If oil level is over 2 quarts low, motor or run
engine as required, and service as necessary.
3.
Remove oil filler cap.
4.
Insert clean funnel, with screen incorporated,
into filler neck
5.
Replenish with oil to within 1 quart below
MAX mark or MAX COLD on dipstick (cold
engine). Fill to MAX or MAX HOT (hot
engine).
6.
Check oil filler cap for damaged preformed
packing, general condition and locking.
Ensure that oil filler cap is correctly installed
and securely locked to prevent loss of oil
and possible engine failure.
7.
Install and secure oil filler cap.
8.
Check for any oil leaks.
2-96. SERVICING THE HYDRAULIC SYSTEM.
a.
Servicing Hydraulic Brake System Reservoir.
1.
Gain access to brake hydraulic system
reservoir.
2.
Remove brake reservoir cap and fill
reservoir to washer on dipstick
with
hydraulic fluid.
3.
Install brake reservoir cap.
b.
Servicing
Hydraulic
Landing
Gear
System.
Servicing the hydraulic landing gear extension/ retraction
system consists of maintaining the correct fluid level and
maintaining the correct accumulator precharge. The
accumulator is located in the reservoir access area and is
charged to 800 +50 PSI using bottled nitrogen. A
charging gage is mounted on the accumulator. A
reservoir, located just inboard of the left nacelle and
forward of the main spar, has a lid with a dipstick attached
marked FLUID TEMP 0°F, 50°F, 100°F Add MILH-5606
hydraulic fluid (consumable materials list) as required to
fill the system, corrected for temperature.
2-97. INFLATING TIRES.
Inflate tires as follows:
a.
Inflate nose wheel tires to a pressure between 55
and 60 PSI.
b.
Inflate main wheel tires to a pressure between 73
and 77 PSI.
2-98. SERVICING THE CHEMICAL TOILET.
The toilet should be serviced during routine ground
maintenance of the aircraft following every usage. The
waste storage container should be removed, emptied, its
disposable plastic liner replaced, and the container
replaced in the toilet cabinet Toilet paper, waste container
plastic liners, and dry chemical deodorant packets should
also be resupplied within the toilet cabinet as needed.
2-99. SERVICING THE AIR CONDITIONING SYSTEM.
Servicing the air conditioning system consists of
checking and maintaining the correct refrigerant level,
compressor oil level, belt tension and condition, system
leak detection, and replacement of the evaporator air
filters. It is imperative that maintenance of the air
conditioning system, except for filter replacement, be
accomplished only by qualified refrigerant system
technicians.
2-100. ANTI-ICING, DEICING, AND DEFROSTING
TREATMENT.
NOTE
Do not apply anti-icing, deicing, and defrosting
fluid to exposed aircraft surfaces if snow is
expected. Melting snow will dilute the defrosting
fluid and form a slush mixture which will freeze in
place and become difficult to remove.
The aircraft is protected in subfreezing weather by
spraying the surfaces (to be covered with protective
covers)
2-89
