TM 55-4920-328-13
a. Fill the hydraulic fluid tank (7, figure 1-8) with
Specification MIL-H-83282A hydraulic fluid to the full
mark on the sight gage (8). Immediately wipe up
spillage of fluid to prevent paint deterioration and
contamination of other components on the test trailer
deck.
b. Check the oil level in the engine 6-quart
capacity crankcase, using the dipstick. If required, add
oil through the breather tube to the full mark on the
dipstick. For warm weather operation (40 °F to 120°F),
use SAE 30 oil. For cold temperatures (15 °F to 40°F),
use SAE 20-20W. For colder temperatures (0 °F to
150F), use SAE 10W. For arctic operation (below 0 °F),
use SAE 5W20W. If the oil filter has been changed
during servicing, add one additional quart of oil.
WARNING
Observe all fire and safety regulations
pertaining to handling flammable or
toxic fuels. Failure to observe this
warning may result in serious or fatal
Injury due to fire.
c. Fill the gasoline tank to a level below the fill
cap (6), using regular grade gasoline with an octane
rating above 90. Check to ensure that the air vent in the
fill cap is not plugged.
6-7. Test Trailer Fuel System.
Service the fuel system (figure 1-10) upon receipt of the
equipment, and as usage dictates, in accordance with
the following:
a. Check to ensure that the manual drain valves
(3) are securely closed.
b. Remove the fill cap (2) from the fuel tank
assembly (1).
WARNING
Observe all base fire and safety
precautions pertaining to handling
flammable and toxic liquids. Failure to
observe this warning may result in
serious or fatal injury from fire and
explosion, or from inhalation of fumes.
c.
Fill the fuel tank assembly (1) with
Specification MIL-T-5624 JP-4 or JP-5 fuel to the
bottom of the pipe below the fill cap.
d. Install the fill cap (2).
e. After filling, allow the residual water to settle to
the bottom, then drain the water from the fuel tank.
6-8. Test Trailer Oil System.
Service the test trailer oil system (figure 1-12) upon
receipt of the equipment, and as usage dictates, in
accordance with the following:
a. Check to ensure that the manual drain valve
on the lubricating oil unit (6) is securely closed.
WARNING
Observe all base fire and safety
regulations pertaining to handling
flammable and toxic liquids. Failure to
observe this warning may result in
serious or fatal injury. Exposure to
turbine oil will cause skin irritation.
b. Remove the fill cap, vent, and strainer (15).
c. Fill the reservoir with lubricating oil conforming
to Specification MIL-L-23699 to the bottom of the fill
pipe. Do not overfill the reservoir; thermal expansion
will cause overflow due to the increase in volume as the
temperature rises.
d. Install the fill cap, vent, and strainer (15).
e. After 100 hours of operation of the system,
drain and refill the reservoir as specified in step (c).
f. In the event of a mechanical failure which could
contaminate the lubrication system, drain the reservoir,
then flush the system with SAE No. 10 oil to remove
particulate matter. Drain the flushing oil and refill the
reservoir with the oil specified in step (c).
6-9. Oil Flushing Procedures.
To flush Specification MIL-L-7808 lubricating oil from
the test trailer oil system (figure 1-12) and replace with
Specification MIL-L-23699 oil, accomplish the following
procedures:
a. Energize the generator set (figure 7-31) as
specified in chapter 2, Preliminary Checkout Prior to
Test paragraph.
b. Energize the INST PWR ON switch (7, figure
1-26).
c. Energize the following switchlight units on
services panel assembly 4A1 (9, figure 1-25):
ENGINE DC (27)
115 VAC 400 HZ (28)
INST DC (29)
CONSOLE DC (30)
26 VAC 400 HZ (31)
Change 1 6-3
