Section IV: OPERATIONAL CHECKOUT

TM 55-4920-373-14&P

2. Wipe all exposed areas frequently, clean

4. If possible, wet down surrounding area of

off salt water deposits with clear water and wipe

operating site keeping down dust and sand.

dry.

5. Clean engine air cleaner every two to four

3 . Coat all exposed machined metal surfaces

hours. Clean as necessary.

with a thin film of oil.

3-33. RAINY OR HUMID CONDITIONS. Proceed

4. Retouch or repaint damaged paint surfaces

with the following steps:

to prevent corrosion of exposed metal.

1. Lubricate test stand in accordance with

table 3-5.

5. Cover test stand with a tarpaulin or similar

protection when not in use.

2. Keep fuel tank full to prevent accumulation

of condensation.

3-35. HIGH ALTITUDE AREA. Proceed with the

following steps:

3. Keep electrical components clean and dry.

Watch closely for evidence of fungus growth and

remove promptly.

1. The amount of oxygen delivered to the car-

buretor is reduced when operating at high altitudes.

4. Cover test stand with tarpaulin or similar

Reduce the amount of fuel admitted by the car-

protection when not in use.

buretor by adjusting the fuel mixture. Refer to

direct or general support as may be applicable

3-34. SALT WATER AREAS. Proceed with the

for adjustment.

following steps:

2. Keep air cleaner clean to assure maximum

1. Lubricate test stand in accordance with

air passage to the carburetor.

table 3-5.

SECTION IV

OPERATIONAL CHECKOUT

The performance check tables are in the order of

3-36. GENERAL.

test stand startup to shutdown as described in

Chapter 2. Remove, repair or replacement in-

structions applicable at organizational level are

3-37. In this section the operational checkout of

described in Section V of this Chapter.

the test stand is listed in tables 3-6 through 3-9.

3-18