TM 55-4920-384-13&P
AVIATION UNIT AND INTERMEDIATE MAINTENANCE
INSTRUCTIONS
Section I. PREVENTIVE MAINTENANCE
4-1. General. Preventive maintenance is per-
mation of the person performing the in-
formed by AVIM personnel at 50 and 100 hour
spection. An "X" in this column indicates that
intervals. The preventive maintenance ser-
an inspection should be made of the listed
vices to be performed at these regular inter-
items in accordance with instructions. The in-
vals are listed in Table 4-1. The first column
dicated items and instructions constitute
headed "Inspection" is provided for the in for-
minimum inspection requirements for the
equipment.
4-2. Aviation Unit and Intermediate Pre-
ventive Maintenance Authorized Services.
100
50
GENERAL
HOUR
HOUR
INSPECTION
Before operation service. Perform the ser-
vices listed in "Daily Before Operation Ser-
vices" Table 3-1, Chapter 3, Section III.
Lubrication. Inspect for missing or dam-
aged lubrication fittings and inspect for in-
dications of improper lubrication. Inspect
lubricant level in engine crankcase. Inspect
for oil and grease leaks; also inspect for de-
fective or damaged oil seals.
Lubricate as necessary in accordance with
Table 2-1. Replace missing or damaged fit-
tings. Correct all oil or grease leaks.
