Section III. PREVENTIVE MAINTENANCE SERVICES
noticed during operation which would damage the
73. Operator
equipment if operation continued. After operation services
To insure that the equipment is ready for operation at
will be performed by the operator for periods longer than 10
all times, inspect it systematically before operation, during
hours, the unit will be stopped and after operation service
operation, at halt, and after operation, so that defects may
will be performed at 10-hour intervals.
Defects or
be discovered and corrected before they result in serious
unsatisfactory operating characteristics beyond the scope
damage or failure. The necessary preventive maintenance
of the operator to correct must be reported to the proper
services will be performed before operation. Defects
authority. Responsibility for performance of preventive
discovered during operation of the unit will be noted for
maintenance services rests not only with the operator, but
future correction, to be made as soon as operation has
with the entire chain of command from section chief to
ceased. Stop operation immediately if a deficiency is
commanding officer (AR 7505).
74. Operator's Daily Services
Intervals
Before
During
After
operation
operation
At halt
operation
PROCEDURE
X
X
X
X
Visual inspection. Visually inspect the entire unit for cracks, breaks,
and loose or missing assembly screws and lockwashers. Inspect
for any tampering or damage that may have occurred since the
lubricating unit was last operated. Correct deficiencies before
using the lubricating unit.
X
X
X
Fuel. Check the fuel supply. See that the fuel tank is full.
X
X
Leaks. Check for lubrication leaks and air leaks. Check swivel joints
at hose reel inlets.
Cleaning. Use a brush to remove loose dirt from the exterior of the
X
lubricating unit. Use an approved cleaning solvent to remove dirt
and grease accumulations.
Instruments. Check all gages for broken glass and secure mounting.
X
X
X
Draincock. Open the draincock for a short time to release moisture in
the air receiver.
Air cleaner. Frequently inspect and clean the air cleaner (par. 65g).
X
X
X
Inspect for secure mounting and loose connections. Check the
condition and level of oil in the bowl.
X
Unusual noises or operation. While operating the lubricating unit
check for any unusual noises which may indicate trouble.
Determine the cause of any excessive vibration or unusual noise
which may indicate loose or damaged parts, or lack of proper
lubrication. Stop the lubricating unit and correct the trouble or
report the condition to the proper authority.
X
Tools and equipment. See that all tools and equipment assigned to
the unit are in serviceable condition, clean, and properly stowed.
Fire extinguisher. Check the condition of the fire extinguisher and
X
inspect it for full charge (par. 61). Do not discharge contents.
See that it is securely mounted.
Protection. If freezing temperature is anticipated, drain all moisture
X
from the air receiver. Leave the drain valve open.
Lubrication.
Inspect the entire unit for missing or damaged
X
X
X
lubrication fittings, and for indications of insufficient lubrication.
Lubricate per (LO 5-4930-202-12).
Appearance. Inspect the general appearance of the unit, giving
X
X
particular attention to identification markings, and condition of the
paint.
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