TM 5-4310-369-14
Section IV. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
General
Preventive Maintenance Checks and Services
To ensure that the air compressor is ready for operation
a. This paragraph contains a tabulated listing of pre-
ventive maintenance services which must be performed by
at all times, it must be inspected systematically so that de-
fects may be discovered and corrected before they will re-
organizational maintenance personnel at quarterly intervals.
sult in serious damage or failure. Defects discovered during
A quarterly interval is equal to 3 calendar months, or 250
operation of the units shall be noted for future correction,
hours of operation, whichever occurs first.
to be made as soon as operation has ceased. Stop operation
b. The item numbers are listed consecutively and in-
dicate the frequency of minimum requirements. Refer to
immediately if a deficiency is noticed which would damage
the equipment if operation were continued. All deficiencies
It should be noted that the item number column is used as
and shortcomings will be recorded together with the cor-
a source of item numbers for the TM number column on
rective action taken on DA Form 2404 (Equipment In-
DA Form 2404 Equipment Inspection and Maintenance
spection and Maintenance Worksheet) at the earliest
Worksheet, in recording results of Preventive Maintenance
possible opportunity.
Checks and Services.
For Readiness Reporting,
Procedures Check For And Have
Item
Repaired, Replaced, Adjusted
Equipment Is Not
Item To Be Inspected
No.
As Necessary
Ready/Available If
Drive Belts
Inspect for improper tension, excessive wear and
1
Belts are cracked.
cracked or frayed condition. Refer to paragraph
Inspect for leaks, damage, and loose connections.
2
Aftercooler and Intercooler
Replace a defective tube. Refer to paragraph 4-20.
Inspect for improper operation and insecure
Relief Valve
3
Valve leaks.
mounting. Refer to paragraph 4-18.
4
Inspect for damage and insecure mounting. With
Constrols and Instruments
Controls are damaged
the unit operating, check for improper operation.
or missing.
5
Inspect for leaks and damage. Refer to paragraph
Air Receiver Tank
Tank leaks.
4-21.
6
Check fuel level. Inspect for leaks, loose and
Fuel Tank
Tank leaks.
missing hardware. Refer to paragraph 4-11.
7
Check oil level. Add oil as indicated on sight glass.
Compressor Crankcase Oil
Oil level is low.
Level
See table 3-1 for proper type of oil to use.
8
Tires, Tubes and Wheels
Inspect for cuts, foreign objects and damage. Check
air pressure. Proper pressure is 25 psi (1 .75 kg/sq cm).
Refer to paragraph 4-24.
Engine Oil Level
9
Check oil level. Add oil as indicated on oil gage.
Oil level is low.
See figure 3-2 for proper type of oil to use.
