TM 5-6115-434-12
Table 3-2. Preventive Maintenance Checks and Services
Interval
B - Before operation
A - After operation
M - Monthly
Item
Operator
Org.
D - During operation
W - Weekly
Q - Quarterly
Number
Daily
B
D
A
W
M
Q
Item to be inspected
Procedure
Reference
1
x
x
x
Lubricate in accordance
with lubrication order
2
x
x
Fuel supply
Check for adequate fuel for anticipated length of
operation.
3
x
x
Water supply
Check for adequate water for anticipated length of
operation.
4
x
Connections to power unit Check that all connections are properly and
Para 2-3
securely installed.
5
x
x
x
Fire extinguisher
Check for presence of safety seals and observe
Para 2-1
procedures on extinguisher.
6
x
x
Drain lines and drain
Check that compartment moisture drain lines and
openings in floor of
openings are free from obstructions. Check that
power unit enclosure
fuel drain openings below fuel control unit and
turbine plenum are free from obstructions.
7
x
Exhaust openings in top
Check that exhaust openings are free from obstruc- Para 2-1a(6)
of enclosure
tion.
8
x
Return air inlet air filters
Visually inspect filters for accumulation of foreign
material, corrosion, or other damage. Clean
filters with an approved solvent and coat with an
approved filter adhesive.
9
x
Refrigerant level sight
Check level of refrigerant in receivers.
If refrigerant Fig. 1-9
glass
is present glass will appear dark. If no refrigerant
is present, glass will appear shiny. If glass
appears shiny, notify direct support maintenance.
10
x
Battery charging current
Check dc ammeter on instrument panel for
indication of + charging current.
11
x
Exhaust gas temperature
Check that exhaust gas temperature does not
exceed 1225°F (663°C) during steady state
operation.
12
x
x
x
Plumbing lines and com-
Visually inspect all plumbing lines and components Para 2-1(a) (5)
ponents
for evidence of leakage.
13
x
x
x
Batteries
Check battery electrolyte level and specific gravity. Para 2-1b(1) (c)
14
x
x
x
Fans, condensers, evap-
Check for evidence of damage, corrosion, or ac-
Para 2-1a(3)
orators, compressors
cumulation of foreign material
and air filters
15
x
x
Collector box
Inspect and clean air inlet filter collector box.
3-4
