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 TM 5-4120-339-14
proceed to step (d). If the test result is not satisfactory, proceed to step (e).
(d) When listening for a click from the solenoid, slowly decrease the voltage. The click should occur at or
shortly before the time the voltage has been decreased to 18 volts. If the test result is satisfactory, proceed to step (f). If
the test result is not satisfactory, proceed to step (e).
(e) If the liquid line solenoid valve fails to respond properly during testing, notify Direct Support
Maintenance.
(f) If the liquid line solenoid valve responds properly during testing, refer to figure 3-13 and connect plug
P10 to receptacle J10 on the junction box.
(g) Refer to figure 3-3 and install front access panel.
e. Sight Glass. Maintenance of the sight glass at the organizational level is limited to inspecting the sight glass
for damage which would impair serviceability. If such damage is found, report the condition to Direct Support
Maintenance.
f.
Evaporator Coil.
(1) Inspection.
(a) Turn the selector switch to "OFF" position and disconnect the air conditioner from the electrical
power.
(b) Refer to figure 3-3 and remove the evaporator discharge grille and the mist eliminator.
(c) Refer to figure 3-25 and inspect the evaporator coil for damage which would impair serviceability. If
such damage is found, report the condition to Direct Support Maintenance.
(2) Service.
(a) Clean the evaporator coil with a fiber bristle brush.
(b) Refer to figure 3-3 and install the evaporator discharge grille and the mist eliminator.
g. Condenser Coil.
(1) Inspection.
(a) Turn the selector switch to "OFF" position and disconnect the air conditioner from the electrical
power.
(b) Refer to figure 3-3 and remove the condenser coil guard.
(c) Refer to figure 3-25 and inspect the condenser coil for damage which would impair serviceability. If
such damage is found, report the condition to Direct Support Maintenance.
(2) Service.
(a) Clean the condenser coil and fins with a fiber bristle brush.
(b) Refer to figure 3-3 and install the condenser coil guard.
h. Compressor.
Maintenance of the compressor at the organizational level is limited to inspection of the
compressor.
(1) Refer to figure 3-3 and remove the front access panel.
3-49
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