TM 9-4120-370-14
TO 35E9-229-1
4-67. CONTROL CIRCUIT BREAKERS (CB2 AND CB3) - Continued.
b. Removal
(1) Tag and disconnect wire leads.
(2) Using screwdriver remove six screws, lock washers, and flat washers.
(3) Remove circuit breaker(s) and circuit breaker cover.
Installation
c.
(1) Using screwdriver, secure circuit breakers (CB2 and CB3) and circuit breaker cover to panel with six
screws, lock washers, and flat washers.
(2) See tags and wiring diagram (Figure 4-20) and connect wire leads.
(3) Remove tags.
(4) Slip panel back into safety control box and aline holes.
(5) Using screwdriver, secure panel to safety control box with four flat head screws.
Followon procedures:
2. Check that circuit breakers are reset to the ON position.
4-68. EVAPORATOR COIL CLEANING
Preliminary procedure:
a.
Inspection of installed coil
(1) Check to be sure that power is disconnected.
(2) Check for accumulated dirt. Clean if an accumulation of dirt is evident.
(3) Check fins for dents, bent edges, or any condition that would block or distort air flow. Straighten all damaged
fins with a plastic fin comb.