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Page Title:
Figure 3-18. Removal installation and testing of transformer |
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 TM 5-4120-356-14
REMOVAL OF TRANSFORMER
Disconnect the air conditioner from
the electrical power source before
attempting to remove components from
the junction box.
REFER TO PARAGRAPH 3-10I FOR PRELIMINARY
1.
STEPS IN REMOVAL OF THE TRANSFORMER.
2. TAG AND DISCONNECT ELECTRICAL LEADS FROM
TRANSFORMER.
3. REMOVE FOUR NUTS (2) AND WASHERS (3)
FROM TRANSFORMER MOUNTING STUDS.
4. REMOVE TRANSFORMER (4) AND INSULATION
(5) FROM JUNCTION BOX (1).
5. SEPARATE INSULATION (5) FROMTRANS-
FORMER (4).
INSTALLATION OF TRANSFORMER
POSITION INSULATION (5) ON TRANS-
1.
FORMER (4) AND POSITION TRANSFORMER
ON TOP OF JUNCTION BOX (1).
SECURE TRANSFORMER TO JUNCTION BOX
2.
WITH FOUR NUTS (2) AND WASHERS (3).
3. CONNECT ELECTRICAL LEADS TO PROPER
TERMINALS ON TRANSFORMER. REMOVE
TAGS FROM ELECTRICAL LEADS.
4. REFER TO PARAGRAPH 3-10I FOR FINAL
STEPS IN INSTALLATION OF TRANSFORMER.
TRANSFORMER TEST
CHECK FOR CONTINUITY BETWEEN TERMINAL H1 AND H2.
1.
REPLACE TRANSFORMER IF AN OPEN CIRCUIT IS FOUND.
2. CHECK FOR CONTINUITY BETWEEN TERMINALS X1 AND X2.
REPLACE TRANSFORMER IF AN OPEN CIRCUIT IS FOUND.
3. CHECK FOR SHORT CIRCUIT BETWEEN TERMINALS H1 AND X1.
REPLACE TRANSFORMER IF A SHORT CIRCUIT IS FOUND.
4. CHECK FOR SHORT CIRCUIT BETWEEN TERMINAL H1 AND THE
TRANSFORMER SCHEMATIC DIAGRAM
TRANSFORMER CASE. REPLACE TRANSFORMER IF A SHORT
CIRCUIT IS FOUND.
5. CHECK FOR SHORT CIRCUIT BETWEEN TERMINAL X1 AND THE
TS5412035614/318
TRANSFORMER CASE. REPLACE TRANSFORMER IF A SHORT
CIRCUIT IS FOUND.
Figure 3-18. Removal installation and testing of transformer
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