MTD 464 Betriebsanleitung PDF herunterladen (Seite 408)

ARMY TM 9-6115-464-34

AIR FORCE TO 35C2-3-445-2

NAVY NAVFAC P-8-624-34

5-3. HEATER CONTROL ASSEMBLY.

a. Removal. Refer to the Operator and Unit Maintenance Manual for heater control assembly removal

instructions.

b Disassembly.

(1) Tag all electrical leads before disconnecting.

(2) Remove screws (1, figure 5-1), and remove panel assembly (9), from housing (21).

(3) Remove nut (2), tooth lockwasher (3), on-off switch (15), and key washer (11).

(4) Remove nut (4), Iockwasher (5), and circuit breaker (16).

(5) Remove lens (6), lamp (7), nut (8), lockwasher (10) and indicator light base (17) from panel (9).

(6) Remove screw (13) from housing (14).

(7) Remove nut (18), screw (19), and connector, from housing (21).

c. Cleaning, Inspection, and Repair.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

WARNING

Compressed air used for cleaning and drying purposes can create airborne particles

that may enter the eyes. Pressure shall not exceed 30 psig and use only with adequate

chip guards and chipping goggles. Failure to observe this warning could result in

serious personal injury or death.

WARNING

Solvent, Dry Cleaning P–D-680, Type II is flammable and moderately toxic to skin,

eyes and respiratory tract. Eye and skin protection required. Good general ventilation

is normally adequate. Failure to observe this warning could result in serious personal

injury or death.

Clean all electrical parts with filtered compressed air and a soft bristle brush. If necessary, caked

deposits may be removed with a clean, lint-free cloth moistened with solvent P-D-680 Type Il.

Clean all non-electrical parts with a clean, lint–free cloth moistened with dry cleaning solvent

(Federal Specification P-D-680).

Inspect ON-OFF switch for cracked casing, corrosion, and burns or other evidence of shorting.

Place switch in the ON position and check for continuity, using an ohmmeter. Ohmmeter shall

indicate continuity. Check for open circuit with switch in the OFF position. Ohmmeter shall indicate

open circuit.

Inspect circuit breaker for cracked casing, corrosion, and burns or other indications of shorting.

Using an ohmmeter, check for open circuit across circuit breaker terminals. Ohmmeter shall indicate

open circuit. Depress circuit breaker button. Ohmmeter shall indicate continuity.

Inspect indicator light lens for cracked or broken glass, corrosion, and other damage.

Inspect lamp for cracked or broken glass, burned out filament and corrosion.

Check indicator light base for cracks, corrosion, and burns.

Inspect wiring harness for damaged connectors, wires, and terminals. Check individual wires for

continuity using figure 5-2 as a guide.

5-5

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MTD 464 Betriebsanleitung Seite 408

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