ARMY TM 9-6115-464-34
AIR FORCE 35C2-3-445-2
NAVY NAVFAC P-8-624-34
(1) Disassemble governor control unit (7 through 58) only as is necessary for inspection, testing, and
replacement of parts.
Disassembly and repair of the electric governor control unit at the field level is
restricted to removal of the cover, connectors, potentiometers and test jacks. Further
disassembly requires unpotting which can be performed by depot maintenance
(2) Remove screws (7) and Iockwashers (8) and carefully Iift cover and situate at angle to prevent potting
compound from contacting variable resistors and connectors.
Flash point of potting compound is 515°F (268. 3°C). Do not allow oven to reach this
temperature. The melting temperature of patting compound is 165°F (73.8°C). Failure
to observe this caution could result in damage to the equipment.
(3) Place governor control unit in an oven and bake at + 180°F to 185° (+82.2°C to +85°C) for 11 to 12
Wear protective glasses and heat resistant gloves when removing governor control
unit. Hot potting compound will cause severe burns should it come in contact with the
skin. Failure to observe this warning could result in servere personal injury or death.
(4) Remove governor control unit from oven.
(5) Slowly lift cover (54) with attached parts and printed circuit board (57) from housing (58).
(6) Place printed circuit board on a drain board and allow to cool.
(7) Remove screws (38, 42, 46, and 50) and Iockwashers (39, 43,47, and 51) and attaching con-
nectors (41, 45, 49, and 53), gaskets (40, 44, 48, and 52) and cover (54).
(8) Disassemble remaining components mounted on cover in accordance with index numbers 9 through
e. Cleaning, Inspection, and Repair.
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 servere personal
injury or death.
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
servere personal injury or death.